-
David Philipona and J. Kevin O'Regan.
AS Suppleance Arobase,
chapter Perception sensorimotorice de l'espace.
Université de Compiègne,
2004.
Keywords: space,
sensorimotor.
@InBook{msh_04,
author = {Philipona, David and O'Regan, J. Kevin},
title = {AS Suppleance Arobase},
chapter = {Perception sensorimotorice de l'espace},
publisher = {Université de Compiègne},
year = {2004},
keywords = {space, sensorimotor},
rating = {D},
comments = {alimentaire}
}
-
David Philipona and J. Kevin O'Regan.
Agir dans l'espace,
chapter La perception de l'espace, identification d'une faculté sensorimotrice ?.
Catherine Thinus-Blanc,
2004.
Keywords: space,
sensorimotor.
@InBook{thin_04,
author = {Philipona, David and O'Regan, J. Kevin},
title = {Agir dans l'espace},
chapter = {La perception de l'espace, identification d'une faculté sensorimotrice ?},
publisher = {Catherine Thinus-Blanc},
year = {2004},
keywords = {space, sensorimotor},
rating = {D},
comments = {alimentaire}
}
-
David Philipona and J. Kevin O'Regan.
Philosophie de la nature aujourd'hui?,
chapter Perception multimodale de l'espace.
MSH,
2004.
Keywords: space,
sensorimotor.
@InBook{msh_04,
author = {Philipona, David and O'Regan, J. Kevin},
title = {Philosophie de la nature aujourd'hui?},
chapter = {Perception multimodale de l'espace},
publisher = {MSH},
year = {2004},
url = {http://nivea.psycho.univ-paris5.fr/~philipona/perception.pdf},
keywords = {space, sensorimotor},
rating = {D},
comments = {alimentaire}
}
-
Ohad Ben-Shahar and Steven W. Zucker.
Geometrical Computations Explain Projection Patterns of Long Range Horizontal Connections in Visual Cortex.
Neural Computation,
16(3):445-476,,
2004.
Keywords: vision,
neuroscience,
geometry.
| Abstract: Neurons in primary visual cortex respond selectively to oriented stimuli such as edges and lines. The long-range horizontal connections between them are thought to facilitate contour integration. While many physiological and psychophysical findings suggest that collinear or association field models of good continuation dictate particular projection patterns of horizontal connections to guide this integration process, significant evidence of interactions inconsistent with these hypotheses is accumulating. We first show that natural random variations around the collinear and association field models cannot account for these inconsistencies, a fact that motivates the search for more principled explanations.We then develop a model of long-range projection fields that formalizes good continuation based on differential geometry. The analysis implicates curvature(s) in a fundamental way, and the resulting model explains both consistent data and apparent outliers. It quantitatively predicts the (typically ignored) spread in projection distribution, its nonmonotonic variance, and the differences found among individual neurons. Surprisingly, and for the first time, this model also indicates that texture (and shading) continuation can serve as alternative and complementary functional explanations to contour integration. Because current anatomical data support both (curve and texture) integration models equally and because both are important computationally, new testable predictions are derived to allow their differentiation and identification. |
| Comments: Pour améliorer l'estimation de l'orientation d'une courbe en un point, on peut se baser sur la cohérence avec l'estimation en d'autres points : si j'estime que l'orientation en p est alpha, je vais chercher l'estimation en p' = p+alpha*dt, qui doit être de l'ordre de alpha+beta*dt. |
@Article{shah_zuck_04,
author = {Ben-Shahar, Ohad and Zucker, Steven W.},
title = {Geometrical Computations Explain Projection Patterns of Long Range Horizontal Connections in Visual Cortex},
journal = {Neural Computation},
year = {2004},
volume = {16},
number = {3},
pages = {445-476,},
abstract = {Neurons in primary visual cortex respond selectively to oriented stimuli such as edges and lines. The long-range horizontal connections between them are thought to facilitate contour integration. While many physiological and psychophysical findings suggest that collinear or association field models of good continuation dictate particular projection patterns of horizontal connections to guide this integration process, significant evidence of interactions inconsistent with these hypotheses is accumulating. We first show that natural random variations around the collinear and association field models cannot account for these inconsistencies, a fact that motivates the search for more principled explanations.We then develop a model of long-range projection fields that formalizes good continuation based on differential geometry. The analysis implicates curvature(s) in a fundamental way, and the resulting model explains both consistent data and apparent outliers. It quantitatively predicts the (typically ignored) spread in projection distribution, its nonmonotonic variance, and the differences found among individual neurons. Surprisingly, and for the first time, this model also indicates that texture (and shading) continuation can serve as alternative and complementary functional explanations to contour integration. Because current anatomical data support both (curve and texture) integration models equally and because both are important computationally, new testable predictions are derived to allow their differentiation and identification. },
comments = {Pour améliorer l'estimation de l'orientation d'une courbe en un point, on peut se baser sur la cohérence avec l'estimation en d'autres points : si j'estime que l'orientation en p est alpha, je vais chercher l'estimation en p' = p+alpha*dt, qui doit être de l'ordre de alpha+beta*dt. },
url = {http://www.cs.yale.edu/homes/shahar/Publications/NC2004.pdf},
rating = {C},
keywords = {vision, neuroscience, geometry}
}
-
David H. Brainard and Laurence T. Maloney.
Perception of color and material properties in complex scenes.
Journal of Vision,
4:ii-iii,
2004.
Keywords: color,
perception,
color constancy.
| Abstract: introduction for a special issue of Journal of Vision. Entry for references. |
@Article{brai_malo_04,
author = {Brainard, David H. and Maloney, Laurence T.},
title = {Perception of color and material properties in complex scenes},
journal = {Journal of Vision},
year = {2004},
volume = {4},
pages = {ii-iii},
comments = {},
rating = {D},
url = {http://journalofvision.org/4/9/i/},
keywords = {color, perception, color constancy},
abstract = {introduction for a special issue of Journal of Vision. Entry for references.}
}
-
Hugo D. Critchley,
Stefan Wiens,
Pia Rotshtein,
Arne Öhman,
and Raymond J. Dolan.
neural systems supporting interoceptive awareness.
Nature Neuroscience,
7(2):189-195,
2004.
Keywords: neuroscience,
NCC,
awareness.
| Abstract: Influential theories of human emotion argue that subjective feeling states involve representation of bodily responses elicited by emotional events. Within this framework, individual differences in intensity of emotional experience reflect variation in sensitivity to internal bodily responses. We measured regional brain activity by functional magnetic resonance imaging (fMRI) during an interoceptive task wherein subjects judged the timing of their own heartbeats. We observed enhanced activity in insula, somatomotor and cingulate cortices. In right anterior insular/opercular cortex, neural activity predicted subjects' accuracy in the heartbeat detection task. Furthermore, local gray matter volume in the same region correlated with both interoceptive accuracy and subjective ratings of visceral awareness. Indices of negative emotional experience correlated with interoceptive accuracy across subjects. These findings indicate that right anterior insula supports a representation of visceral responses accessible to awareness, providing a substrate for subjective feeling states. |
| Comments: Les émotions seraient la perception de l'état interne de notre corps. Ce papier présente des résultats liés aux capacités d'introspection vis-à-vis du batement de coeur, étudiées par fMRI. Résultat: entre autre, la quantité (sic) de matière grise dédiée au traitement de ces informations perceptive serait corélée avec la capacité de conscience introspective... |
@Article{crit_04,
author = {Critchley, Hugo D. and Wiens, Stefan and Rotshtein, Pia and Öhman, Arne and Dolan, Raymond J.},
title = {neural systems supporting interoceptive awareness},
journal = {Nature Neuroscience},
year = 2004,
volume = 7,
number = 2,
pages = {189-195},
abstract = {Influential theories of human emotion argue that subjective feeling states involve representation of bodily responses elicited by emotional events. Within this framework, individual differences in intensity of emotional experience reflect variation in sensitivity to internal bodily responses. We measured regional brain activity by functional magnetic resonance imaging (fMRI) during an interoceptive task wherein subjects judged the timing of their own heartbeats. We observed enhanced activity in insula, somatomotor and cingulate cortices. In right anterior insular/opercular cortex, neural activity predicted subjects' accuracy in the heartbeat detection task. Furthermore, local gray matter volume in the same region correlated with both interoceptive accuracy and subjective ratings of visceral awareness. Indices of negative emotional experience correlated with interoceptive accuracy across subjects. These findings indicate that right anterior insula supports a representation of visceral responses accessible to awareness, providing a substrate for subjective feeling states.},
comments = {Les émotions seraient la perception de l'état interne de notre corps. Ce papier présente des résultats liés aux capacités d'introspection vis-à-vis du batement de coeur, étudiées par fMRI. Résultat: entre autre, la quantité (sic) de matière grise dédiée au traitement de ces informations perceptive serait corélée avec la capacité de conscience introspective...},
rating = {C},
keywords = {neuroscience, NCC, awareness},
url = {http://www.fil.ion.ucl.ac.uk/~hugo/nn1176_incept.pdf}
}
-
Peter B. Delahunt and David H. Brainard.
Does human color constancy incorporate the statistical regularity of natural daylight?.
Journal of Vision,
4:57-81,
2004.
Keywords: color constancy.
| Abstract: The chromaticities of natural daylights cluster around the blackbody locus. We investigated whether the mechanisms that mediate human color constancy embody this statistical regularity of the natural environment, so that constancy is best when the illuminant change is one likely to occur. Observers viewed scenes displayed on a CRT-based stereoscope and adjusted a test patch embedded in the scene until it appeared achromatic. Scenes were rendered using physics-based graphics software (RADIANCE) coupled with custom extensions that ensured colorimetric accuracy. Across conditions, both the simulated illuminant and the simulated reflectance of scene objects were varied. Achromatic settings from paired conditions were used to compute a constancy index (CI) that characterizes the stability of object appearance across the two illuminants of the pair. Constancy indices were measured for four illuminant changes from a Neutral illuminant (CIE D65). Two of these changes (Blue and Yellow) were consistent with the statistics of daylight, whereas two (Green and Red) were not. The results indicate that constancy was least across the Red change, as one would expect for the statistics of natural daylight. Constancy for the Green direction, however, exceeded that for the Yellow illuminant change and was comparable to that for the Blue. This result is difficult to reconcile with the hypothesis that mechanisms of human constancy incorporate the statistics of daylights. Some possible reasons for the discrepancy are discussed. |
@Article{dela_brai_04,
author = {Delahunt, Peter B. and Brainard, David H.},
title = {Does human color constancy incorporate the statistical regularity of natural daylight?},
journal = {Journal of Vision},
year = {2004},
volume = {4},
pages = {57-81},
abstract = {The chromaticities of natural daylights cluster around the blackbody locus. We investigated whether the mechanisms that mediate human color constancy embody this statistical regularity of the natural environment, so that constancy is best when the illuminant change is one likely to occur. Observers viewed scenes displayed on a CRT-based stereoscope and adjusted a test patch embedded in the scene until it appeared achromatic. Scenes were rendered using physics-based graphics software (RADIANCE) coupled with custom extensions that ensured colorimetric accuracy. Across conditions, both the simulated illuminant and the simulated reflectance of scene objects were varied. Achromatic settings from paired conditions were used to compute a constancy index (CI) that characterizes the stability of object appearance across the two illuminants of the pair. Constancy indices were measured for four illuminant changes from a Neutral illuminant (CIE D65). Two of these changes (Blue and Yellow) were consistent with the statistics of daylight, whereas two (Green and Red) were not. The results indicate that constancy was least across the Red change, as one would expect for the statistics of natural daylight. Constancy for the Green direction, however, exceeded that for the Yellow illuminant change and was comparable to that for the Blue. This result is difficult to reconcile with the hypothesis that mechanisms of human constancy incorporate the statistics of daylights. Some possible reasons for the discrepancy are discussed.},
rating = {C},
keywords = {color constancy},
url = {http://www.journalofvision.org/4/2/1/article.pdf}
}
-
David Donoho and Victoria Stodden.
When does non-negative matrix factorization give a correct decomposition into parts ?.
Advances in Neural Information Processing Systems,
17,
2004.
Keywords: ingeneering,
decomposition.
| Abstract: Etude de la notion de cone simplicial, et de l'unicité de la décomposition, par l'étude du problème dual. |
@Article{dono_stod_04,
author = {Donoho, David and Stodden, Victoria},
title = {When does non-negative matrix factorization give a correct decomposition into parts ?},
journal = {Advances in Neural Information Processing Systems},
year = {2004},
volume = {17},
abstract = {Etude de la notion de cone simplicial, et de l'unicité de la décomposition, par l'étude du problème dual.},
url = {http://www-stat.stanford.edu/~donoho/Reports/2003/NMFCDP.pdf},
keywords = {ingeneering, decomposition},
rating = {C}
}
-
Matthias O. Franz,
Javaan S. Chahl,
and Holger G. Krapp.
Insect-inspired estimation of egomotion.
Neural Computation,
6(11),
2004.
Keywords: perception,
space,
movement.
| Abstract: Tangential neurons in the fly brain are sensitive to the typical optic flow patterns generated during egomotion. In this study, we examine whether a simplified linear model based on the organization principles in tangential neurons can be used to estimate egomotion from the optic flow. We present a theory for the construction of an estimator consisting of a linear combination of optic flow vectors that incorporates prior knowledge about the distance distribution of the environment and about the noise and egomotion statistics of the sensor. The estimator is tested on a gantry carrying an omnidirectional vision sensor. The experiments show that the proposed approach leads to accurate and robust estimates of rotation rates, whereas translation estimates are of reasonable quality, albeit less reliable. |
| Comments: Le flot optique permettrait de donner une représentation linéaire (par champ de vect) du mouvement. Outre la question de la pertinence de la notion de flot optique, il y a la question de la profondeur qui n'est pas pris en compte. |
@Article{fran_chah_krap_04,
author = {Franz, Matthias O. and Chahl, Javaan S. and Krapp, Holger G.},
title = {Insect-inspired estimation of egomotion},
journal = {Neural Computation},
year = {2004},
volume = {6},
number = {11},
pages = {},
comments = {Le flot optique permettrait de donner une représentation linéaire (par champ de vect) du mouvement. Outre la question de la pertinence de la notion de flot optique, il y a la question de la profondeur qui n'est pas pris en compte.},
keywords = {perception, space, movement},
rating = {D},
url = {http://www.kyb.tuebingen.mpg.de/publications/pdfs/pdf2419.pdf},
abstract = {Tangential neurons in the fly brain are sensitive to the typical optic flow patterns generated during egomotion. In this study, we examine whether a simplified linear model based on the organization principles in tangential neurons can be used to estimate egomotion from the optic flow. We present a theory for the construction of an estimator consisting of a linear combination of optic flow vectors that incorporates prior knowledge about the distance distribution of the environment and about the noise and egomotion statistics of the sensor. The estimator is tested on a gantry carrying an omnidirectional vision sensor. The experiments show that the proposed approach leads to accurate and robust estimates of rotation rates, whereas translation estimates are of reasonable quality, albeit less reliable. }
}
-
Rainer W. Friedrich.
Odorant receptor make scents.
Nature,
430,
2004.
Keywords: sensory system,
olfaction.
| Comments: influence de la molecule receptrice des ligands odorants sur le fonctionnement du recepteur olfactif. |
@Article{frie_04,
author = {Friedrich, Rainer W.},
title = {Odorant receptor make scents},
journal = {Nature},
year = {2004},
volume = {430},
comments = {influence de la molecule receptrice des ligands odorants sur le fonctionnement du recepteur olfactif.},
rating = {C},
keywords = {sensory system, olfaction}
}
-
Emmanuel Guigon.
Interpolation and extrapolation in human behavior..
Journal of Cognitive Neuroscience,
16(3),
2004.
Keywords: motor control,
sensorimotor.
| Abstract: Unlike most artificial systems, the brain is able to face situations that it has not learned or even encountered before. This ability is not in general echoed by the properties of most neural networks. Here, we show that neural computation based on least-square error learning between populations of intensitycoded neurons can explain interpolation and extrapolation capacities of the nervous system in sensorimotor and cognitive tasks. We present simulations for function learning experiments, auditory visual behavior, and visuomotor transformations. The results suggest that induction in human behavior, be it sensorimotor or cognitive, could arise from a common neural associative mechanism. |
| Comments: un papier consternant sur la généralisation à partir d'associations établies sur un ensemble d'exemples. Des références sur la littérature illuminée de ce domaine. |
@Article{guig_04,
author = {Guigon, Emmanuel},
title = {Interpolation and extrapolation in human behavior.},
journal = {Journal of Cognitive Neuroscience},
year = {2004},
volume = {16},
number = {3},
abstract = {Unlike most artificial systems, the brain is able to face situations that it has not learned or even encountered before. This ability is not in general echoed by the properties of most neural networks. Here, we show that neural computation based on least-square error learning between populations of intensitycoded neurons can explain interpolation and extrapolation capacities of the nervous system in sensorimotor and cognitive tasks. We present simulations for function learning experiments, auditory visual behavior, and visuomotor transformations. The results suggest that induction in human behavior, be it sensorimotor or cognitive, could arise from a common neural associative mechanism.},
comments = {un papier consternant sur la généralisation à partir d'associations établies sur un ensemble d'exemples. Des références sur la littérature illuminée de ce domaine.},
url = {http://www.snv.jussieu.fr/guigon/data/pdf/Guigon04.pdf},
rating = {D},
keywords = {motor control, sensorimotor}
}
-
Hiroyuki Kajimoto,
Naoki Kawakami,
Susumu Tachi,
and Masahiko Inami.
SmartTouch: Electric Skin to touch the untouchable.
IEEE Computer Graphics and Applications,
pp 36-42,
january 2004.
Keywords: sensory substitution,
perception.
| Abstract: A haptic augmented reality system, SmartTouch, is composed of a thin electro-tactile display and a sensor mounted on the skin. The sensed information is converted to tactile sensation through electrical stimulation. Thus, the wearer not only makes physical contact with an object, but also can touch surface information of any modality, even those that are ordinarily nontouchable. The SmartTouch prototype has optical sensors. The authors endeavored to realize the tactile perception of luminance information, which was achieved by imitating the sensory nerve activity with electrical stimulation. |
| Comments: Un dispositif de stimulation tactile éléctrique très fin, utilisé pour la conversion visuo-tactile mais avec le capteur au bout des doigts, et une tentative de traduire les couleurs via trois types de recépteurs tactiles. |
@Article{kaji_04,
author = {Kajimoto, Hiroyuki and Kawakami, Naoki and Tachi, Susumu and Inami, Masahiko},
title = {{S}mart{T}ouch: Electric Skin to touch the untouchable},
journal = {{IEEE} Computer Graphics and Applications},
year = {2004},
month = {january},
pages = {36-42},
abstract = {A haptic augmented reality system, SmartTouch, is composed of a thin electro-tactile display and a sensor mounted on the skin. The sensed information is converted to tactile sensation through electrical stimulation. Thus, the wearer not only makes physical contact with an object, but also can touch surface information of any modality, even those that are ordinarily nontouchable. The SmartTouch prototype has optical sensors. The authors endeavored to realize the tactile perception of luminance information, which was achieved by imitating the sensory nerve activity with electrical stimulation.},
comments = {Un dispositif de stimulation tactile éléctrique très fin, utilisé pour la conversion visuo-tactile mais avec le capteur au bout des doigts, et une tentative de traduire les couleurs via trois types de recépteurs tactiles.},
url = {http://csdl.computer.org/comp/mags/cg/2004/01/g1036abs.htm},
rating = {C},
keywords = {sensory substitution, perception}
}
-
Rolf G. Kuehni.
Variability in Unique Hue Selection: A Surprising Phenomenon.
Color Research & Application,
29(2):158-162,
2004.
Keywords: color,
hues,
review.
| Abstract: Data from ten different experiments involving nearly 600 observers of determination of unique hues are compared. Six experiments involve determination using spectral lights; two use desaturated monitor colors, and the remaining two use color chip sets. Except for unique green, color chips result in narrower ranges of results than spectral lights. Unique green has a surprisingly large range of variation in both spectral light and color chip experiments, followed by red. Comparison of spectral light data indicates that one observer's unique blue can be another's unique green and vice versa, and the same for yellow and green. This finding raises significant questions for color appearance and color space/difference models, as well as philosophy of color. |
| Comments: Bonne review des différentes expé sur les uniques hues, en lumières spectrales, moniteurs, et surfaces. La variabilité inter-sujets est énorme et inexplicable pour le moment. |
@Article{kueh_04,
author = {Kuehni, Rolf G.},
title = {Variability in Unique Hue Selection: A Surprising Phenomenon},
journal = {Color Research & Application},
year = {2004},
volume = {29},
number = {2},
pages = {158-162},
abstract = {Data from ten different experiments involving nearly 600 observers of determination of unique hues are compared. Six experiments involve determination using spectral lights; two use desaturated monitor colors, and the remaining two use color chip sets. Except for unique green, color chips result in narrower ranges of results than spectral lights. Unique green has a surprisingly large range of variation in both spectral light and color chip experiments, followed by red. Comparison of spectral light data indicates that one observer's unique blue can be another's unique green and vice versa, and the same for yellow and green. This finding raises significant questions for color appearance and color space/difference models, as well as philosophy of color.},
comments = {Bonne review des différentes expé sur les uniques hues, en lumières spectrales, moniteurs, et surfaces. La variabilité inter-sujets est énorme et inexplicable pour le moment. },
keywords = {color, hues, review},
rating = {C},
url = {http://www3.interscience.wiley.com/cgi-bin/abstract/107561399/ABSTRACT}
}
-
Barry B. Lee.
Paths to colour in the retina.
Clinical and experimental optometry,
87:239-248,
july 2004.
Keywords: review,
color,
retina.
| Abstract: The description of colour pathways in the primate retina has become clearer within the past decade. This review summarises current views on the pathways subserving colour vision in the primate retina, beginning in the receptors and outer retina and leading to the mechanisms in the inner retina that add and subtract the receptor signals. Although the main features of colour pathways are now well-defined, there remains uncertainty about some of the wiring details. In particular, the question of how much connectional specificity is present is unresolved. Finally, means of isolating these pathways by psychophysical tests are considered; some current tests are likely to be less specific than hoped. |
| Comments: essentiellement neuronal, sans trop de compromission psycho |
@Article{lee_04,
author = {Lee, Barry B.},
title = {Paths to colour in the retina},
journal = {Clinical and experimental optometry},
year = {2004},
volume = {87},
pages = {239-248},
month = {july},
abstract = {The description of colour pathways in the primate retina has become clearer within the past decade. This review summarises current views on the pathways subserving colour vision in the primate retina, beginning in the receptors and outer retina and leading to the mechanisms in the inner retina that add and subtract the receptor signals. Although the main features of colour pathways are now well-defined, there remains uncertainty about some of the wiring details. In particular, the question of how much connectional specificity is present is unresolved. Finally, means of isolating these pathways by psychophysical tests are considered; some current tests are likely to be less specific than hoped.},
comments = {essentiellement neuronal, sans trop de compromission psycho},
url = {http://www.optometrists.asn.au/ceo/backissues/vol87/no4/3272},
rating = {C},
keywords = {review, color, retina}
}
-
Max Lungarella,
Giorgio Metta,
Rolf Pfeifer,
and Giulio Sandini.
Developmental robotics: a survey.
Connection Science,
0(0):1-40,
2004.
Keywords: developmental robotics,
artificial intelligence.
| Abstract: Developmental robotics is an emerging field located at the intersection of robotics, cognitive science and developmental sciences. This paper elucidates the main reasons and key motivations behind the convergence of fields with seemingly disparate interests, and shows why developmental robotics might prove to be beneficial for all fields involved. The methodology advocated is synthetic and two-pronged: on the one hand, it employs robots to instantiate models originating from developmental sciences; on the other hand, it aims to develop better robotic systems by exploiting insights gained from studies on ontogenetic development. This paper gives a survey of the relevant research issues and points to some future research directions. |
| Comments: Review des recherches menées à ce jour en robotique développementale et épigénétique. Seulement intéressant pour les références |
@ARTICLE{lung_04,
AUTHOR = {Lungarella, Max and Metta, Giorgio and Pfeifer, Rolf and Sandini, Giulio},
TITLE = {Developmental robotics: a survey},
JOURNAL = {Connection Science},
volume = {0},
number = {0},
YEAR = {2004},
pages = {1-40},
abstract = {Developmental robotics is an emerging field located at the intersection of robotics, cognitive science and developmental sciences. This paper elucidates the main reasons and key motivations behind the convergence of fields with seemingly disparate interests, and shows why developmental robotics might prove to be beneficial for all fields involved. The methodology advocated is synthetic and two-pronged: on the one hand, it employs robots to instantiate models originating from developmental sciences; on the other hand, it aims to develop better robotic systems by exploiting insights gained from studies on ontogenetic development. This paper gives a survey of the relevant research issues and points to some future research directions.},
comments = {Review des recherches menées à ce jour en robotique développementale et épigénétique. Seulement intéressant pour les références},
rating = {D},
url = {http://www.liralab.it/papers/papers/Papers_04/conn_science04.pdf},
keywords = {developmental robotics, artificial intelligence}
}
-
Susana Martinez-Conde,
Stephen L. Macknik,
and David H. Hubel.
The role of fixational eye movements in visual perception.
Nature Reviews Neuroscience,
5:229-240,
2004.
Keywords: vision,
perception,
saccades,
eye,
review.
| Abstract: Our eyes continually move even while we fix our gaze on an object. Although these fixational eye movements have a magnitude that should make them visible to us, we are unaware of them. If fixational eye movements are counteracted, our visual perception fades completely as a result of neural adaptation. So, our visual system has a built-in paradox we must fix our gaze to inspect the minute details of our world, but if we were to fixate perfectly, the entire world would fade from view. Owing to their role in counteracting adaptation, fixational eye movements have been studied to elucidate how the brain makes our environment visible. Moreover, because we are not aware of these eye movements, they have been studied to understand the underpinnings of visual awareness. Recent studies of fixational eye movements have focused on determining how visible perception is encoded by neurons in various visual areas of the brain. |
@Article{mart_mack_hube_04,
author = {Martinez-Conde, Susana and Macknik, Stephen L. and Hubel, David H.},
title = {The role of fixational eye movements in visual perception},
journal = {Nature Reviews Neuroscience},
year = {2004},
volume = {5},
pages = {229-240},
comments = {},
rating = {C},
url = {http://www.nature.com/nrn/journal/v5/n3/pdf/nrn1348.pdf},
keywords = {vision, perception, saccades, eye, review},
abstract = {Our eyes continually move even while we fix our gaze on an object. Although these fixational eye movements have a magnitude that should make them visible to us, we are unaware of them. If fixational eye movements are counteracted, our visual perception fades completely as a result of neural adaptation. So, our visual system has a built-in paradox we must fix our gaze to inspect the minute details of our world, but if we were to fixate perfectly, the entire world would fade from view. Owing to their role in counteracting adaptation, fixational eye movements have been studied to elucidate how the brain makes our environment visible. Moreover, because we are not aware of these eye movements, they have been studied to understand the underpinnings of visual awareness. Recent studies of fixational eye movements have focused on determining how visible perception is encoded by neurons in various visual areas of the brain.}
}
-
Jude F. Mitchell,
Gene R. Stoner,
and John H. Reynolds.
Object-based attention determines dominance in binocular rivalry.
Nature,
429:410-413,
2004.
Keywords: binocular rivalry,
awareness,
attention,
NCC.
| Abstract: A question of long-standing interest to philosophers, psychologists and neuroscientists is how the brain selects which signals enter consciousness1,2. Binocular rivalry and attention both involve selection of visual stimuli, but affect perception quite differently. During binocular rivalry, awareness alternates between two different stimuli presented to the two eyes. In contrast, attending to one of two different stimuli impairs discrimination of the ignored stimulus, but without causing it to disappear from consciousness. Here we show that despite this difference, attention and rivalry rely on shared object-based selection mechanisms. We cued attention to one of two superimposed transparent surfaces and then deleted the image of one surface from each eye, resulting in rivalry. Observers usually reported seeing only the cued surface. They were also less accurate in judging unpredictable changes in the features of the uncued surface. Our design ensured that selection of the cued surface could not have resulted from spatial, ocular or feature-based mechanisms. Rather, attention was drawn to one surface, and this caused the other surface to be perceptually suppressed during rivalry. These results raise the question of how object representations compete during these two forms of perceptual selection, even as the features of those objects change unpredictably over time. |
| Comments: La dominance dans la rivalité sensorielle est donné à l'objet qui était sujet de l'attention. La rivalité semble de plus pouvoir concerner différentes propriétés et pas seulement la présence visuelle (mouvement, direction, etc) |
@Article{mitc_ston_reyn_04,
author = {Mitchell, Jude F. and Stoner, Gene R. and Reynolds, John H.},
title = {Object-based attention determines dominance in binocular rivalry},
journal = {Nature},
year = {2004},
volume = {429},
pages = {410-413},
abstract = {A question of long-standing interest to philosophers, psychologists and neuroscientists is how the brain selects which signals enter consciousness1,2. Binocular rivalry and attention both involve selection of visual stimuli, but affect perception quite differently. During binocular rivalry, awareness alternates between two different stimuli presented to the two eyes. In contrast, attending to one of two different stimuli impairs discrimination of the ignored stimulus, but without causing it to disappear from consciousness. Here we show that despite this difference, attention and rivalry rely on shared object-based selection mechanisms. We cued attention to one of two superimposed transparent surfaces and then deleted the image of one surface from each eye, resulting in rivalry. Observers usually reported seeing only the cued surface. They were also less accurate in judging unpredictable changes in the features of the uncued surface. Our design ensured that selection of the cued surface could not have resulted from spatial, ocular or feature-based mechanisms. Rather, attention was drawn to one surface, and this caused the other surface to be perceptually suppressed during rivalry. These results raise the question of how object representations compete during these two forms of perceptual selection, even as the features of those objects change unpredictably over time.},
comments = {La dominance dans la rivalité sensorielle est donné à l'objet qui était sujet de l'attention. La rivalité semble de plus pouvoir concerner différentes propriétés et pas seulement la présence visuelle (mouvement, direction, etc)},
keywords = {binocular rivalry, awareness, attention, NCC},
url = {http://www.salk.edu/faculty/reynolds/msr.pdf},
rating = {B}
}
-
Alva Noë and Evan Thompson.
Are there neural correlates of consciousness?.
Journal of Consciousness Studies,
11(1):3-28,
2004.
| Abstract: In the past decade, the notion of a neural correlate of consciousness (or NCC) has become a focal point for scientific research on consciousness (Metzinger, 2000a). A growing number of investigators believe that the first step toward a science of consciousness is to discover the neural correlates of consciousness. Indeed, Francis Crick has gone so far as to proclaim that \u2018we need to discover the neural correlates of consciousness. For this task the primate visual system seems especially attractive. No longer need one spend time attempting to endure the tedium of philosophers perpetually disagreeing with each other. Consciousness is now largely a scientific problem\u2019 (Crick, 1996, p. 486). Yet the question of what it means to be a neural correlate of consciousness is actually far from straightforward, for it involves fundamental empirical, methodological, and philosophical issues about the nature of consciousness and its relationship to the brain. Even if one assumes, as we do, that states of consciousness causally depend on states of the brain, one can nevertheless wonder in what sense there is, or could be, such a thing as a neural correlate of consciousness. |
| Comments: Critique du réductionnisme, sur la base: NCC = hypothèse du substrat neuronal mininal dont le contenu match le contenu de l'expérience, or il y a une différence entre content matchting et content agreement (identitité totale et identité partielle). En particulier, discussion détaillée sur la rivalité binoculaire. Les auteurs défendent l'idée que le contenu de la conscience est "experiental", i.e. dépend nécessairement d'un point de vue, ce qui n'est pas "accessible" aux neurones. En d'autres termes, la perception est de trop haut niveau pour être réduit à une doctrine du neurone. Discussion sur la doctrine internaliste et les illusions |
@Article{noe_thom,
author = {Noë, Alva and Thompson, Evan},
title = {Are there neural correlates of consciousness?},
journal = {Journal of Consciousness Studies},
year = {2004},
volume = {11},
number = {1},
pages = {3-28},
abstract = {In the past decade, the notion of a neural correlate of consciousness (or NCC) has become a focal point for scientific research on consciousness (Metzinger, 2000a). A growing number of investigators believe that the first step toward a science of consciousness is to discover the neural correlates of consciousness. Indeed, Francis Crick has gone so far as to proclaim that \u2018we need to discover the neural correlates of consciousness. For this task the primate visual system seems especially attractive. No longer need one spend time attempting to endure the tedium of philosophers perpetually disagreeing with each other. Consciousness is now largely a scientific problem\u2019 (Crick, 1996, p. 486). Yet the question of what it means to be a neural correlate of consciousness is actually far from straightforward, for it involves fundamental empirical, methodological, and philosophical issues about the nature of consciousness and its relationship to the brain. Even if one assumes, as we do, that states of consciousness causally depend on states of the brain, one can nevertheless wonder in what sense there is, or could be, such a thing as a neural correlate of consciousness.},
comments = {Critique du réductionnisme, sur la base: NCC = hypothèse du substrat neuronal mininal dont le contenu match le contenu de l'expérience, or il y a une différence entre content matchting et content agreement (identitité totale et identité partielle). En particulier, discussion détaillée sur la rivalité binoculaire. Les auteurs défendent l'idée que le contenu de la conscience est "experiental", i.e. dépend nécessairement d'un point de vue, ce qui n'est pas "accessible" aux neurones. En d'autres termes, la perception est de trop haut niveau pour être réduit à une doctrine du neurone. Discussion sur la doctrine internaliste et les illusions},
url = {http://people.ucsc.edu/~anoe/NCC.pdf},
keyworkds = {philosophy, NCC, binocular rivalry, consciousness, perception},
rating = {C}
}
-
Thomas J. Palmeri and Isabel Gauthier.
Visual object understanding.
Nature Reviews Neuroscience,
5:291-304,
2004.
Keywords: objects,
vision,
categorization,
objects.
| Abstract: Visual object understanding includes processes at the nexus of visual perception and visual cognition. A traditional approach separates questions that are more associated with perception how are objects represented by high-level vision from questions that are more associated with cognition how are objects identified, categorized and remembered. However, to understand the bridge between perception and cognition, it is fruitful to abandon any sharp distinction between perceptual and cognitive aspects of visual object understanding. We provide a selective review of research from both the Object Recognition and Perceptual Categorization literatures, highlighting relevant behavioural, neuropsychological, neurophysiological and theoretical research into the representations and processes that underlie visual object understanding in humans and primates. |
| Comments: Review de deux domaines duaux: la reconnaissance d'objets (axé perception visuelle) et la catégorisation perceptuelle (axé structures conceptuelles). Questions soulevées: comments sont représenté les objets, quels sont les mécanismes computationnels, est-ce orienté prototype, example, our règles, est-ce modulaire, est-ce holistique? |
@Article{palm_gaut_04,
author = {Palmeri, Thomas J. and Gauthier, Isabel},
title = {Visual object understanding},
journal = {Nature Reviews Neuroscience},
year = {2004},
volume = {5},
pages = {291-304},
abstract = {Visual object understanding includes processes at the nexus of visual perception and visual cognition. A traditional approach separates questions that are more associated with perception how are objects represented by high-level vision from questions that are more associated with cognition how are objects identified, categorized and remembered. However, to understand the bridge between perception and cognition, it is fruitful to abandon any sharp distinction between perceptual and cognitive aspects of visual object understanding. We provide a selective review of research from both the Object Recognition and Perceptual Categorization literatures, highlighting relevant behavioural, neuropsychological, neurophysiological and theoretical research into the representations and processes that underlie visual object understanding in humans and primates.},
comments = {Review de deux domaines duaux: la reconnaissance d'objets (axé perception visuelle) et la catégorisation perceptuelle (axé structures conceptuelles). Questions soulevées: comments sont représenté les objets, quels sont les mécanismes computationnels, est-ce orienté prototype, example, our règles, est-ce modulaire, est-ce holistique?},
keywords = {objects, vision, categorization},
rating = {C},
keywords = {objects},
url = {http://www.psy.vanderbilt.edu/faculty/palmeri/vita/vou.pdf}
}
-
Elena Pasquinelli.
The awareness of perceptual illusions. Problems of coherence and dynamic knowledge..
Philosophical Psychology,
2004.
Keywords: awareness,
perception,
philosophy.
| Comments: On peut distinguer les illusions perceptives comme un désaccord avec la réalité physique, et lesconflits internes qui sont des problèmes de cohérence de l'interprétation du percept. Une liste informative d'illusions. |
@Article{pasq_04,
author = {Pasquinelli, Elena},
title = {The awareness of perceptual illusions. Problems of coherence and dynamic knowledge.},
journal = {Philosophical Psychology},
year = {2004},
abstract = {},
comments = {On peut distinguer les illusions perceptives comme un désaccord avec la réalité physique, et lesconflits internes qui sont des problèmes de cohérence de l'interprétation du percept. Une liste informative d'illusions.},
rating = {D},
keywords = {awareness, perception, philosophy}
}
-
David Philipona,
J. Kevin O'Regan,
Jean-Pierre Nadal,
and Olivier J.-M.D. Coenen.
Perception of the structure of the physical world using unknown sensors and effectors.
Advances in Neural Information Processing Systems,
15,
2004.
Keywords: sensorimotor.
| Abstract: Is there a way for an algorithm linked to an unknown body to infer by itself information about this body and the world it is in? Taking the case of space for example, is there a way for this algorithm to realize that its body is in a three dimensional world? Is it possible for this algorithm to discover how to move in a straight line? And more basically: do these questions make any sense at all given that the algorithm only has access to the very high-dimensional data consisting of its sensory inputs and motor outputs? We demonstrate in this article how these questions can be given a positive answer. We show that it is possible to make an algorithm that, by analyzing the law that links its motor outputs to its sensory inputs, discovers information about the structure of the world regardless of the devices constituting the body it is linked to. We present results from simulations demonstrating a way to issue motor orders resulting in fundamental movements of the body as regards the structure of the physical world. |
@ARTICLE{phil_04,
AUTHOR = {Philipona, David and O'Regan, J. Kevin and Nadal, Jean-Pierre and Coenen, Olivier J.-M.D.},
TITLE = {Perception of the structure of the physical world using unknown sensors and effectors},
JOURNAL = {Advances in Neural Information Processing Systems},
YEAR = {2004},
volume = {15},
rating = {C},
url = {http://books.nips.cc/papers/files/nips16/NIPS2003_CS06.pdf},
keywords = {sensorimotor},
abstract = {Is there a way for an algorithm linked to an unknown body to infer by itself information about this body and the world it is in? Taking the case of space for example, is there a way for this algorithm to realize that its body is in a three dimensional world? Is it possible for this algorithm to discover how to move in a straight line? And more basically: do these questions make any sense at all given that the algorithm only has access to the very high-dimensional data consisting of its sensory inputs and motor outputs? We demonstrate in this article how these questions can be given a positive answer. We show that it is possible to make an algorithm that, by analyzing the law that links its motor outputs to its sensory inputs, discovers information about the structure of the world regardless of the devices constituting the body it is linked to. We present results from simulations demonstrating a way to issue motor orders resulting in fundamental movements of the body as regards the structure of the physical world.}
}
-
Yoichi Sugita.
Experience in early infancy is indispensable for color perception.
Current biology,
14:1267-1271,
2004.
Keywords: color constancy,
color,
perception,
ontogenesis.
| Abstract: Early visual experience is indispensable to shape the maturation of cortical circuits during development. Monocular deprivation in infancy, for instance, leads to an irreversible reduction of visually driven activity in the visual cortex through the deprived eye and a loss of binocular depth perception. It was tested whether or not early experience is also necessary for color perception. Infant monkeys were reared for nearly a year in a separate room where the illumination came from only monochromatic lights. After extensive training, they were able to perform color matching. But, their judgment of color similarity was quite different from that of normal animals. Furthermore, they had severe deficits in color constancy; their color vision was very much wavelength dominated, so they could not compensate for the changes in wavelength composition. These results indicate that early visual experience is also indispensable for normal color perception. |
| Comments: une expé limite, tant moralement que scientifiquement. impact médiatique. |
@Article{sugi_04,
author = {Sugita, Yoichi},
title = {Experience in early infancy is indispensable for color perception},
journal = {Current biology},
year = {2004},
volume = {14},
pages = {1267-1271},
comments = {une expé limite, tant moralement que scientifiquement. impact médiatique.},
rating = {D},
url = {http://linkinghub.elsevier.com/retrieve/pii/S0960982204005123},
keywords = {color constancy, color, perception, ontogenesis},
abstract = {Early visual experience is indispensable to shape the maturation of cortical circuits during development. Monocular deprivation in infancy, for instance, leads to an irreversible reduction of visually driven activity in the visual cortex through the deprived eye and a loss of binocular depth perception. It was tested whether or not early experience is also necessary for color perception. Infant monkeys were reared for nearly a year in a separate room where the illumination came from only monochromatic lights. After extensive training, they were able to perform color matching. But, their judgment of color similarity was quite different from that of normal animals. Furthermore, they had severe deficits in color constancy; their color vision was very much wavelength dominated, so they could not compensate for the changes in wavelength composition. These results indicate that early visual experience is also indispensable for normal color perception.}
}
-
Emanuel Todorov.
Optimality principles in sensorimotor control.
Nature Neuroscience,
7(9):907-915,
2004.
Keywords: neuroscience,
motor control,
internal models,
feedback,
minimum variance.
| Abstract: The sensorimotor system is a product of evolution, development, learning and adaptation which work on different time scales to improve behavioral performance. Consequently, many theories of motor function are based on optimal performance : they quantify task goals as cost functions, and apply the sophisticated tools of optimal control theory to obtain detailed behavioral predictions. The resulting models, although not without limitations, have explained more empirical phenomena than any other class. Traditional emphasis has been on optimizing desired movement trajectories while ignoring sensory feedback. Recent work has redefined optimality in terms of feedback control laws, and focused on the mechanisms that generate behavior online. This approach has allowed researchers to fit previously unrelated concepts and observations into what may become a unified theoretical framework for interpreting motor function. At the heart of the framework is the relationship between high-level goals, and the real-time sensorimotor control strategies most suitable for accomplishing those goals. |
| Comments: review des théories classiques du controle moteur, et des propriétés standard du controle humain à expliquer. naif sur plusieurs points. |
@Article{todo_04,
author = {Todorov, Emanuel},
title = {Optimality principles in sensorimotor control},
journal = {Nature Neuroscience},
year = {2004},
volume = {7},
number = {9},
pages = {907-915},
comments = {review des théories classiques du controle moteur, et des propriétés standard du controle humain à expliquer. naif sur plusieurs points.},
keywords = {neuroscience, motor control, internal models, feedback, minimum variance},
rating = {C},
url = {http://cogsci.ucsd.edu/~todorov/papers/optimality.pdf},
abstract = {The sensorimotor system is a product of evolution, development, learning and adaptation which work on different time scales to improve behavioral performance. Consequently, many theories of motor function are based on optimal performance : they quantify task goals as cost functions, and apply the sophisticated tools of optimal control theory to obtain detailed behavioral predictions. The resulting models, although not without limitations, have explained more empirical phenomena than any other class. Traditional emphasis has been on optimizing desired movement trajectories while ignoring sensory feedback. Recent work has redefined optimality in terms of feedback control laws, and focused on the mechanisms that generate behavior online. This approach has allowed researchers to fit previously unrelated concepts and observations into what may become a unified theoretical framework for interpreting motor function. At the heart of the framework is the relationship between high-level goals, and the real-time sensorimotor control strategies most suitable for accomplishing those goals.}
}
-
Damien Woods and Thomas J. Naughton.
An optical model of computation.
Theoretical Computer Science,
x(x):xx,
2004.
Keywords: computation,
light.
| Abstract: We prove computability and complexity results for an original model of computation called the continuous space machine. Our model is inspired by the theory of Fourier optics. We prove our model can simulate analog recurrent neural networks, thus establishing a lower bound on its computational power. We also define a $\Theta(\log_{2}n)$ unordered search algorithm with our model. Keywords: continuous space machine, unconventional model of computation, analog computation, optical computing, computability, computational complexity, analog recurrent neural network, Fourier transform, binary search, unordered search |
| Comments: intéressant pour réfléchir sur un équivalent continu de la machine de Turing. mais il s'agit d'une adaptation plutôt que d'une refonte de l'idée. |
@Article{wood_naug_04,
author = {Woods, Damien and Naughton, Thomas J.},
title = {An optical model of computation},
journal = {Theoretical Computer Science},
year = {2004},
volume = {x},
number = {x},
pages = {xx},
comments = {intéressant pour réfléchir sur un équivalent continu de la machine de Turing. mais il s'agit d'une adaptation plutôt que d'une refonte de l'idée.},
rating = {C},
url = {http://www.cs.may.ie/~tnaughton/pubs/varasto/WN2004p.pdf},
keywords = {computation, light},
abstract = {We prove computability and complexity results for an original model of computation called the continuous space machine. Our model is inspired by the theory of Fourier optics. We prove our model can simulate analog recurrent neural networks, thus establishing a lower bound on its computational power. We also define a $\Theta(\log_{2}n)$ unordered search algorithm with our model. Keywords: continuous space machine, unconventional model of computation, analog computation, optical computing, computability, computational complexity, analog recurrent neural network, Fourier transform, binary search, unordered search}
}
