| Philipona, D., O'Regan, J.K., Nadal, J.-P. Is there something out there ? Inferring space from sensorimotor dependencies Neural Computation 2003 (15)9 [pdf] |
| This letter suggests that in biological organisms, the perceived structure of reality, in particular the notions of body, environment, space, object, and attribute, could be a consequence of an effort on the part of brains to account for the dependency between their inputs and their outputs in terms of a smallnumberof parameters.To validate this idea, a procedure is demonstrated whereby the brain of a (simulated) organism with arbitrary input and output connectivity can deduce the dimensionality of the rigid group of the space underlying its input-output relationship, that is, the dimension of what the organism will call physical space. |
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| Philipona, D., O'Regan, J.K., Nadal, J.-P. , Coenen, O.J.-M. Perception of the structure of the physical world using unknown sensors and effectors Advances in Neural Information Processing Systems 2004 (15) [pdf] |
| 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. |
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| Philipona, D., O'Regan, J.K. AS Suppleance Arobase 2004 |
| Szwed, M., Bagdasarian, K., Ahissar, E. Active encoding of vibrissal touch Neuron 2003 (40):621-630 |
| Philipona, D., O'Regan, J.K. Agir dans l'espace 2004 |
| Robles-De-La-Torre, G., Hayward, V. Force can overcome object geometry in the perception of shape through active touch Nature 2000 (412):445-448 |
| Luciani, A. Interaction as exchanged actions and their role in visual and auditory feedbacks 2004 |
| Guigon, E. Interpolation and extrapolation in human behavior. Journal of Cognitive Neuroscience 2004 (16)3 |
| Philipona, D., O'Regan, J.K., Nadal, J.-P. Is there something out there ? Inferring space from sensorimotor dependencies Neural Computation 2003 (15)9 |
| Max Planck Institute for Biological Cybernetics |
| Motor Control Laboratory, McGill |
| Motor Control Laboratory, U. Western Ontario |
| Philipona, D., O'Regan, J.K., Nadal, J.-P. , Coenen, O.J.-M. Perception of the structure of the physical world using unknown sensors and effectors Advances in Neural Information Processing Systems 2004 (15) |
| Barsalou, L.W. Perceptual symbols systems Behavioral and Brain Sciences 1999 (22):577-660 |
| Philipona, D., O'Regan, J.K. Philosophie de la nature aujourd'hui? 2004 |
| Daeyeol, L. Rochester's course of sensory and motor neuroscience |
| Sensorimotor Control Lab, UCL |
| Chiel, H.J., Beer, R. The brain has a body: adaptative behavior emerges from interactions of nervous system, body and environment Trends in Neuroscience 1997 (20):553-557 |
| Frisoli, A. The human-robot sensorimotor coupling: an engineering perspective 2004 |