(NB. The timing in these web demonstrations does not accurately reflect the timing used in the experiments we performed. In the real experiments, the duration of the mudplashes or flicker was generally 80 ms, much shorter than what will usually occur on a web demonstration. However this is not critical for the effect to occur, so long as the mudsplashes or flicker appear all at once. If they are appearing progressively, then please try a faster computer or faster internet connection).
EXAMPLES OF CHANGES WITH MUDSPLASHES
(every few seconds a "mudsplash" will appear. Can you say what else
is changing in the picture?)
airplane
traffic
(also
cf this demo of the dangers of head-up displays in driving!)
diner à deux
THE SAME CHANGES WITHOUT THE MUDSPLASHES ARE PERFECTLY OBVIOUS:
airplane - no splash
traffic - no splash
diner à
deux - no splash
EXAMPLES USING FLICKER INSTEAD OF MUDSPLASHES
Notre Dame
Parking
Verre de lait
For further web demonstrations using flicker see
Rensink,
O'Regan & Clark, 1997
THE SAME EXAMPLES WITHOUT FLICKER ARE STRIKING:
Notre Dame - no flicker
Parking - no flicker
Verre de lait - no flicker
EXAMPLES OF CHANGES WITH MASKING RECTANGLE
(After about 5 seconds a masking rectangle will appear and disappear.
On the first change you will probably not be able to say what changed behind
the rectangle)
Mosque
Helicopter
Hockey
final version: August 2, 1998
