Perception & Awareness Donders Institute Logo
Rob van Lier, PhD
Associate Professor


Publications etc.

<<A few illusions>>

PhD projects


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a double neon color

Dancing Shapes Con-fusing Contours catching patches rivalry Afterimage filling-in face

One eye knows what the other eye sees...

or: Intra- and interocular colour-specific activation during dichoptic suppression (Van Lier & De Weert, 2003)

A new psychophysical method, based on dichoptic suppression, is introduced to study intra- and interocular colour activations. An experiment shows that activation of a specific colour in one eye may cancel suppression of the same colour in the ipsi-lateral eye or in the contra-lateral eye at non-corresponding retinal locations.A control experiment shows that the effect is not due to an overall response bias to the activated colour.

The colour-specific intra- and interocular activation might play a role in various colour-based percepts known in the literature. 

The upper row shows an example of a stimulus; the lower row shows a typical corresponding percept (see here for further explanation).