Intra- and interocular colour-specific activation during dichoptic suppression

A new psychophysical method, based on dichoptic suppression, is introduced to study intra- and interocular colour activations. An experiment is performed which 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.