Retinotopic activity in V1 reflects the perceived not the retinal size of an afterimage.

Irene Sperandio, Philippe Chouinard, Melvyn Goodale

Research output: Contribution to journalArticlepeer-review


An afterimage looks larger when one fixates on a distant than on a closer surface. We show that the retinotopic activity in the primary visual cortex (V1) associated with viewing an afterimage is modulated by perceived size, even when the size of the retinal image remains constant. This suggests that V1 has an important role in size constancy when the viewing distance of the stimulus changes.
Original languageEnglish
JournalNature Neuroscience
Publication statusPublished - 2012

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