Interocular induction of illusory size perception |
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Authors: | Chen Song D Samuel Schwarzkopf Geraint Rees |
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Institution: | (1) UCL Institute of Cognitive Neuroscience, University College London, 17 Queen Square, WC1N 3AR London, UK;(2) Wellcome Trust Centre for Neuroimaging, University College London, 12 Queen Square, WC1N 3BG London, UK |
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Abstract: | Background The perceived size of objects not only depends on their physical size but also on the surroundings in which they appear. For
example, an object surrounded by small items looks larger than a physically identical object surrounded by big items (Ebbinghaus
illusion), and a physically identical but distant object looks larger than an object that appears closer in space (Ponzo illusion).
Activity in human primary visual cortex (V1) reflects the perceived rather than the physical size of objects, indicating an
involvement of V1 in illusory size perception. Here we investigate the role of eye-specific signals in two common size illusions
in order to provide further information about the mechanisms underlying illusory size perception. |
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Keywords: | |
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