Integration of shape information across saccades in apparent motion displays

D. Melcher, A. Fracasso, A. Caramazza

Research output: Contribution to conferencePosterOther research output

Abstract

Real-world perception is typically trans-saccadic: we see the same object across multiple fixations. Yet saccadic eye movements can dramatically change the location in which an object is projected onto the retina. One possible mechanism of visual stability might be trans-saccadic remapping of objects. We tested whether object feature information, or rather just a pointer to object location, is remapped across saccadic eye movements. We found that transformational apparent motion, in which an object is seen to change shape and even move in three dimensions during the motion trajectory, continues across saccades. Moreover, spatiotopic apparent motion was stronger than retinotopic apparent motion. These findings suggest that shape information is indeed integrated across saccades. Trans-saccadic transformational apparent motion provides a new tool to measure the object-based matching of features, such as shape, across saccades.
Original languageEnglish
Pages176
Number of pages1
Publication statusPublished - 2009
EventUnknown event - Asilomar, USA
Duration: 1 Jan 2009 → …

Conference

ConferenceUnknown event
CityAsilomar, USA
Period1/01/09 → …

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