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09:47
A Method to Quantify Visual Information Processing in Children Using Eye Tracking
Published on: July 9, 2016
Nonretinotopic processing is related to postdictive size modulation in apparent motion
1Institute for Advanced Study, Kyushu University, 6-19-1, Hakozaki, Higashi Ward, Fukuoka 8128581, Japan. takkawabe@gmail.com
Attention, Perception & Psychophysics
|April 8, 2011
Summary
Motion signals influence perceived flash size. Apparent motion with shorter trailing bars made leading bars appear smaller, regardless of motion cues. This suggests postdictive size modulation linked to motion processing.
Area of Science:
- Visual perception
- Motion perception
- Psychophysics
Background:
- Perceived size can be influenced by various visual cues.
- Motion signals play a crucial role in visual processing and object perception.
Purpose of the Study:
- To investigate how trailing motion signals modulate the perceived size of a leading flash.
- To determine if motion correspondence based on retinal proximity or nonretinotopic information affects size perception.
Main Methods:
- Participants viewed two green bars followed by white bars of varying lengths and locations.
- Tasks involved discriminating the relative lengths of the green bars.
- Motion correspondence was manipulated using retinotopic and nonretinotopic cues.
Main Results:
- A green bar paired with a shorter white bar appeared smaller than a green bar paired with a longer white bar.
- This effect persisted whether motion correspondence was based on retinal proximity or nonretinotopic relative location.
- This indicates that motion processing influences perceived size.
Conclusions:
- Motion processing, including object updating and motion deblurring in a nonretinotopic frame, is linked to postdictive size modulation.
- The perceived size of a visual element can be influenced by subsequent motion information.
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