Abstract
Fixational eye movements can rapidly shift the retinal image, but typically remain unnoticed. We identify and simulate a model mechanism for the suppression of erroneous motion signals under fixational eye movements. This mechanism exploits the non-linearities common to many classes of large retinal ganglion cells in the mammalian retina, and negates the need for extra-retinal signals or explicit gaze information. When tested using natural images undergoing simulated fixational eye movements, our model successfully distinguishes "real world" motion from retinal motion induced by eye movements. In addition, this model suggests a possible explanation for several fixational eye movement related visual illusions such as the Ouchi-Spillmann and "Out-of-focus" illusions. (C) 2015 Elsevier Ltd. All rights reserved.
Item Type: | Journal article |
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Faculties: | Biology > Department Biology II > Neurobiology |
Subjects: | 500 Science > 570 Life sciences; biology |
ISSN: | 0042-6989 |
Language: | English |
Item ID: | 48771 |
Date Deposited: | 27. Apr 2018, 08:16 |
Last Modified: | 04. Nov 2020, 13:26 |