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Fixational eye movements and motion perception.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Murakami, Ikuya |
| Copyright Year | 2006 |
| Abstract | Small eye movements are necessary for maintained visibility of the static scene, but at the same time they randomly oscillate the retinal image, so the visual system must compensate for such motions to yield the stable visual world. According to the theory of visual stabilization based on retinal motion signals, objects are perceived to move only if their retinal images make spatially differential motions with respect to some baseline movement probably due to eye movements. Motion illusions favoring this theory are demonstrated, and psychophysical as well as brain-imaging studies on the illusions are reviewed. It is argued that perceptual stability is established through interactions between motion-energy detection at an early stage and spatial differentiation of motion at a later stage. As such, image oscillations originating in fixational eye movements go unnoticed perceptually, and it is also shown that image oscillations are, though unnoticed, working as a limiting factor of motion detection. Finally, the functional importance of non-differential, global motion signals are discussed in relation to visual stability during large-scale eye movements as well as heading estimation. |
| Starting Page | 193 |
| Ending Page | 209 |
| Page Count | 17 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://invibe.net/biblio_database_dyva/woda/data/att/6d85.file.05189.pdf |
| PubMed reference number | 17010711v1 |
| Volume Number | 154 |
| Journal | Progress in brain research |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Cumulative Trauma Disorders Eye Abnormalities Eye Movements Illusions Limited stage (cancer stage) Motion Movement Physical object Retina retinal image |
| Content Type | Text |
| Resource Type | Article |
