| Perception of visual motion coherence by rats and mice. | |
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MedLine Citation:
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PMID: 16647739 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The coherence thresholds to discriminate the direction of motion in random-dot kinematograms were measured in rats and mice. Performance was best in the rats when dot displacement from frame-to-frame was about 2 degrees, and frame duration was less than 100 ms. Mice had coherence thresholds similar to those of rats when tested at the same step size and frame duration. Although the lowest thresholds in the rats and mice occasionally reached human levels, average rodent values ( approximately 25%) were 2-3 times higher than those of humans. These data indicate that the rodent and primate visual systems are similar in that both have local motion detectors and a system for extracting global motion from a noisy signal. |
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Authors:
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R M Douglas; A Neve; J P Quittenbaum; N M Alam; G T Prusky |
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Publication Detail:
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Type: Journal Article Date: 2006-05-02 |
Journal Detail:
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Title: Vision research Volume: 46 ISSN: 0042-6989 ISO Abbreviation: Vision Res. Publication Date: 2006 Sep |
Date Detail:
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Created Date: 2006-07-03 Completed Date: 2006-09-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0417402 Medline TA: Vision Res Country: England |
Other Details:
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Languages: eng Pagination: 2842-7 Citation Subset: IM |
Affiliation:
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Department of Ophthalmology and Visual Sciences, University of British Columbia, 2550 Willow Street, Vancouver, BC, Canada. robert.douglas@ubc.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Discrimination (Psychology) / physiology Female Humans Mice / physiology* Mice, Inbred C57BL Motion Perception / physiology* Pattern Recognition, Visual / physiology Photic Stimulation / methods Psychophysics Rats / physiology* Rats, Long-Evans Sensory Thresholds / physiology Species Specificity Visual Cortex / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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