Perception of visual motion coherence by rats and mice
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...
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| Veröffentlicht in: | Vision research (Oxford) 2006-09, Vol.46 (18), p.2842-2847 |
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| container_issue | 18 |
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| container_title | Vision research (Oxford) |
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| creator | Douglas, R.M. Neve, A. Quittenbaum, J.P. Alam, N.M. Prusky, G.T. |
| description | 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 (∼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. |
| doi_str_mv | 10.1016/j.visres.2006.02.025 |
| format | Article |
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| source | MEDLINE; Elsevier ScienceDirect Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Animals Biological and medical sciences Discrimination (Psychology) - physiology Extrastriate cortex Female Fundamental and applied biological sciences. Psychology Humans Kinematograms Mice - physiology Mice, Inbred C57BL Motion Perception - physiology Pattern Recognition, Visual - physiology Perception Photic Stimulation - methods Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Psychophysics Random dot Rats - physiology Rats, Long-Evans Sensory Thresholds - physiology Species Specificity Vision Visual Cortex - physiology Visual water task |
| title | Perception of visual motion coherence by rats and mice |
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