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Ferrets as a Model for Higher-Level Visual Motion Processing
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DOI：10.1016/j.cub.2018.11.017.png)
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摘要
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Ferrets are a major developmental animal model due to their early parturition. Here we show for the first time that ferrets could be used to study development of higher-level visual processes previously identified in primates. In primates, complex motion processing involves primary visual cortex (V1), which generates local motion signals, and higher-level visual area MT, which integrates these signals over more global spatial regions. Our data show similar transformations in motion signals between ferret V1 and higher-level visual area PSS, located in the posterior bank of the suprasylvian sulcus. We found that PSS neurons, like MT neurons, were tuned for stimulus motion and showed strong suppression between opposing direction inputs. Most strikingly, PSS, like MT, exhibited robust global motion signals when tested with coherent plaids-the classic test for motion integration across multiple moving elements. These PSS responses were described well by computational models developed for MT. Our findings establish the ferret as a strong animal model for development of higher-level visual processing.
Keyword:
LATERAL GENICULATE-NUCLEUS
DIRECTION SELECTIVITY
ORIENTATION SELECTIVITY
CONTRAST SENSITIVITY
RECEPTIVE-FIELDS
STRIATE CORTEX
AREA MT
MACAQUE
PERCEPTION
NEURONS
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期刊
IF:
7.5
论文数:
2.2W
被引数:
7.8W
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