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Eye position encoding in the macaque ventral intraparietal area (VIP)

NeuroReport, ISSN: 0959-4965, Vol: 10, Issue: 4, Page: 873-878
1999
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Article Description

Many neurons in area VIP encode the location of visual stimuli in a non- retinocentric frame of reference. In this context the question needed to be addressed whether the underlying coordinate transformation of the incoming visual signals could be generated within area VIP or whether this information would have to arrive from other areas. We tested 74 neurons in area VIP of two awake monkeys for an influence of eye position while animals performed a fixation task. More than half of the neurons (40/74) revealed an eye position effect. At the population level, however, this effect was balanced out. We suggest that local connections within area VIP could be used to generate an encoding of visual information in a non-retinocentric frame of reference.

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