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Long-term sensorimotor adaptation in the ocular following system of primates.


ABSTRACT: The sudden movement of a wide-field image leads to a reflexive eye tracking response referred to as short-latency ocular following. If the image motion occurs soon after a saccade the initial speed of the ocular following is enhanced, a phenomenon known as post-saccadic enhancement. We show in macaque monkeys that repeated exposure to the same stimulus regime over a period of months leads to progressive increases in the initial speeds of ocular following. The improvement in tracking speed occurs for ocular following with and without a prior saccade. As a result of the improvement in ocular following speeds, the influence of post-saccadic enhancement wanes with increasing levels of training. The improvement in ocular following speed following repeated exposure to the same oculomotor task represents a novel form of sensori-motor learning in the context of a reflexive movement.

SUBMITTER: Hietanen MA 

PROVIDER: S-EPMC5714349 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Long-term sensorimotor adaptation in the ocular following system of primates.

Hietanen Markus A MA   Price Nicholas S C NSC   Cloherty Shaun L SL   Hadjidimitrakis Kostas K   Ibbotson Michael R MR  

PloS one 20171204 12


The sudden movement of a wide-field image leads to a reflexive eye tracking response referred to as short-latency ocular following. If the image motion occurs soon after a saccade the initial speed of the ocular following is enhanced, a phenomenon known as post-saccadic enhancement. We show in macaque monkeys that repeated exposure to the same stimulus regime over a period of months leads to progressive increases in the initial speeds of ocular following. The improvement in tracking speed occurs  ...[more]

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