학술논문

Long-term sensorimotor adaptation in the ocular following system of primates.
Document Type
Article
Source
PLoS ONE. 12/4/2017, Vol. 12 Issue 12, p1-15. 15p.
Subject
*SACCADIC eye movements
*SENSORIMOTOR integration
*EYE tracking
*MOTOR learning
*COGNITIVE psychology
*PRIMATES as laboratory animals
Language
ISSN
1932-6203
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. [ABSTRACT FROM AUTHOR]