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A Model of Basal Ganglia in Saccade Generation

机译:扫视产生中的基底神经节模型

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摘要

We model the role played by the Basal Ganglia (BG) in generation of voluntary saccadic eye movements. Performance of the model is evaluated on a set of tasks such as feature and conjunction searches, directional selectivity and a successive saccade task. Behavioral phenomena such as independence of search time on number of distracters in feature search and linear increase in search time with number of distracters in conjunction search are observed. It is also seen that saccadic reaction times are longer and search efficiency is impaired on diminished BG contribution, which corroborates with reported data obtained from Parkinson's Disease (PD) patients.
机译:我们模拟了基底神经节(BG)在自愿性眼跳运动产生中的作用。模型的性能是根据一组任务进行评估的,例如特征和联合搜索,方向选择性和连续扫视任务。观察到行为现象,例如特征搜索中搜索时间与干扰物数量无关,以及伴随联合搜索中干扰物数量的搜索时间线性增加。还可以看到,眼跳反应时间更长,BG贡献减少,搜索效率也受到损害,这与从帕金森氏病(PD)患者获得的报道数据相符。

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