单独的信号用于目标选择和运动规范在上层结体
1Howard Hughes Medical Institute and Department of Neurobiology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Science (New York, N.Y.)
|May 15, 1999
概括
大脑使用一个选择过程来选择萨卡德目标. 一些高级结膜神经元有助于选择目标,而另一些则在选择后准备眼睛运动.
科学领域:
- 神经科学是一个神经科学.
- 眼神运动研究研究.
- 视觉处理 视觉处理
背景情况:
- 大脑必须从多个选项中选择的目标.
- 上层结核 (SC) 神经元在跳动之前表现出活动,但它们的作用仍在争论中.
研究的目的:
- 为了研究SC神经元在萨卡德目标选择中的作用.
- 区分SC神经元的选择前和选择后功能.
主要方法:
- 在子中记录SC神经元活动,执行基于运动方向的动任务.
主要成果:
- 一些SC神经元表现出方向选择性视觉反应,表明在目标选择中的作用.
- 其他SC神经元似乎参与了选择后的萨卡德参数规范.
结论:
- 脊椎神经元在选择跳动目标和准备随后的眼动方面都发挥着不同的作用.
- 有证据表明,眼运动系统中的SC神经元具有双重功能.
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