侧侧内区域的神经活动和空间注意力
James W Bisley1, Michael E Goldberg
1Laboratory of Sensorimotor Research, National Eye Institute, Bethesda, MD 20892, USA. jwb2003@columbia.edu
概括
侧侧内皮区域 (LIP) 中的神经活动反映了视野中注意力的动态. 然而,在特定位置的活动并不保证注意力或眼睛的运动到那个地方.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 视觉注意力 视觉注意力
背景情况:
- 表面皮质在视觉注意力方面发挥着作用.
- 额头皮层,特别是侧面内侧层区域 (LIP) 对视觉注意力的确切贡献仍然不清楚.
研究的目的:
- 研究视觉注意力的神经机制.
- 为了将LIP中的神经元活动与子的注意力表现相关联.
主要方法:
- 在子中追踪注意力.
- 在LIP中关联神经元活动与注意力的行为测量.
主要成果:
- 整个视野中的LIP中的整体活动捕捉了注意力的空间和时间动态.
- 在特定视野位置的活动反映了注意力优先级,但不能预测实际的注意力或眼睛运动.
结论:
- 在动态控制视觉注意力方面,LIP起着至关重要的作用.
- 由LIP神经元发出的注意优先级信号不仅仅决定了注意力或眼睛运动的行为部署.
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