病前注意力取决于眼睛运动方向,与V1皮层放大有关
Nina M Hanning1,2,3, Marc M Himmelberg4,2, Marisa Carrasco4,2
1Department of Psychology, New York University, New York, New York 10003 hanning.nina@gmail.com.
概括
通常在眼睛运动之前增强视力,在上升的萨卡德之前,令人惊的是没有注意力. 这种缺少突发前注意力可能与大脑如何处理上视野有关.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 视觉科学 视觉科学 视觉科学
背景情况:
- 斜视眼动将信息带到焦点,用于高敏度的处理.
- 事前注意力转移到即将到来的固定点,增强眼睛运动之前的感知.
- 在整合视觉信息的过程中,和注意力之间的联系被认为是至关重要的.
研究的目的:
- 为了调查前的注意力是否会随着的方向而变化.
- 为了检查萨卡德方向对视觉表现和神经处理的影响.
- 探索潜在的神经机制,潜在的方向差异在前的注意力.
主要方法:
- 在固定和saccade准备过程中测量了对比反应功能.
- 评估了前性注意力的行为相关性,包括视觉表现.
- 分析了与主要视觉皮层表面积相关的个体差异.
主要成果:
- 在上行萨卡德之前,在群体层面上,典型的前萨卡德注意力益处是缺席的.
- 一些个人甚至在上升saccades之前展现了表演成本.
- 降低了对上行萨卡德的预萨卡德灵敏度,与更大的上垂直午线V1表示相关.
结论:
- 萨卡德前的注意力并非在所有萨卡德方向均地应用.
- 在上升的萨卡德之前缺乏前阿卡德注意力可能涉及神经资源分配的补偿机制.
- 需要进一步的研究,以了解在上升时的感知连续性和准确的准.
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