赛卡德前预览 形状 赛卡德后处理 更多 感知较差的地方
bioRxiv : the preprint server for biology
|June 9, 2023
概括
视觉系统在眼睛运动时调整周围视觉差异. 这种补偿优化了跨的信息处理,增强了视觉感知.
科学领域:
- 神经科学是一个神经科学.
- 视觉科学科学 视觉科学
- 感知 感知 感知 感知
背景情况:
- 外预览效应描述了后的外围目标的增强处理saccades.
- 周围视觉表现在视野中各不相同,在极角上有显著的不对称性.
研究的目的:
- 为了调查外周视觉中极角不对称性是否会影响外周视觉预览效应.
- 为了了解视觉系统如何弥补这些不对称性,在眼运动期间.
主要方法:
- 参与者在做一个saccade之前预览了枢纽位置的外围目标.
- 在预览和后冲击显示之间,目标定向发生了变化 (有效/无效预览).
- 调整了刺激对比度,以测量后阴定向歧视表现.
主要成果:
- 有效的预测显著改善了后动对比度灵敏度.
- 预览的好处与感知不对称相反,在上午线上最大,在水平午线上最小.
- 这表明视觉系统分配了差异重量以根据位置预览信息.
结论:
- 视觉系统通过调节预览信息的影响来弥补外围感知不对称性.
- 这种补偿机制优化了信息整合在saccades,适应方向眼动变化.
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