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适应和外源性注意力在早期视觉皮层中相互作用:TMS研究

Hsing-Hao Lee¹, Antonio Fernández¹, Marisa Carrasco^1,2

¹Department of Psychology, New York University, New York, NY 10003, USA.

|November 11, 2024

概括

视觉皮层的适应改变了非自愿注意力与跨磁刺激 (TMS) 相互作用的方式. 适应屏蔽了外来关注的TMS效应,揭示了早期视觉处理中的关键相互作用.

科学领域:

神经科学是一个神经科学.
视觉感知视觉感知视觉感知
认知心理学认知心理学

背景情况:

对早期视觉皮层的跨磁刺激 (TMS) 影响对比敏感性和注意力.
在V1/V2中适应,注意力和TMS之间的相互作用仍然不清楚.

研究的目的:

调查适应是否在针对V1/V2区域的TMS下调节外源注意力.
确定适应如何影响TMS对注意力驱动的对比度灵敏度变化的影响.

主要方法:

观察者进行了方向歧视任务,有或没有先前的适应.
在任务期间,TMS应用于V1/V2区域.
在受刺激区域及其对侧对称区域呈现刺激.
在适应和不适应的条件下评估性能,并在TMS中针对受照顾或无照顾的刺激.

主要成果:

在没有适应的情况下,TMS消除了注意力对对比度敏感性的影响,当准受理的刺激时.
在适应过程中,外源性注意力对表现进行了类似的调节,不管TMS是针对受照顾还是无照顾的刺激.
适应改变了TMS,注意力和对比度灵敏度之间的关系.

结论:

适应和注意力在早期视觉皮层 (V1/V2) 中相互作用.
适应有效地屏蔽了对外的注意力,以免在该地区受到TMS的调节效应.

关键词:

生物科学生物科学认知神经科学是一种认知神经科学.神经科学是一个神经科学.

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相关概念视频

Vision

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.