节律性β频率经颅磁刺激在人类右侧顶叶皮层增强视觉尺寸错觉。

IF 3.2 3区 心理学 Q1 PSYCHOLOGY, EXPERIMENTAL
Xue Han, Chao Wang, Lihong Chen
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引用次数: 0

摘要

有节奏的大脑活动被认为是视觉处理的结构。本研究通过经典的艾宾浩斯错觉和庞佐错觉研究了顶叶β振荡对情境依赖性视觉尺寸感知的因果关系。在每次试验中,有节奏的经颅磁刺激(TMS)在左侧或右侧顶叶上小叶上以5次脉冲的频率(20赫兹)进行。在刺激序列的最后一个脉冲之后,参与者立即看到了虚幻的配置,并执行了尺寸匹配任务。结果表明,相对于控制顶点刺激,右顶叶刺激显著增加了两种尺寸错觉的大小,而左顶叶刺激对错觉效果没有影响。此外,5 Hz的右顶叶经颅磁刺激未观察到刺激效果。这些发现清楚地证明了β振荡与认知表现实现的功能相关性,支持了顶叶皮层对视觉大小错觉处理的因果贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Rhythmic beta-frequency TMS over human right parietal cortex strengthens visual size illusions.

Rhythmic brain activity has been proposed to structure visual processing. Here we investigated the causal contributions of parietal beta oscillations to context-dependent visual size perception, which is indicated by the classic Ebbinghaus and Ponzo illusions. On each trial, rhythmic transcranial magnetic stimulation (TMS) was applied over the left or right superior parietal lobule in a train of five pulses at beta frequency (20 Hz). Immediately after the last pulse of the stimulation train, participants were presented with the illusory configuration, and performed a size-matching task. The results revealed that right parietal stimulation significantly increased the magnitudes of both size illusions relative to control vertex stimulation, whereas the illusion effects were unaffected with left parietal stimulation. Moreover, the stimulation effect was not observed with right parietal TMS at theta frequency (5 Hz). The findings clearly demonstrate the functional relevance of beta oscillations for the implementation of cognitive performance, supporting the causal contribution of parietal cortex to the processing of visual size illusions.

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来源期刊
CiteScore
6.70
自引率
2.90%
发文量
165
期刊介绍: The journal provides coverage spanning a broad spectrum of topics in all areas of experimental psychology. The journal is primarily dedicated to the publication of theory and review articles and brief reports of outstanding experimental work. Areas of coverage include cognitive psychology broadly construed, including but not limited to action, perception, & attention, language, learning & memory, reasoning & decision making, and social cognition. We welcome submissions that approach these issues from a variety of perspectives such as behavioral measurements, comparative psychology, development, evolutionary psychology, genetics, neuroscience, and quantitative/computational modeling. We particularly encourage integrative research that crosses traditional content and methodological boundaries.
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