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首页> 外文期刊>Journal of vision >Magnetic stimulation of frontal brain areas: visual working memory suffers, other forms of visual short-term memory not
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Magnetic stimulation of frontal brain areas: visual working memory suffers, other forms of visual short-term memory not

机译:磁刺激额脑区域:视觉工作记忆受损,其他形式的视觉短期记忆受损

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摘要

To guide our behavior in successful ways, we often need to rely on information that is no longer in view, but maintained in visual short-term memory (VSTM). According to recent insights, maintenance of information in VSTM can happen at multiple levels in the neural hierarchy; either low in primary visual cortex (iconic memory), intermediate in extrastriate visual cortex (fragile VSTM), or high in parietal and frontal cortex (working memory). Previously, we1 have shown that both iconic memory and fragile VSTM can be disrupted, while leaving working memory intact (by showing respectively light masks and pattern masks). Now, by delivering transcranial magnetic stimulation at the right dorsolateral prefrontal cortex (DLPFC) during stimulus maintenance, we show that working memory capacity can be reduced, while leaving fragile VSTM intact. This implies that VSTM stores at different levels of the neural hierarchy operate relatively independently from each other.
机译:为了成功地指导我们的行为,我们经常需要依赖不再可见但保留在视觉短期记忆(VSTM)中的信息。根据最近的见解,VSTM中的信息维护可以在神经层次结构的多个级别上进行。原发性视觉皮层(标志性记忆)低,外泌体皮层中度(脆弱的VSTM)或顶叶和额叶皮层(工作记忆)高。以前,我们已经表明,标志性内存和脆弱的VSTM都可以被破坏,同时保持工作内存完整(通过分别显示光掩模和图案掩模)。现在,通过在刺激维持过程中在右背外侧前额叶皮层(DLPFC)进行经颅磁刺激,我们显示可以减少工作记忆容量,同时保持脆弱的VSTM。这意味着在神经层次的不同级别上的VSTM存储彼此相对独立地运行。

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