脑电图解码揭示了引导空间注意力和编码到工作记忆的不同过程

IF 4.8 1区 心理学 Q1 PSYCHOLOGY, MULTIDISCIPLINARY
Psychological Science Pub Date : 2024-10-01 Epub Date: 2024-08-19 DOI:10.1177/09567976241263002
Henry M Jones, Gisella K Diaz, William X Q Ngiam, Edward Awh
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引用次数: 0

摘要

过去的研究表明,空间注意力与视觉工作记忆的存储之间存在密切关系。但是,空间注意力是否等同于工作记忆编码呢?在这里,我们追踪了空间注意力和工作记忆编码的脑电图(EEG)特征,同时在两项成人研究(N = 39; N = 33)中独立操纵了记忆项目的数量和注意力的空间范围。空间注意力的神经测量跟踪了被注意区域的位置和大小,而与编码到工作记忆中的单个项目的数量无关。同时,工作记忆中存储的项目数量的多元解码对空间注意力的广度和位置变化不敏感。最后,表象相似性分析为纯负荷信号提供了一致的证据,这种信号对存储项目的空间范围不敏感。因此,尽管空间注意是视觉工作记忆的持久伙伴,但它在功能上与工作记忆中个体化表征的选择和维持是分离的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electroencephalogram Decoding Reveals Distinct Processes for Directing Spatial Attention and Encoding Into Working Memory.

Past work reveals a tight relationship between spatial attention and storage in visual working memory. But is spatially attending an item tantamount to working memory encoding? Here, we tracked electroencephalography (EEG) signatures of spatial attention and working memory encoding while independently manipulating the number of memory items and the spatial extent of attention in two studies of adults (N = 39; N = 33). Neural measures of spatial attention tracked the position and size of the attended area independent of the number of individuated items encoded into working memory. At the same time, multivariate decoding of the number of items stored in working memory was insensitive to variations in the breadth and position of spatial attention. Finally, representational similarity analyses provided converging evidence for a pure load signal that is insensitive to the spatial extent of the stored items. Thus, although spatial attention is a persistent partner of visual working memory, it is functionally dissociable from the selection and maintenance of individuated representations in working memory.

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来源期刊
Psychological Science
Psychological Science PSYCHOLOGY, MULTIDISCIPLINARY-
CiteScore
13.30
自引率
0.00%
发文量
156
期刊介绍: Psychological Science, the flagship journal of The Association for Psychological Science (previously the American Psychological Society), is a leading publication in the field with a citation ranking/impact factor among the top ten worldwide. It publishes authoritative articles covering various domains of psychological science, including brain and behavior, clinical science, cognition, learning and memory, social psychology, and developmental psychology. In addition to full-length articles, the journal features summaries of new research developments and discussions on psychological issues in government and public affairs. "Psychological Science" is published twelve times annually.
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