视觉工作记忆中注意模板的表征—来自EROS的证据

摘要/Abstract

摘要： 采用事件相关光信号技术，分析再认任务和搜索任务下脑区的动态激活，探讨视觉工作记忆中注意模板的表征机制。实验要求被试在记忆项目后，分别完成再认任务和搜索任务。结果发现，与再认任务相比，视觉搜索任务下记忆项诱发前额叶、枕叶更高程度的激活，且前额叶的激活增强早于枕叶。研究表明，与用于再认任务的普通记忆项相比，用于视觉搜索任务的注意模板的潜在表征机制可能是：先激活前额叶以增强注意控制，并对枕叶的活动加以调节，增强注意模板表征的复述。

关键词: 视觉工作记忆, 注意模板, 事件相关光信号

Abstract: The Event-related optical signal (EROS) technique was used in the present study to explore the mechanism of representing attention templates and ordinary working memory items in visual working memory. Participants were asked to perform a recognition task or a visual search task after finishing visual working memory representing tasks. The results showed that compared with the recognition task, the frontal cortex and occipital cortex were more active in the visual search task. Moreover, the increased activity in the frontal cortex was followed by the increased activity in the occipital cortex. These results suggest that, compared with ordinary working memory items (recognition targets), the underlying mechanism of representing attention templates (search targets) may be that it firstly enhances the activity in frontal cortex to facilitate the attentional control, and then modulates the activity in occipital cortex to promote rehearsal for attentional templates.

Key words: visual working memory, attention template, event-related optical signal

中图分类号:

B842

车晓玮, 王凯旋, 上官梦麒, 李寿欣. 视觉工作记忆中注意模板的表征—来自EROS的证据[J]. 心理与行为研究, 2020, 18(3): 297-303.

CHE Xiaowei, WANG Kaixuan, SHANGGUAN Mengqi, LI Shouxin. The Representation of Attention Template in Visual Working Memory: An EROS Study[J]. Studies of Psychology and Behavior, 2020, 18(3): 297-303.

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