心理学报2011，Vol.43Issue(9)：993-1001,9.DOI:10.3724/SP.J.1041.2011.00993
工作记忆中注意焦点转换的代偿机制——来自聋生和发音抑制的证据
The Compensatory Mechanism of Focus of Attention Switch in Working Memory: The Experimental Evidence from Deaf Students and Articulatory Suppression
摘要
Abstract
Focus of Attention (FOA) switch is one of fundamental executive functions in working memory. Previous results suggested that the visual-spatial sketch pad was recruited in attention switch of verbal working memory. In the present study, we examined the behavioral patterns of attention switch with the visual-spatial sketch pad when the phonological loop was suppressed by deaf students and articulatory suppression.By using "tri-count" task, we compared the performance of FOA switch between deaf students and hearing students (Experiment 1). The result showed the RT of FOA switch was longer than that of no switch both in the two groups. Compared with hearing students, the accuracy of switch task was lower; and the RT difference between switch and no-switch was shorter in deaf students. In addition, switch direction did not affect RT, but a significant interaction between switch direction and distance was found in deaf students. The RT of close switch is faster than that of far switch in downward switch, but the RT of close switch is slower than that of far switch in upward switch. We further compared the performance of attention switch between articulatory suppression group and no suppression group (Experiment 2). A similar but subtle different pattern was found between articulatory suppression group and deaf students.The current result suggested the central executive of working memory shows high flexibility. The FOA switch with the visual-spatial sketchpad can exhibit different pattern when the phonological loop has been suppressed. Comparing with the condition of the temporal suppression, functional compensation is observed in permanent suppression.关键词
注意焦点转换/工作记忆/语音回路/聋生/发音抑制Key words
focus of attention switch/ working memory/ phonological loop/ deaf student/ articulatory suppression分类
社会科学引用本文复制引用
宣宾,刘振会,张爱青,孙晓凯..工作记忆中注意焦点转换的代偿机制——来自聋生和发音抑制的证据[J].心理学报,2011,43(9):993-1001,9.基金项目
国家自然科学基金青年项目(30800297),属安徽师范大学学校心理学创新团队建设成果. （30800297）
