DOI: 10.1073/pnas.1821866116
论文题名: Evidence for an attentional priority map in inferotemporal cortex
作者: Stemmann H. ; Freiwald W.A.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2019
卷: 116, 期: 47 起始页码: 23797
结束页码: 23805
语种: 英语
英文关键词: Attention
; Cognition
; Electrophysiology
Scopus关键词: article
; attention
; controlled study
; electrophysiology
; functional magnetic resonance imaging
; human
; human experiment
; inferior temporal cortex
; motion
; nerve cell
英文摘要: From incoming sensory information, our brains make selections according to current behavioral goals. This process, selective attention, is controlled by parietal and frontal areas. Here, we show that another brain area, posterior inferotemporal cortex (PITd), also exhibits the defining properties of attentional control. We discovered this area with functional magnetic resonance imaging (fMRI) during an attentive motion discrimination task. Single-cell recordings from PITd revealed strong attentional modulation across 3 attention tasks yet no tuning to task-relevant stimulus features, like motion direction or color. Instead, PITd neurons closely tracked the subject’s attention state and predicted upcoming errors of attentional selection. Furthermore, artificial electrical PITd stimulation controlled the location of attentional selection without altering feature discrimination. These are the defining properties of a feature-blind priority map encoding the locus of attention. Together, these results suggest area PITd, located strategically to gather information about object properties, as an attentional priority map. © 2019 National Academy of Sciences. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163600
Appears in Collections: 气候变化与战略
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作者单位: Stemmann, H., Institute for Brain Research and Center for Advanced Imaging, University of Bremen, Bremen, D-28334, Germany; Freiwald, W.A., Center for Brain, Minds and Machines (CBMM), Laboratory of Neural Systems, Rockefeller University, New York, NY 10065, United States
Recommended Citation:
Stemmann H.,Freiwald W.A.. Evidence for an attentional priority map in inferotemporal cortex[J]. Proceedings of the National Academy of Sciences of the United States of America,2019-01-01,116(47)