Enhanced Neural Processing by Covert Attention only during Microsaccades Directed toward the Attended Stimulus

被引：71

作者：

Lowet, Eric ^{[1
,5
]}

Gomes, Bruno ^{[1
,2
,3
]}

Srinivasan, Karthik ^{[1
]}

Zhou, Huihui ^{[1
,4
]}

Schafer, Robert John ^{[1
]}

Desimone, Robert ^{[1
]}

机构：

[1] MIT, McGovern Inst Brain Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[2] Univ Fed Para, Inst Ciencias Biol, Belem, Para, Brazil

[3] Inst Tecnol Vale Desenvolvimento Sustentavel, Belem, Para, Brazil

[4] Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Guangdong, Peoples R China

[5] Boston Univ, Dept Biol, 5 Cummington St, Boston, MA 02215 USA

来源：

NEURON | 2018年 / 99卷 / 01期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

EYE-MOVEMENTS; SPATIAL ATTENTION; MECHANISMS; VISION; FREQUENCY; DYNAMICS; CORTEX; AREAS; OSCILLATIONS; INFORMATION;

D O I：

10.1016/j.neuron.2018.05.041

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Attention can be "covertly'' directed without eye movements; yet, even during fixation, there are continuous microsaccades (MSs). In areas V4 and IT of macaques, we found that firing rates and stimulus representations were enhanced by attention but only following a MS toward the attended stimulus. The onset of neural attentional modulations was tightly coupled to the MS onset. The results reveal a major link between the effects of covert attention on cortical visual processing and the overt movement of the eyes.

引用

页码：207 / +

页数：11

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