期刊
NEURON
卷 58, 期 1, 页码 15-25出版社
CELL PRESS
DOI: 10.1016/j.neuron.2008.01.038
关键词
-
资金
- Howard Hughes Medical Institute Funding Source: Medline
- NCRR NIH HHS [RR-00166, P51 RR000166] Funding Source: Medline
- NEI NIH HHS [EY-11378, R01 EY017039, EY-15634, EY-014978, EY-11001, R37 EY005603, R01 EY011001, R01 EY011378, R24 EY015634, R01 EY005603, R01 EY014978, EY-05603] Funding Source: Medline
Where we allocate our visual spatial attention depends upon a continual competition between internally generated goals and external distractions. Recently it was shown that single neurons in the macaque lateral intraparietal area (LIP) can predict the amount of time a distractor can shift the locus of spatial attention away from a goal. We propose that this remarkable dynamical correspondence between single neurons and attention can be explained by a network model in which generically high-dimensional firing-rate vectors rapidly decay to a single mode. We find direct experimental evidence for this model, not only in the original attentional task, but also in a very different task involving perceptual decision making. These results confirm a theoretical prediction that slowly varying activity patterns are proportional to spontaneous activity, pose constraints on models of persistent activity, and suggest a network mechanism for the emergence of robust behavioral timing from heterogeneous neuronal Populations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据