A neural theory of visual attention and short-term memory (NTVA)
A neural theory of visual attention and short-term memory (NTVA)
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DOI：
10.1016/j.neuropsychologia.2010.12.006
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发表时间：
2011-05-01
期刊：
影响因子：
2.6
通讯作者：
Kyllingsbaek, Soren
中科院分区：
文献类型：
--
作者：
Bundesen, Claus;Habekost, Thomas;Kyllingsbaek, Soren
本文综述了Bundesen，Habekost，and Kyllingsbaek（2005）提出的视觉注意和短时记忆的神经理论。在NTVA中，过滤（对象的选择）会改变代表对象的皮质神经元的数量，以便该数量随着对象的行为重要性而增加。另一种选择机制是分类（pigeonholing）（特征选择），它调整了编码特定特征的神经元的激活水平。通过这些机制，行为上重要的对象和特征可能会赢得竞争，成为编码到视觉短期记忆（VSTM）。VSTM系统被认为是一种反馈机制，它维持了赢得注意力竞争的神经元的活动。NTVA解释了人类表现（反应时间和错误率）中的广泛注意力效应以及灵长类视觉系统中单细胞放电率中观察到的广泛效应。(C)2010爱思唯尔有限公司保留所有权利。
The neural theory of visual attention and short-term memory (NTVA) proposed by Bundesen, Habekost, and Kyllingsbaek (2005) is reviewed. In NTVA,filtering (selection of objects) changes the number of cortical neurons in which an object is represented so that this number increases with the behavioural importance of the object. Another mechanism of selection, pigeonholing (selection of features), scales the level of activation in neurons coding for a particular feature. By these mechanisms, behaviourally important objects and features are likely to win the competition to become encoded into visual short-term memory (VSTM). The VSTM system is conceived as a feedback mechanism that sustains activity in the neurons that have won the attentional competition. NTVA accounts both for a wide range of attentional effects in human performance (reaction times and error rates) and a wide range of effects observed in firing rates of single cells in the primate visual system. (C) 2010 Elsevier Ltd. All rights reserved.