微刺激
神经科学
自上而下和自下而上的设计
心理学
感觉系统
感觉加工
过程(计算)
选择性注意
信息处理
认知心理学
认知科学
认知
计算机科学
刺激
操作系统
软件工程
作者
Farhan Baluch,Laurent Itti
标识
DOI:10.1016/j.tins.2011.02.003
摘要
Attention exhibits characteristic neural signatures in brain regions that process sensory signals. An important area of future research is to understand the nature of top-down signals that facilitate attentional guidance towards behaviorally relevant locations and features. In this review, we discuss recent studies that have made progress towards understanding: (i) the brain structures and circuits involved in attentional allocation; (ii) top-down attention pathways, particularly as elucidated by microstimulation and lesion studies; (iii) top-down modulatory influences involving subcortical structures and reward systems; (iv) plausible substrates and embodiments of top-down signals; and (v) information processing and theoretical constraints that might be helpful in guiding future experiments. Understanding top-down attention is crucial for elucidating the mechanisms by which we can filter sensory information to pay attention to the most behaviorally relevant events.
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