ORIENTING OF ATTENTION
ORIENTING OF ATTENTION
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DOI:
10.1080/00335558008248231
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发表时间:
1980-01-01
影响因子:
1.7
通讯作者:
POSNER, MI
中科院分区:
文献类型:
--
作者:
POSNER, MI
Bartlett viewed thinking as a high level skill exhibiting ballistic properties that he called its point of no return. One aspect of cognition was studied through the use of a simple model task in which human subjects are asked to commit attention to a position in visual space other than fixation. This instruction is executed by orienting a covert (attentional) mechanism that seems sufficiently time-locked to external events that its trajectory can be traced across the visual field in terms of momentary changes in the efficiency of detecting stimuli. A comparison of results obtained with alert monkeys, brain injured and normal human subjects shows the relationship of this covert system to saccadic eye movements and to various brain systems controlling perception and motion. In accordance with Bartlett''s insight, the possibility is explored that similar principles apply to orienting of attention toward sensory input and orienting to the semantic structures used in thinking.