视野
计算机科学
视觉注意
过程(计算)
领域(数学)
视觉处理
注意力控制
N2pc
功率(物理)
心理学
认知心理学
感知
认知
神经科学
数学
操作系统
物理
量子力学
纯数学
作者
Charles W. Eriksen,Yei-Yu Yeh
标识
DOI:10.1037//0096-1523.11.5.583
摘要
This research investigated whether attentional resources can be simultaneously allocated to several locations in a visual display, whether the mode of processing (serial or parallel) can be switched within a trial, and the nature of the costs when attentional resources are concentrated on an invalid location. Subjects were required to determine which of two target letters was present in eight-letter circular displays. In precue conditions, a primary and a secondary target location were designated 150 ms before target onset by an indicator that varied in validity. In the control conditions no cue was provided. A second experiment verified several assumptions that had been made in interpreting the data of Experiment 1. Modifications in Jonides' (1983) two-process model were suggested in terms of a zoom lens model of attentional resources. Instead of two alternative processing modes, attentional resources are conceived as capable of distribution over the visual field, but with low resolving power, or as continuously constricting to small portions of the visual field with a concomitant increase in processing power.
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