Perceptual differentiation of sequential visual patterns
Perceptual differentiation of sequential visual patterns
复制标题
连续视觉模式的感知分化
DOI：
10.3758/bf03212857
复制
发表时间：
1972
期刊：
影响因子：
--
通讯作者：
H. Bell
中科院分区：
文献类型：
--
作者：
J. Lappin;H. Bell
Two experiments examined the ability to perceive a difference between two sequentially presented visual patterns. An otherwise undetectable camouflaged target form was made visible by the sequential presentation of two random-contoured patterns that were identical except for the presence of the camouflaged form in one of the patterns. Experiment 1 found that form identifications became less accurate as a function of the luminance and contours of an intervening stimulus pattern and as a function of the ISI, falling to nearly a chance level by only 30 msec. Experiment 2 illustrated contrasts in stimulus conditions and in temporal characteristics of the differentiation and the integration of sequential visual patterns. Differentiation apparently differs from integration in the following respects: (1) it requires the sequential presentation of correlated patterns, in contrast to the uncorrelated patterns that produce masking when integrated; (2) it has a maximal effect with sequential presentation at ISI=0 rather than with simultaneous presentation; and (3) it operates over a shorter range of ISI than does integration.
