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Individual differences in visual comparison processes

LYNN A. COOPER 0 1 0 This research was funded primarily by National Science Foun dation Grant GB-31971X to Roger N. Shepard and also in part by National Institute of Mental Health Small Grant MH ... should be sent to: Lynn A. Cooper, Department of Psychology , C-009 , University of California , San Diego, La Jolla, California 92093 1 University ofCalifornia , San Diego, La Jolla, California 92093 Two

Demonstration of a mental analog of an external rotation

LYNN A. COOPER 0 1 0 This research was supported primarily by National Science Foundation Grant GB-31971X to Roger N. Shepard and also in part by National Institute of Mental Health Small Grant MH ... . Requests for reprints should be addressed to: Lynn A. Cooper. Department of Psychology C-009. University of California. San Diego. La Jolla. California 92093 1 University of California , San Diego, La Jolla

Visual comparison processes: Identity and similarity decisions

In the first experiment, in which two successively presented free-form visual patterns varied in their similarity to each other, subjects had to decide, in one condition, if the patterns were “identical” and in two other conditions if the patterns were “similar.” Qualitative individual differences in the effect of similarity on the time required to make a decision were found in the ...

Fequency-specific color adaptation in the human visual system

Following prolonged exposure to two vertical grating patterns differing in spatial frequency—one pattern illuminated in green light alternated with the other pattern illuminated in red light—human observers will sometimes report seeing desaturated complementary colors when presented with a neutrally illuminated test field consisting of adjacent halves of the two adapting gratings. ...