Evidence for a selective process during perception of tachistoscopically presented stimuli.

Abstract

S was to report the set of stimuli specified in a "critical" instruction in a place specified in a "neutral" instruction. In one condition the "critical" instruction was given 2 sec. before the stimulus field and the "neutral" instruction simultaneously with the field; a second condition reversed this order. It was found that a selective process which increased the accuracy of report was able to operate during perception on the basis of class but was not able to operate on the basis of position or color. Further work is needed to show whether this process acted in perception itself or in the learning process. (PsycINFO Database Record (c) 2006 APA, all rights reserved)