Stimulus information and primate pattern discrimination: Simultaneous changes in positive and negative cue information

Abstract

The present research studied the effects for two-choice, discrete-trial, pattern-discrimination learning of changes in the stimulus-information content of both the positive and negative stimulus cues. The major findings suggest that, with experienced primates, there exists a relation between equal increments in positive and negative stimulus information and discrimination learning that is strikingly similar to the classical psychophysical relationship between stimulus intensity and JNDs.