Abstract

A modification of the Bidwell apparatus was used to investigate whether color responses altered by hypnotic instructions had a sensory or a report locus. This apparatus produces colors which are either complementary to or are enhanced positives of colors inserted. Hypnotized subjects were shown colors which they were told would be presented and were asked to report what they saw. Responses were recorded to gray and colored presentations. The results obtained could be parsimoniously explained only by assigning a report locus to the altered responses of these subjects as well as to those of a subject for whom hypnotic instructions seemed to have induced color blindness.

© 1961 Optical Society of America

Errata: Locus of Hypnotically Induced Changes in Color Vision Responses

Israel Goldiamond and Leslie F. Malpass
J. Opt. Soc. Am. 52(1) 103-103 (1962)

Two-Color Threshold as Test of Color Vision*

Robert M. Boynton and Mahlon Wagner
J. Opt. Soc. Am. 51(4) 429-440 (1961)

Electrical Responses of the Human Eye to Colored Flickering Light*†

Allen Manuel Granda
J. Opt. Soc. Am. 51(6) 648-654 (1961)

Luminosity Functions of Normal, Deuteranomalous, and Deuteranopic Subjects as Determined by Absolute Threshold and CFF Measurements*

William E. Collins
J. Opt. Soc. Am. 51(2) 202-206 (1961)

Opponent Chromatic Induction: Experimental Evaluation and Theoretical Account*

Dorothea Jameson and Leo M. Hurvich
J. Opt. Soc. Am. 51(1) 46-53 (1961)