Perceptual learning and the discrimination of wines

Abstract

Ss were required to judge whether two successive tastes of wine were the same or different. Following a pretest with no knowledge of results, Ss were divided into three groups for further training. Group I received information on correctness of the judgment and learned an identification number for each of the five wines, Group II received only knowledge whether judgments were correct, and Group III received no information. The posttest, like the pretest, gave no knowledge of results. Ss improved significantly on the posttest compared to the pretest, but training condition had no significant effect. The major improvement was in correctly judging that two wine samples were the same. © 1966, Psychonomic Press. All rights reserved.