Two-choice discrimination learning as a function of stimulus and event probabilities.

1 January 1968

journal article
Published by American Psychological Association (APA) in Journal of Experimental Psychology

Vol. 77 (3, Pt.1) , 453-459
https://doi.org/10.1037/h0025940

Abstract

180 STUDENTS WERE RUN IN A 2-CHOICE DISCRIMINATION TASK WITH EVENT 1 PROBABILITY (PI) = .85 FOR ALL SS. THE GROUPS DIFFERED WITH RESPECT TO EVENT 2 PROBABILITY (PI; .85, .5, .15) AND STIMULUS PROBABILITY (BETA; .75, .5, .25). THE PROBABILITY OF PREDICTING EVENT 1 ON A TYPE 1 TRIAL-P(A-T1)-WAS LOWEST AT PI = .5, THE EFFECT BEING MOST PRONOUNCED AT BETA = .25. MARKED OVERSHOOTING OCCURRED ON BOTH TYPE 1 AND TYPE 2 TRIALS IN SEVERAL GROUPS. THE EFFECTS OF RESPONSE-EVENT OUTCOMES ON SUBSEQUENT RESPONDING VARIED OVER VALUES OF PI. THESE RESULTS ARE DISCUSSED WITH RESPECT TO ATKINSON'S OBSERVING RESPONSE MODEL. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

Keywords

This publication has 0 references indexed in Scilit: