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STIMULUS GENERALIZATION AS A FUNCTION OF THE DELAY BETWEEN TRAINING AND TESTING PROCEDURES: A REEVALUATION 1
Author(s) -
Thomas David R.,
Burr D. E. Scott
Publication year - 1969
Publication title -
journal of the experimental analysis of behavior
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 61
eISSN - 1938-3711
pISSN - 0022-5002
DOI - 10.1901/jeab.1969.12-105
Subject(s) - reinforcement , extinction (optical mineralogy) , generalization , stimulus generalization , psychology , audiology , stimulus (psychology) , discrimination learning , developmental psychology , mathematics , social psychology , medicine , cognitive psychology , neuroscience , mathematical analysis , optics , physics , perception
Three groups of 12 pigeons each were trained to discriminate between lights of 550 mμ (S D ), correlated with 1‐min variable‐interval reinforcement and 570 mμ (S Δ ), correlated with extinction. Group A was tested for wavelength generalization in extinction 1 min after meeting the discrimination criterion; Group B was tested 24 hr later; Group C was tested 24 hr later after a 3‐min (reinforced) warm‐up with the S D . The post‐discrimination gradient of Group B was significantly flatter and showed significantly greater area shift than that of Groups A and C. The gradient of Group C was similar to that of Group A, indicating that the warm‐up eliminated the effect of the delay period.