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ACQUISITION OF MATCHING‐TO‐SAMPLE PERFORMANCE IN RATS USING VISUAL STIMULI ON NOSE KEYS
Author(s) -
Iversen Iver H.
Publication year - 1993
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.1993.59-471
Subject(s) - stimulus (psychology) , matching (statistics) , discrimination learning , computer science , psychology , pattern recognition (psychology) , artificial intelligence , audiology , speech recognition , communication , cognitive psychology , statistics , mathematics , medicine
Steady and blinking white lights were projected on three nose keys arranged horizontally on one wall. The procedure was a conditional discrimination with a sample stimulus presented on the middle key and comparison stimuli on the side keys. Three rats acquired simultaneous “identity matching.” Accuracy reached 80% in about 25 sessions and 90% or higher after about 50 sessions. Acquisition progressed through several stages of repeated errors, alternation between comparison keys from trial to trial, preference of specific keys or stimuli, and a gradual lengthening of strings of consecutive trials with correct responses. An analysis of the acquisition curves for individual trial configurations indicated that the matching‐to‐sample performance possibly consisted of separate discriminations.