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INTERTRIAL‐INTERVAL EFFECTS ON SENSITIVITY (A′) AND RESPONSE BIAS (B″) IN A TEMPORAL DISCRIMINATION BY RATS
Author(s) -
Raslear Thomas G.,
Shurtleff David,
Simmons Larry
Publication year - 1992
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.1992.58-527
Subject(s) - reinforcement , interval (graph theory) , audiology , psychology , sensitivity (control systems) , developmental psychology , mathematics , social psychology , medicine , combinatorics , electronic engineering , engineering
Killeen and Fetterman's (1988) behavioral theory of animal timing predicts that decreases in the rate of reinforcement should produce decreases in the sensitivity (A′) of temporal discriminations and a decrease in miss and correct rejection rates (decrease in bias toward “long” responses). Eight rats were trained on a 10‐ versus 0.1‐s temporal discrimination with an intertrial interval of 5 s and were subsequently tested on probe days on the same discrimination with intertrial intervals of 1, 2.5, 5, 10, or 20 s. The rate of reinforcement declined for all animals as intertrial interval increased. Although sensitivity (A′) decreased with increasing intertrial interval, all rats showed an increase in bias to make long responses.