TY - JOUR
T1 - The effects of intertrial and feature-target intervals on operant serial feature negative discrimination learning
AU - Holland, Peter C.
AU - Morell, Javier R.
N1 - Funding Information:
This research was supported in part by grants from the National Science Foundation. We thank Marie Crock, David Jones, and Stephanie Nevels for technical assistance. Address reprint requests to Peter C. Holland at Department of Psychology: Experimental, Box 90086, Duke University, Durham, NC, 27708-0086, E-mail: pch@psych.duke.edu.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1996/2
Y1 - 1996/2
N2 - The effects of intertrial interval (ITI) and feature-target interval (FTI) on learning of discrete-trial operant serial feature negative (target+/feature → target-) discriminations were examined in two experiments with rats. In Experiment 1, the FTI was 10 s and the ITIs were 0.5, 1, 2, 4, or 8 min, and in Experiment 2, the FTI was 20 s and the ITIs were 1, 2, 4, 8, or 16 min. Discrimination performance was acquired more rapidly with longer ITIs and with shorter FTIs. The best predictor of acquisition performance was the ratio of ITI and FTI. This predictive relation broke down at the smallest ratio value, which did not support discrimination learning when the FTI was 20 s. Transfer of the feature's inhibitory control to a separately trained target cue was minimal in all conditions, regardless of ITI. The results were discussed in the context of occasion setting.
AB - The effects of intertrial interval (ITI) and feature-target interval (FTI) on learning of discrete-trial operant serial feature negative (target+/feature → target-) discriminations were examined in two experiments with rats. In Experiment 1, the FTI was 10 s and the ITIs were 0.5, 1, 2, 4, or 8 min, and in Experiment 2, the FTI was 20 s and the ITIs were 1, 2, 4, 8, or 16 min. Discrimination performance was acquired more rapidly with longer ITIs and with shorter FTIs. The best predictor of acquisition performance was the ratio of ITI and FTI. This predictive relation broke down at the smallest ratio value, which did not support discrimination learning when the FTI was 20 s. Transfer of the feature's inhibitory control to a separately trained target cue was minimal in all conditions, regardless of ITI. The results were discussed in the context of occasion setting.
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U2 - 10.1006/lmot.1996.0002
DO - 10.1006/lmot.1996.0002
M3 - Article
AN - SCOPUS:0030075219
SN - 0023-9690
VL - 27
SP - 21
EP - 42
JO - Learning and Motivation
JF - Learning and Motivation
IS - 1
ER -