Abstract
Discriminative control of lever choice and response patterning by internal states was demonstrated in rats trained on a two lever mult FR DRL schedule of food reinforcement. Saline was administered on days when the FR component was programmed and amphetamine when DRL was in effect. On subsequent extinction sessions, the animals responded on the lever and at rates which were appropriate to the compound administered.
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1. Partially supported by Grant MH 12959 from the National Institute of Mental Health.
2. Formerly Houston State Psychiatric Institute.
3. National Institute of Mental Health Predoctoral Trainee, NIMH Grant MH-6960-07 to the Department of Psychology, University of Houston.
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Harris, R.T., Balster, R.L. Discriminative control by d1-amphetamine and saline of lever choice and response patterning. Psychon Sci 10, 105–106 (1968). https://doi.org/10.3758/BF03331429
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DOI: https://doi.org/10.3758/BF03331429