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  • Title: Ethanol, pentobarbital, and chlordiazepoxide effects in squirrel monkeys responding under fixed-ratio food presentation and stimulus-shock termination schedules.
    Author: Katz JL, Barrett JE.
    Journal: Psychopharmacology (Berl); 1978 Mar 01; 56(2):153-5. PubMed ID: 417366.
    Abstract:
    Ethanol, pentobarbital, and chlordiazepoxide were administered to squirrel monkeys responding under a multiple schedule comprised of two fixed-ratio 100-response schedules (FR 100). Under one FR schedule, the one-hundredth response produced food. Under the other schedule, the one-hundredth response terminated the prevailing stimuli and accompanying schedule of electric shock presentation (stimulus-shock termination). Comparable high response rates were maintained under the two schedules. Each drug produced dose-related decreases in response rates. With all three drugs the effects on all aspects of performance were quantitatively similar for both stimulus-shock termination and food-maintained responding.
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