Defensive burying following injections of cholecystokinin, bombesin, and LiCl in rats

Past research indicates that feeding is reduced for animals injected with cholecystokinin and bombesin. One explanation for this effect suggests that these peptides act as natural satiety signals; an opposing view asserts that bombesin and cholecystokinin reduce feeding through malaise. The present...

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Veröffentlicht in:Physiology & behavior 1992-05, Vol.51 (5), p.969-972
Hauptverfasser: Bowers, Robin L., Herzog, Christopher D., Stone, Eric H., Dionne, Thomas J.
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container_end_page 972
container_issue 5
container_start_page 969
container_title Physiology & behavior
container_volume 51
creator Bowers, Robin L.
Herzog, Christopher D.
Stone, Eric H.
Dionne, Thomas J.
description Past research indicates that feeding is reduced for animals injected with cholecystokinin and bombesin. One explanation for this effect suggests that these peptides act as natural satiety signals; an opposing view asserts that bombesin and cholecystokinin reduce feeding through malaise. The present experiment tested the basic assumptions associated with these positions using the defensive burying procedure. Groups of rats were given sweetened condensed milk followed by IP injections of bombesin (6,16, and 32 μg/kg), cholecystokinin (0.7, 1.4, and 2.9 μg/kg), LiCl (6.4 mg/ml), or saline. The results showed that animals injected with cholecystokinin, bombesin, and LiCl developed learned aversions to the milk and actively buried the milk spout with their bedding. The findings provide further support for the view that bombesin and cholecystokinin induce malaise rather than satiety.
doi_str_mv 10.1016/0031-9384(92)90079-H
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The findings provide further support for the view that bombesin and cholecystokinin induce malaise rather than satiety.</description><subject>Animals</subject><subject>Appetitive Behavior - drug effects</subject><subject>Arousal - drug effects</subject><subject>Association Learning - drug effects</subject><subject>Avoidance Learning - drug effects</subject><subject>Behavioral psychophysiology</subject><subject>Biological and medical sciences</subject><subject>Bombesin</subject><subject>Bombesin - pharmacology</subject><subject>Chlorides - pharmacology</subject><subject>Cholecystokinin</subject><subject>Conditioning, Classical - drug effects</subject><subject>Defensive burying</subject><subject>Dose-Response Relationship, Drug</subject><subject>Fundamental and applied biological sciences. 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subjects Animals
Appetitive Behavior - drug effects
Arousal - drug effects
Association Learning - drug effects
Avoidance Learning - drug effects
Behavioral psychophysiology
Biological and medical sciences
Bombesin
Bombesin - pharmacology
Chlorides - pharmacology
Cholecystokinin
Conditioning, Classical - drug effects
Defensive burying
Dose-Response Relationship, Drug
Fundamental and applied biological sciences. Psychology
Hormones and behavior
Learned aversion
Lithium - pharmacology
Lithium Chloride
Malaise
Male
Motivation
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Rats
Rats, Inbred Strains
Satiety
Satiety Response - drug effects
Sincalide - pharmacology
Species-specific defense reactions
Unconditioned stimuli
title Defensive burying following injections of cholecystokinin, bombesin, and LiCl in rats
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