Sweet and sour rats: The effect of insulin dosage on shock-elicited aggression

Cronin

Meriwether

et al. 1978

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Two experiments investigating. the effects of chronic vs. acute insulin-induced hypoglycemia on attack and biting behavior elicited by tailshock are reported. Chronic-injection subjects had blood-sugar level experimentally reduced by insulin for 29 days, including the day of shock testing. Acute-injection subjects received an insulin injection only on the day of testing. High levels of attack and biting behavior were shown in the single-animal shock-elicited aggression situation by the chronic subjects in both experiments. High response levels were shown by the acute-injection subjects only in Experiment 2. The lack of such responding in Experiment 1 was attributed to the different injection procedures used in the two experiments. The data are supportive of the proposed negative relationship between hypoglycemia and aggressive responding.

Section: Methodsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Shock-elicited attack and biting as a function of chronic vs. acute insulin injection

Cronin

Meriwether

et al. 1978

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“…increased (Neideffer et al , 1977), (2) a curvilinear relationship appeared to exist between insulin dose and amount of attack and biting (Davis, Gussetto , Tramill, Neideffer , & Travis-Neideffer, 1978), and (3) chronic insulin-injection procedures did not lead to habituation or adaptation of attack and biting (Davis, Cronin , Meriwether, Neideffer, & Travis-Neideffer, 1978).…”

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confidence: 99%

Active avoidance responding as a function of insulin-induced hypoglycemia

Neideffer

Travis-Neideffer

1980

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Two experiments investigating the effect of insulin-induced hypoglycemia (lowered bloodsugar level) on one-way active avoidance learning by rats are reported. The first study indicated that hypoglycemia resulted in significantly inferior avoidance acquisition. These results were replicated in the first phase of the second experiment. However, this acquisition deficit did not carry over to the second (retention) phase conducted 24 h later.

“…For example, a recent series of studies (Davis, Cronin, Meriwether, Neideffer, & Travis-Neideffer, 1978;Davis, Gussetto, Tramill, Neideffer, & Travis-Neideffer, 1978 ;Neideffer, Travis, Davis, Voorhees, & Prytula, 1977) has clearly demonstrated that insulin-induced hypoglycemia results in increased shock-elicited aggression. Further, Cahoon, Crosby, Dunn, Herrin, Hill, and McGinnis (1971) and Hamby and Cahoon (1971) have shown that rat subjects tested under food and water deprivation , respectively, displayed significantly higher levels of shock-elicited aggression responding than did satiated controls.…”

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confidence: 99%

Defensive burying as a function of food and water deprivation

Hazelrigg

Moore

et al. 1981

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Three groups of albino rats were tested for defensive burying behavior under conditions of food deprivation, water deprivation, or satiation, respectively. Satiated subjects accumulated significantly more beddng material around the aversive stimulus and spent significantly more time engaged in defensive burying than did food-and water-deprived subjects. These results are compared with shock-elicited aggression results obtained under similar deprivation states. Pinel and Treit (1978) demonstrated that rat subjects administered a single electric shock via a stationary shock prod chose to bury the prod rather than attack, flee, or freeze as might have been predicted by Bolles ' (1970) statement of species-specific defense reactions. Designated "defensive burying," this unusual behavior has subsequently been replicated in several laboratories