摘要:

AbstractData from experimental animals suggest that 5‐hydroxytryptamine (5HT) may have an inhibitory effect on aggression, while clinical studies have found a correlation between pathological aggression and low brain 5HT. To investigate this relationship further we used amino acid mixtures designed to raise or lower the levels of the 5HT precursor, tryptophan. Normal male subjects were given tryptophan‐depleted, balanced, or tryptophan‐supplemented ammo acid mixtures and tested for aggression 5 hours later. The balanced amino acid mixture served as a control for the tryptophan depletion and supplementation. Testing for aggression was done using the Buss paradigm in which subjects deliver electric shocks to a (nonexistent) partner in response to stimulus tones. Duration and intensity of shock delivered were the measures of aggression, while responsivity to the stimulus tones was the measure of perceptual sensitivity. Neither tryptophan supplementation nor tryptophan depletion had any effect on these measures of aggression or perceptual sensitivity. We conclude that raising or lowering the synthesis of brain 5HT through alterations in tryptophan availability does not influence aggression in normal males as measured by the Buss

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<393::AID-AB2480120602>3.0.CO;2-L

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractIn experiment 1, individually housed rats subjected to short‐term food restriction displayed more territorial aggression toward conspecific intruders than controls maintained on a free‐feeding diet. In experiment 2, small groups of three adult male rats had access to either a standard laboratory diet or the standard diet plus sucrose. Groups with the sucrose supplement were significantly less aggressive toward intruders than controls. Sucrose availability did not produce appreciable gains in body weight but it did reliably decrease within‐colony weight variation. The results suggest the existence of an effective dietary mechanism that enables a social species such asRattus norvegicusto tolerate each other in dense feeding aggregations when food is abundant. Conversely, when food is limited, social intolerance increases and serves to limit the development of large feeding g

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<409::AID-AB2480120603>3.0.CO;2-6

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractThe phenylpiperazine fluprazine hydrochloride was used to test the hypothesis that maternal aggression in laboratory mice reflects offensive motivation. Lactating females (n = 8 per condition) tested for aggression following drug treatment (1.0 mg/kg and 5.0 mg/kg of fluprasine) were significantly less aggressive than saline controls according to all measures used. The findings support the hypothesis that maternal aggression is offensive in nature, and provide no evidence that maternal attack is a mixture of offensive and defensive tendencies.

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<417::AID-AB2480120604>3.0.CO;2-8

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

Abstract“Spontaneous” intermale aggression was investigated in seven inbred strains of mice. A positive interstrain correlation and cross‐correlation was found for two indices of fighting intensity, ie, accumulated attacking time and number of attacks. The strain aggressiveness level (percent of mice fighting in each strain) does not correlate with the intensity of aggressive behavior. It has been shown by using a genetical analysis performed on C57BL/6 and BALB/c strains, their reciprocal F1hybrids, and back‐crosses that these indices of intermale aggression are under different genetic control. Aggressive behavior intensity depends on the additive effects of genes. The control of strain aggressiveness level revealed that a high level of aggressiveness was dominant. No reciprocal effects were found. The level of aggressiveness and the intensity of fighting seem to represent different aspects of aggression and may be controlled by different genetic mec

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<425::AID-AB2480120605>3.0.CO;2-A

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractThe intertroop agonistic behavior of a troop ofMacaca mulatta villosawas studied in both forested and urban areas. Intertroop contacts lasted longer and were more likely to involve aggression in the town than in the forest. In particular, adult males and adult females when in urban areas showed a significantly higher rate of the most extreme forms of agonism, such as attacks, chases, and fights, than when in the forest. Data are explained in relation to feeding patterns and environmental differences and show the great flexibility of social behavior in these primates. Genetic selection for a high level of aggression in an urban population of macaques is not considered likely.

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<433::AID-AB2480120606>3.0.CO;2-C

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<441::AID-AB2480120607>3.0.CO;2-E

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<443::AID-AB2480120608>3.0.CO;2-5

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<444::AID-AB2480120609>3.0.CO;2-#

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<445::AID-AB2480120610>3.0.CO;2-M

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0096-140X    

DOI:10.1002/1098-2337(1986)12:6<449::AID-AB2480120611>3.0.CO;2-7

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY