摘要:

AbstractVideotape recordings of male mice group‐housed, individually‐housed and cohabiting with females, were rated for their agonistic behavior in a “standard opponent” test. Previously mated male mice showed more fighting than isolated or grouped males. Marked differences in other social and non‐social behaviors, which could not be accounted for in terms of increased fighting, were not evident. These results suggest that agonistic behavior may be usefully studied by examining male mice that have cohabited with females. One obvious advantage is that such mice cannot be dismissed as being “socially deprived,” as is sometimes claimed for individually‐housed mice. Other advantages are that aggressiveness is induced quickly, at high levels, and the mice appear very sensitive to hormone manipulation follo

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<201::AID-AB2480040302>3.0.CO;2-5

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

年代:1978

数据来源: WILEY

摘要:

AbstractLarge depletion of brain 5 HT has been shown to induce mouse‐killing behavior in the rat. Selective lesions of the raphe nuclei have been investigated in order to determine whether the various components of the 5 HT system exert some specific control over this aggressive behavior. Electrolytic lesions of the dorsal or the median raphe nucleus do not induce mouse killing, whereas combined lesions of these nuclei elicit this behavior in about 40% of naive rats. Consequently, it appears that serotonergic neurons originating in the dorsal and median raphe nuclei work synergistically in mediating inhibitory control over mouse‐killing behavior. Loco‐motor activity is increased in novel environments by each of the selective lesions and to a larger extent by combined raphe lesions; 24 hours activity in resting conditions is unchanged during the light period, and increased during the dark period of the daily cycle by the various lesions. As it has been shown previously that hyper‐activity in response to novelty following raphe lesions is not directly related to the 5 HT decrease in the brain, it appears that interspecific aggression and motor responsiveness must not be dependent on the same neural substrate within the raphe nuclei. The raphe lesions do not facilitate the elicitation of mouse killing by further olfactory bulb ablations, in contrast to earlier results where bulbectomy facilitated the induction of this behavior by raphe

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<207::AID-AB2480040303>3.0.CO;2-L

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

年代:1978

数据来源: WILEY

摘要:

AbstractThe social dominance behavior of dyads of unacquainted, same‐sex 31/2 year‐olds was observed in a familiar laboratory playroom under two conditions: A free play situation and a situation where candy was introduced. In each of the two conditions, a principal components analysis was used to explore two issues: the usefulness of the multivariate approach in devising a definition of dominance, and the cross‐situational stability of the construct. In the free play session, the first principal component that emerged was consistent with a theoretical definition of dominance. This picture was disrupted by the introduction of candy in the second condition. However, a high correlation was found between the dominance hierarchies established in each situation. It was concluded that the multivariate analysis is a useful method for the study of dominance. The generalizability of social dominance across settings was discussed as a possible explanation for the high cross‐situational st

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<219::AID-AB2480040304>3.0.CO;2-B

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

年代:1978

数据来源: WILEY

摘要:

AbstractAdam [1976; Lehman and Adams, 1977] suggested that a resident rat makes an olfactory comparison of cage odor and other rat odor prior to attacking an unfamiliar conspecific intruder. The findings of the present study are consistent with the notion that rats discriminate between familiar and unfamiliar putative urinary odorants Adult male albino rats were tested for preferences between areas treated with familiar urine (11 hours pretest exposure), unfamiliar urine (no pretest exposure), and untreated areas. Subjects (N = 12) preferred areas treated with familiar urine over ones treated with unfamiliar urine (p<0.05). Also, they (N = 12 per preference‐test group) preferred areas treated with either urine over untreated ones (familiar versus clean, p<0.01; unfamiliar versus clean, p<0.05

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<231::AID-AB2480040305>3.0.CO;2-U

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

年代:1978

数据来源: WILEY

摘要:

AbstractA series of experiments was conducted to investigate sex, housing conditions, and strain as possible factors influencing the interference effect of prior exposure to shock on shock‐induced aggression. In albino subjects, female rats and rats housed in community cages evidenced the greatest suppression in aggression following prior exposure to shock. In addition, ten sessions of prior exposure to shock produced a greater suppression in shock‐induced fighting than 20 sessions of prior exposure to shock. The prior shock effect was not obtained with hooded subjects. Responsivity to shock was also investigated to determine whether the prior exposure to shock attenuation of shock‐induced fighting was a consequence of reduced activity in response to shock. Responsivity to shock measured with an isometric platform accounted for less than 4% of the variance in shock‐induced fighting in the single experiment that obtained a correlation between responsivity and shock‐induced a

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<237::AID-AB2480040306>3.0.CO;2-9

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

年代:1978

数据来源: WILEY

摘要:

AbstractPeriods of 24 to 48 hours of food deprivation reliably induced pup‐killing in 30–50% of non‐killer male mice. The behavior was prevented by previous experience with young and did not perseverate to non‐deprived states. Castrated males and intact females also exhibited pup‐killing following food deprivation, suggesting that the behavior is neither sexdependent nor related to the presence of testosterone. The findings are discussed in terms of their relationship to predatory behaviors and population

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<253::AID-AB2480040307>3.0.CO;2-G

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

年代:1978

数据来源: WILEY

摘要:

AbstractThe relationship between the aversive urine odors of adult male mice and their agonistic interactions was examined. The urine of 28 isolated intact donors was tested for its aversiveness before the donors had won or lost an agonistic encounter, by spotting a portion of an open field with their urine. Group‐housed males (n = 28), each tested with the urine of an ultimate winner and loser, as well as a castrate, avoided both intact types. The urine of castrates was not aversive. Another group of subjects (n = 28), tested with urine collected following the encounter between donors, provided identical results. A second experiment examined the aversiveness of urine from 24 isolate mice, and their responsiveness to urine of other isolates, prior to their encounter. The urine was not highly aversive to the isolates However, winners and losers differed in their responsiveness, as ultimate winners exhibited greater aversion. The results are discussed with regard to territorial maintenance via odors, and how differential responsiveness to odors may influence the outcomes of agonistic encounter

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<263::AID-AB2480040308>3.0.CO;2-C

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

年代:1978

数据来源: WILEY

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<277::AID-AB2480040309>3.0.CO;2-X

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

年代:1978

数据来源: WILEY

ISSN:0096-140X    

DOI:10.1002/1098-2337(1978)4:3<::AID-AB2480040301>3.0.CO;2-4

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

年代:1978

数据来源: WILEY