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1.
Robert J. Blanchard Charles K. Kleinschmidt Kevin J. Flannelly D. Caroline Blanchard 《Aggressive behavior》1984,10(4):309-315
The effect of fear on two types of aggression in rats was investigated by adding a cat stimulus to a colony in which the dominant male was attacking an intruder (offensive aggression), or, to a tube test situation in which defensive biting was measured before and during tail shock. The cat completely abolished offense in the colony; when the cat was presented and removed before a strange rat was placed in the colony, attack on the intruder was also reduced. In contrast, defensive biting was unchanged or even slightly potentiated by the presence of the cat, demonstrating a separation of the effects of fear on offensive and defensive aggression. 相似文献
2.
Analysis of the body targets attacked and defended during play-fighting by juvenile Djungarian hamsters Phodopus campbelli revealed that about 70% of all attacks were directed at the mouth. If successfully contacted, the mouth was briefly licked and nuzzled. The remaining playful attacks were gentle bites directed at the rump, and to a lesser extent, the top of the head. During serious fighting the top of the head and the rump are targets of attack, whereas the mouth is not. Licking and nuzzling the mouth was found to be a behavior performed by adult males at the beginning of sexual encounters. Therefore, play-fighting in juvenile hamsters cannot be thought of merely as a form of “mock fighting” since the principal target is seemingly sexual, not agonistic. The data also show that of the sexual body targets contacted, adult females are more likely to defend the mouth. In this way it is suggested that targets attacked and defended during juvenile play-fighting are derived from adult contexts in which such targets are defended. This hypothesis accounts for the prevalence of agonistic targets in the play-fighting of many species, and may provide a rationale for classifying those amicable targets that are competed for during play-fighting. 相似文献
3.
D. Caroline Blanchard Nina K. Popova Irina Z. Plyusnina Irina L. Velichko Desiree Campbell Robert J. Blanchard Julia Nikulina Ella M. Nikulina 《Aggressive behavior》1994,20(5):387-397
Selective breeding of wild rats over many generations on the basis of low or high defensive threat and attack to human approach and contact has produced highly polarized “domesticated” and “wild-type” animals. Because the selection procedure selectively involves these two defense patterns, and these clearly differ in the two groups, it is of interest to determine if other, nonselected, defensive behaviors to threat stimuli also change. “Domesticated” and “wild-type” rats of the thirty-fifth generation were run in a fear defense test battery (F/DTB) to systematically evaluate defensive behaviors to a variety of present threat stimuli. “Domesticated” rats showed reduced avoidance and slower flight speed to an approaching experimenter, reduced jump/startle response to handelap and dorsal contact, less vocalization and boxing to vibrissae stimulation or to an anesthetized conspecific, and reduced defensiveness to an attempted pickup by the experimenter. These results indicate that selective bi-directional breeding for defensive threat and attack to human approach and contact produces group differences in a variety of defensive behaviors, and in defensiveness to stimuli other than those on which the selection was based. © 1994 Wiley-Liss, Inc. 相似文献
4.
Defensive aggression was examined in seven species of terns during the hatching period when young are most vulnerable and adults most responsive. Aggression toward an unfamiliar person varied with respect to species, flush distance, approach distance, number of birds overhead and diving, and number of dives per 2 min for all birds and the nest owner. Defensive aggression involved birds circling over and diving at the experimenter. Generally, flush distance was negatively correlated with nest density, while the number of birds diving was positively correlated with the nest density. The number of birds diving was positively related to the number of dives, dives by the owner, and the number overhead. 相似文献
5.
This paper will focus on the writer’s experience as a native New Yorker relocating to Montgomery, Alabama. The writer will
share how he adjusted and coped with overt discrimination and racism in the context of the high school in which he attended
there-a majority white high school on the “other” side of town. The writer will share how he employed the following coping
mechanisms as methods of adjusting to his new environment: translating emotional experiences into words (relaxation and talk
therapy), involvement with other black positive peers, careful assessment before acting, withdrawal and avoidance, and consuming
African-American literature. 相似文献
6.
Although the Defense Mechanism Test (DMT) has been in use for almost half a century, there are still quite contradictory views about whether it is a reliable instrument, and if so, what it really measures. Thus, based on data from 39 female students, we first examined DMT inter-coder reliability by analyzing the agreement among trained judges in their coding of the same DMT protocols. Second, we constructed a "parallel" photographic picture that retained all structural characteristic of the original and analyzed DMT parallel-test reliability. Third, we examined the construct validity of the DMT by (a) employing three self-report defense-mechanism inventories and analyzing the intercorrelations between DMT defense scores and corresponding defenses in these instruments, (b) studying the relationships between DMT responses and scores on trait and state anxiety, and (c) relating DMT-defense scores to measures of self-esteem. The main results showed that the DMT can be coded with high reliability by trained coders, that the parallel-test reliability is unsatisfactory compared to traditional psychometric standards, that there is a certain generalizability in the number of perceptual distortions that people display from one picture to another, and that the construct validation provided meager empirical evidence for the conclusion that the DMT measures what it purports to measure, that is, psychological defense mechanisms. 相似文献
7.
The use of intoxicants is indexed in American history adopting a social perspective of the role of alcoholism in traditional American society. Appealing to societal patterns, the elaboration of substance abuse as a disease is explored with a diagnostic focus on intervention as it relates to pathogenesis. Using clinical vignettes, the ego is proposed as the focus of pathology in the addiction process, featuring a regression to the defenses of projection and denial. Following the model proposed in Zinberg's seminal paper on addiction and ego function, various deficits are annotated that typify such regression. The ultimate clinical picture is one of ego atrophy, where basic interests and object relations are usurped by the all-consuming preoccupation with the substance of abuse. 相似文献
8.
9.
Moti Mizrahi 《Metaphilosophy》2015,46(1):52-64
Experimental philosophers have challenged friends of the expertise defense to show that (a) the intuitive judgments of professional philosophers are different from the intuitive judgments of nonphilosophers, and (b) the intuitive judgments of professional philosophers are better than the intuitive judgments of nonphilosophers, in ways that are relevant to the truth or falsity of such judgments. Friends of the expertise defense have responded by arguing that the burden of proof lies with experimental philosophers. This article sketches three arguments which show that both (a) and (b) are probably false. If its arguments are cogent, then shifting the burden of proof is a futile move, since philosophical training makes no difference so far as making intuitive judgments in response to hypothetical cases is concerned. 相似文献
10.