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261.
The effects of acute administration of two nicotinic ligands, (‐)‐nicotine and (‐)‐lobeline were examined on isolation‐induced aggression in mice. Individually housed male mice confronted anosmic “standard opponents” in a neutral arena 10 min after drug administration. Encounters were videotaped and evaluated using an ethologically based analysis facilitating estimation of time allocated to 11 broad behavioral categories. Nicotine did not have significant effects on threat or attack but significantly diminished time allocated to digging. The lowest dose of lobeline significantly diminished attack and induced a slight increase of immobility without significantly diminishing other behaviors with motor components. The intermediate and highest dose of lobeline reduced time allocated to all behaviors with motor components. It is concluded that these two nicotinic agonists produce different behavioral profiles during agonistic encounters in mice but that this test may not facilitate assessing the impact of such drugs on irritability. Aggr. Behav. 26:376–385, 2000. © 2000 Wiley‐Liss, Inc.  相似文献   
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Although relatively little is known about ethnic differences in men's drive for muscularity, recent theoretical developments suggest that ethnic minority men may desire greater muscularity to contest their positions of relative subordinate masculinity. This study tested this hypothesis in a sample of 185 White, 180 Black British, and 182 South Asian British men. Participants completed self‐report measures of drive for muscularity, need for power, adherence to traditional cultural values, and ethnic group affiliation. Taking into account between‐group differences in body mass index, results indicated that White men had significantly lower drive for muscularity than Black and South Asian men, who were not significantly different from each other. In addition, greater need for power was significantly associated with higher drive for muscularity in ethnic minority, but not White, men. Greater adherence to traditional cultural values, but not ethnic group affiliation, was associated with lower drive for muscularity in all ethnic groups. These results suggest that ethnic minority men may desire greater muscularity as a means of negotiating masculinity and attendant ideals of appearance.  相似文献   
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Displaced aggression refers to pernicious acts against innocent people. To date, little is known about mechanisms underlying dynamic changes in displaced aggression. The present study constructed a cross-lagged model to examine the dynamic effects of relative deprivation on displaced aggression and the mediation mechanisms underlying these effects. A total of 1130 undergraduate students participated in this three-wave longitudinal study. The results showed that relative deprivation predicted changes in displaced aggression through concurrent changes in levels of hostile attribution bias and moral disengagement. Hostile attribution bias and moral disengagement could predict each other longitudinally. The relationships between relative deprivation and displaced aggression, and relative deprivation and hostile attribution bias were mutual. This multiple mediation model with two mutually predicting mediators was explained from the aggressive motivation perspective. The findings help inform aggression theories and have implications for the prevention of and interventions against displaced aggression.  相似文献   
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Both Freud and Lacan have made love the object of scientific enquiry, which is in itself remarkable, since we usually turn this subject over to literary and philosophical treatment. This article discusses Freud and Lacan's contributions to the psychology of love through dialogue with Marcel Proust's seminal novel, Remembrance of Things Past, with special emphasis on the middle sections. The point of departure is love's manifestation in the analytical situation. Freud has described transference love as both resistance and as an extreme variant of normal falling in love, to which Lacan adds the deceptive character of transference. From transference love the investigation continues to the contradictions Freud has described in Three Essays on the Theory of Sexuality as love's affectionate and sensual currents. Lacan contributes the concept of desire, which must be distinguished from drive and love. The differentiation between desire, drive and love introduces the perspective necessary for a psychoanalytic reading of Proust's opus. The main objective is a reading of the protagonists, Albertine and the Baron de Charlus, as representatives of the vicissitudes of love and drive, respectively.  相似文献   
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Resident‐intruder (R‐I) tests can be used to measure the aggressive temperament of domestic pigs (Sus scrofa), and have previously been shown to predict the severity and persistence of aggression when unfamiliar pigs are mixed. To study the consistency of individual differences in aggressiveness over time, 112 pigs (eight from each of fourteen litters) were given two R‐I tests at each of three ages (46, 80, and 113 days). Pigs were R‐I tested singly in an arena within the home pen, where a smaller unfamiliar intruder pig was introduced to a resident pig. Latency to the first attack by the resident was recorded, and the test was stopped as soon as an attack occurred, otherwise the test lasted five minutes. Pigs from eight of the litters used here had been allowed to mix with another litter prior to weaning (days 10–30; socialised), while pigs in six litters remained in littermate groups (control). To determine whether consistency would survive the effects of social disruption, pigs were mixed into new groups on two occasions between the first and second test, then remained in these groups until the third test. Evidence of consistency was found, despite the social disruption. Socialised pigs were more aggressive than controls, females were more aggressive than males, and certain litters were more aggressive than others. After adjusting for these, consistent differences between individuals were still evident. Consistency was higher between the second and third tests compared to the first and second, possibly because of stable group membership or the effects of age or experience. In support of the idea that social experience improves consistency, socialised pigs were more consistent than controls throughout. Evidence of consistent individual differences in aggressive temperament suggests that breeding or changes to early life experiences could have a long‐lasting influence on aggressive behaviour in pigs. Aggr. Behav. 30:435–448, 2004. © 2004 Wiley‐Liss, Inc.  相似文献   
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A total of 125 growing pigs (47 days old) were tested for aggressive responses on two occasions using a resident‐intruder (R‐I) design. Our aims were twofold: (1) to attempt to replicate earlier work on pigs showing that resident aggression is a consistent individual characteristic, unaffected by weight or sex of the resident or intruder and (2) to develop behavioural measures to characterise the wide range of aggressive responses in the test. Resident pigs, housed since birth with littermates, were placed individually in a divided‐off portion of their home pen, and a smaller, unfamiliar intruder (approximately 66% of the resident's weight) was introduced. The test ended 5 min after the first investigation of the intruder by the resident or when one of the pigs began to attack the other (by delivering a sudden, rapid series of bites). On days 1 and 2, 33.6% and 43.2% of tests, respectively, ended in an attack by a resident. Intruder attacks were rare. Pigs were consistent in whether they attacked or not over the two tests, although attack latencies for pigs attacking in both tests were not correlated. Females were more likely to attack and attacked more quickly than males on the first test day but not in the second test or overall. Intruder sex had some effect on the test outcome (males were attacked more rapidly in the second test only). Resident and intruder weight had no effect. Aggressive pigs (meaning pigs that attacked vs. pigs that did not and fast‐attacking pigs vs. slow‐attacking pigs) showed a number of differences in behaviour during the R‐I test: (1) they took longer to make initial contact with the intruder in their first test; (2) they showed a higher frequency of aggressive acts (single head knocks, bites, and shoves); (3) they spent a greater proportion of the test engaging in social contact with the intruder rather than non‐social behaviours; (4) their social behaviour involved more postures directed toward the head as opposed to flank‐ or rear‐directed postures or re‐establishing social contact; and (5) they showed closer physical contact with intruders during social encounters, as characterised by their lower head positions. Some of these behavioural measures could be used to improve the measuring power of the test in the future. Improved behavioural measures would enable aggressiveness scoring among pigs that did not attack instead of classifying them all together as “non‐attacking.” Aggr. Behav. 28:401–415, 2002. © 2002 Wiley‐Liss, Inc.  相似文献   
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