Did the instigator intend to provoke? A key moderator in the relation between trait aggression and aggressive behavior

The purpose of this study was to investigate the cross‐situational consistency of trait aggression in provoking situations where an instigator (1) clearly intended to provoke, (2) clearly intended not to provoke, or (3) where presence of intention was ambiguous. It was hypothesized that cross‐situational consistency would be substantial, and that trait aggression would have the greatest impact on aggressive behavior in ambiguous situations. Participants were 80 female and 38 male undergraduate students. They completed the Aggression Questionnaire [Buss and Perry, J Pers Soc Psychol, 1992, pp. 452], read a set of 24 vignettes depicting conflict situations and rated their perceived likelihood of becoming angry and aggressive in those situations. An overall cross‐situational consistency correlation coefficient of r=.47 was found. It was also found that trait aggression had a significantly greater effect on the likelihood of aggressive responses in the ambiguous and intentional situations than it did in the unintentional situations. These results are discussed in relation to trait activation and hostile attribution bias. Aggr. Behav. 30:409–424, 2004. © 2004 Wiley‐Liss, Inc.     

Mousekilling,intermale fighting,and conditioned emotional response in rats

Several possible relationships between two forms of aggression in rats were studied. First, mouse killing and spontaneous intermale fighting were found to be correlated. Rats which attacked other rats were those most likely to kill mice. To determine whether aggressive and nonaggressive rats were also differentially responsive to other situations involving emotional arousal, but not aggression, mouse-killers and nonkillers were compared in a conditioned emotional response (CER) situation. Mouse-killers showed greater suppression to the conditioned stimulus (CS) and to the situational cues of the apparatus. Therefore, a common arousal mechanism may underlie a number of diverse agonistic responses. Nevertheless, extensive mouse-killing experience did not increase the tendency of rats to fight with either adult males or juvenile males.     

The relationship between family aggression history and expressed aggression among college males

The relationship between family of origin aggression and aggression across numerous relationship types was examined among a sample of 197 college‐aged males. Participants completed a self‐report questionnaire assessing the frequency and severity of family aggression (aggression between parents, parental aggression directed toward participants), as well as the frequency and severity of participants' aggression across a number of relationship types (dating, friends, strangers, people in bars, co‐workers, bosses, police officers). The results of the present study indicate that a substantial proportion of college‐aged males report a history of aggressive behavior, both in dating/spousal relationship and other‐relationship types. Analyses revealed that observing parental aggression and receiving aggression from parents was related to aggression in dating relationships. However, only received aggression from parents was related to more general aggressiveness in other non–dating/spousal relationship types. The pattern of findings also suggest that it is important to assess the aggressive behavior of both parents to get a better understanding of the link between family aggression and later expressed aggression. Aggr. Behav. 25:255–267, 1999. © 1999 Wiley‐Liss, Inc.     

70-kHz vocalizations by male mice do not inhibit aggression in lactating mice

Two experiments investigated the relationship between adult male 70-kHz vocalizations and aggression by lactating female mice (Mus domesticus). Intact, vocalizing males, surgically devocalized males, and naturally nonvocalizing males were used to assess the effects of high frequency vocalizations on maternal aggression. The emission of high frequency vocalizations promoted aggressive behavior by the females. In both experiments, lactating females attacked the vocalizing males more rapidly and showed a higher incidence of aggressive behaviors toward these males than they did to the nonvocalizing male. We suggest that these vocalizations are only one of many situational cues that the female uses to determine her final behavioral response.     

Female behavior in populations of mice in the presence and absence of male hierarchy

Female aggression may be the regulator of population size in small mammals. Freely growing populations of house mice showed several differences in aggressive female behavior in the presence and the absence of a male hierarchy. Territoriality in females and not in males appeared to maintain social order and regulate population density. Certain females were seen patrolling and guarding the territory and chasing and fighting with both male and female intruders. These females did not fight amongst themselves, suggesting that they were not fighting for rank (as do the males) but for territory. Although these aggressive females produced young, the pups were neglected, and few were weaned. The non-aggressive females were the successful breeders. Aggression by the females only occurred when there was reproduction and increased densities. Assembled females with no males present never show this aggression. The occurrence of “male-type” behavior became most apparent when the males were removed at peak population densities. The removed males were then castrated and injected with testosterone cyprionate. Doses were increased by population cage, and therefore all males returned to each freely growing population were given the same dose. The males given oil placebo injections showed no return of a male hierarchy and the females showed high levels of aggression toward them. Males injected with testosterone cyprionate showed return of male aggression and fighting and mounting of females. But the new “dominant” females continued their patrols and chased males away from their territories and did not permit these males to mount. Male-male fighting consisted primarily of frontal attacks to the face and roll and tumble fights. Female-male aggression consisted primarily of attacks to the posterior region targeted at the base of the tail and the genitals of the male. The males were rarely seen attacking females and then only during mating. Females only attacked each other in defense of their territories.     

COMT基因rs6267多态性与母亲教养行为对青少年身体攻击和关系攻击的交互作用

遗传与环境如何交互作用影响儿童青少年的攻击行为是当前攻击研究中的重要前沿课题之一。近年来, 分子遗传学关于人类攻击的研究已拓展到对不同攻击亚类(身体攻击和关系攻击)的遗传基础的探讨。本研究运用问卷法与DNA分型技术, 对1258名儿童进行为时4年(四年级—七年级)的追踪调查, 考察COMT基因rs6267多态性与母亲教养行为对青少年身体攻击和关系攻击的交互作用以及性别在其中的调节作用。结果发现, COMT基因rs6267多态性与母亲教养行为仅交互作用于男青少年的身体攻击, 母亲教养行为显著预测GG 基因型男青少年的身体攻击, 但对T等位基因男青少年身体攻击的预测作用并不显著。COMT基因rs6267多态性与母亲教养行为对青少年关系攻击的交互作用不显著。本研究结果表明, 身体攻击和关系攻击具有不同遗传基础和发生机制。     

Evaluations of relational aggression as a function of relationship type and conflict setting

The present study examined influences on girls' evaluations of relational aggression situations. Second‐, third‐, fifth‐, and sixth‐grade girls evaluated four relational aggression conflict scenarios in terms of attributions of aggressor's intentions, evaluator's behavioral response, evaluator's affective state, and how likely the situation was to actually occur. Girls evaluated intentions of a best friend more positively, reported being more mad at an enemy, and perceived conflict to be more likely to occur with an enemy than a best friend. Aggressor intentions in direct conflict scenarios (aggressor said something mean to evaluator) were perceived as more negative than aggressor intentions in indirect conflict scenarios (aggressor said something mean about evaluator to another peer). Younger girls reported intentions of their enemy as being more positive than did older girls. Further, older girls reported intentions of their best friend as being more positive than intentions of their enemy. Older girls also were more accurate in conceptualizing variations in the conflict setting (direct, indirect) and responding in a context‐consistent manner. Findings are discussed in terms of the social‐relational and social‐situational processes that influence children's evaluations of relational aggression and how the current study extends previous research on relational aggression. Aggr. Behav. 26:179–191, 2000. © 2000 Wiley‐Liss, Inc.     

Syrian hamster males below an age threshold do not elicit aggression from unfamiliar adult males

In many species, young males are the dispersers, leaving their natal area after weaning to establish a breeding area of their own. As young males disperse, however, they are bound to encounter unfamiliar adult males with established territories. Such interactions between an adult male and a young male may always be agonistic. Alternatively, there may be an age threshold below which aggression is not elicited and above which the adult male is aggressive toward the juvenile male. To test these two alternative hypotheses, we paired 47 young Syrian hamster (Mesocricetus auratus) males ranging from 24 to 65 days of age with 47 adult male hamsters and measured aggressive and investigatory behavior for 5 min. We observed no aggression by the adult toward young males between 24 and 47 days of age or toward the single male that was 49 days of age. Young males that were 50 days of age or older, however, elicited significant levels of aggression from the adults. These results indicate that in Syrian hamsters, young males are less vulnerable to adult aggression up to an age threshold and are more vulnerable to adult aggression beyond that threshold. This pattern may facilitate the establishment of territories by dispersing young males below that age threshold. Aggr. Behav. 37:91–97, 2011. © 2010 Wiley‐Liss, Inc.     

Consuming Entertainment Media: How Media Effects Can Vary by Users’ Controllability

Previous communication studies have focused on how media content influences human aggression. Few studies, however, have been conducted regarding the influence of situational variables on human aggression. Regarding online gaming, the present study examines how game users’ aggression is influenced by two idiosyncratic situational variables: “degree of control” (playing vs. watching) and “degree of interaction” (alone vs. together). The feeling of presence is also examined as a mediator to explicate the mechanism through which these situational variables influence the game users’ levels of aggression. The results demonstrate that degree of control significantly affects users’ aggression. Aggression is increased when players actively participate in the game versus simply watching; situational factors that are associated with the way people engage in interactive media cause short-term shifts in players’ aggression. Implications and future research directions are discussed.     

Aggressive reactions to abusive supervision: the role of interactional justice and narcissism

In this study, we explore personality and situational conditions in which negative leadership - specifically, abusive supervision - is associated with aggressive behavior in subordinates. That is, we examine the role that interactional justice and narcissism play in an employee's decision to respond aggressively to an abusive supervisor. We demonstrate that interactional justice mediates the relationship between perceptions of abusive supervision and subsequent employee aggression. In addition, we demonstrate that narcissism interacts with interactional justice perceptions to predict workplace aggression. We find that individuals with high levels of narcissism are the employees who are most likely to respond aggressively when they interpret their leader's behavior as abusive.     

Indirect aggression in the media: A content analysis of british television programs

The purpose of this study is to determine how much indirect aggression occurs in television programs popular among British adolescents. Previous research has mainly focused on violence in the media rather than examining this more manipulative and subtle type of aggression. A content analysis of 228 hours of television programming revealed that indirect aggression was portrayed in 92.04% of all episodes analyzed. It was portrayed more frequently than physical and verbal aggression. Females were more likely to be shown as indirect aggressors than were males, while males were more likely to be portrayed as physical aggressors. Attractive aggressors were more likely to use indirect than other types of aggression. Indirect aggression was often found to be justified, realistic, and rewarded. We conclude that programs that are not considered violent may still contain a large amount of other types of aggression. Aggr. Behav. 30:254–271, 2004. © 2004 Wiley‐Liss, Inc.     

攻击行为一般模式述评

攻击行为一般模式从社会认知取向分析了特定情境下攻击行为的发生过程,即,人的因素和情境因素两个输入变量通过影响个体当时的内在状态和后继的评价与决策过程而产生攻击行为;同时,它还阐释了攻击性人格的形成和发展过程,即,生物因素与社会环境的相互作用影响个体的知识结构和知识结构中的情感要素,与攻击性相关的知识结构的发展、自动化和强化。对个体会产生长期的影响,从而改变个体的人格。该模式代表了攻击行为认知研究取向最新的理论进展。     

Distinguishing Proactive and Reactive Aggression in Chinese Children

This study examined proactive and reactive aggression and their relation to psychosocial adjustment in three samples (N = 767, 368 girls, M age = 10.03) of Chinese school age children. Confirmatory factor analyses revealed that a two-factor model which distinguished both proactive and reactive aggression fit the data reasonably well, and also fit the data better than a single-factor model in all three samples. The distinction between proactive and reactive aggression was found for both boys and girls. Reactive aggression was more strongly related to reciprocated friendship (negatively), peer victimization, emotion dysregulation, hostile attributions of others' behavior in ambiguous social situations, and self-reported loneliness and social anxiety (positively) than was proactive aggression. Proactive aggression was related to positive outcome expectancies and efficacy beliefs of aggression for boys but not for girls, but the significant gender difference was only found for positive outcome expectancies. The findings suggest that proactive and reactive aggression represent two distinct forms of aggression which are associated with specific adjustment outcomes in Chinese children.     

Relationship between maternal aggression and maternal care in the rat

Aggression among female rats is almost entirely confined to the period of late pregnancy and lactation. Behaviorally it is similar to the aggression of males including piloerection and lateral attacks, but it differs in its function. Unlike male aggression which serves to establish a social hierarchy and a territory, i. e., is competitive, maternal aggression is protective, i. e., it serves to prevent predation of the mother's offspring. In this respect it is closely related temporally and causally to maternal care; if the offspring are removed maternal aggression wanes almost immediately–its function no longer exists! Studies on aggression by mothers, among rats, from the author's laboratory are reviewed and comparisons made with maternal care. As noted, maternal aggression and maternal care are closely related during the cycle of maternal behavior and they share a similar hormonal basis and possibly the effect of uterine stimulation, but maternal care requires prolactin and the decline of progesterone while maternal aggression appears independent of pituitary hormones and does not require a decline in progesterone. Maternal aggression like maternal care appears to be organized into a hormonal phase, during pregnancy, parturition, and for about a week postpartum and a nonhormonal phase thereafter. Bilateral radiofrequency lesions of the lateral midbrain peripeduncular nucleus (PPN) produce deficits in maternal aggression if made on lactation day 7 (L7), but not earlier, without producing significant deficits in maternal behavior. Experiments showed that the PPN does not mediate hormonally stimulated maternal aggression; it appears to mediate only nonhormonally stimulated maternal aggression. Studies on the role of pregnancy hormones on long-term retention of maternal aggression and the role of olfaction in maternal aggression are also reviewed. © 1994 Wiley-Liss, Inc.     

Lack of correspondence between the reactive proactive questionnaire and the impulsive premeditated aggression scale among forensic psychiatric outpatients

The most studied bimodal classifications of aggressive behavior are the impulsive/premeditated distinction measured with the Impulsive Premeditated Aggression Scale and the reactive/proactive distinction measured with the Reactive Proactive Questionnaire. The terms of these classifications are often used interchangeably, assuming that reactive aggression is equivalent to impulsive aggression and that proactive aggressive behavior is the same as premeditated aggression. The correspondence or discrepancy between both aggression classifications/questionnaires, however, is understudied. Therefore, the current study investigated the correspondence between the RPQ and IPAS in a sample of 161 forensic psychiatric outpatients (FPOs) with severe aggressive behavior. Correlation analysis revealed a limited correspondence between the RPQ and IPAS. Cluster analyses derived three clusters from the RPQ as well as the IPAS: these clusters did not match in 60.3% of the cases. Furthermore, the notion that the RPQ measures trait aggression whereas the IPAS assesses state aggression could not be verified. The present study indicates that aggression subtypes as measured by use of the RPQ and IPAS correspond only partially and should not be used interchangeably. Furthermore, it was suggested that RPQ focuses more on actual aggressive behavior and the IPAS more on emotions and their regulation. Future research is needed to elucidate the applicability of both questionnaires in further detail.

     

Exploring the Association between Aggression and Anxiety in Youth: A Look at Aggressive Subtypes,Gender, and Social Cognition

We examined the associations among dimensions of aggression and anxiety disorder symptoms in an ethnically diverse community sample of youth (N = 83; 46% female). Research supports the existence of four aggressive subtypes (i.e., reactive overt, reactive relational, proactive overt, and proactive relational), and past research has found associations between relational aggression and anxiety, as well as between reactive aggression and anxiety. However, past studies have not examined the associations among anxiety symptoms and the combined subtypes of aggression mentioned above. Results of our study provided support for an association between anxiety and reactive relational aggression. In addition, gender was found to moderate the association, in that males with high anxiety showed higher levels of reactive relational aggression than males with low anxiety and girls. Further, we found that socially based negative cognitive errors mediated the association between reactive relational aggression and anxiety. Results are discussed in terms of clarifying gender differences in aggression, treatment implications, and the need for longitudinal studies to delineate the temporal associations between aggression and anxiety.     

Emotional arousal and gender differences in aggression: A meta‐analysis

This meta‐analysis investigated the possibility that gender differences in aggression, and the variability in these differences, are a function of gender differences in the regulation of arousal generated in emotionally evocative contexts. The sample of studies for this analysis was based on an exhaustive search of the relevant research reports from 1965–1999. Studies were excluded from the sample if they were case studies; investigated spousal/familial or societal violence, war, suicide, or political violence; involved clinical or deviant participants; included fewer than 10 participants; included all male, all female, all non‐Caucasian, or non‐US/non‐Canadian participants. Based on previous evidence that males may be more easily aroused by aggressive‐relevant emotional stimuli than females, and that males may have more difficulty regulating emotionally arousing states than females, we hypothesized that the magnitude of the gender differences in aggression would covary, in a nonlinear manner, with the emotional evocativeness of the study context. Consistent with our hypothesis, the magnitude of gender differences in aggression was relatively small in research contexts that appeared to produce no or large increments in emotional arousal and larger (favoring males) in contexts that appeared to produce small or medium increments in emotional arousal. Aggr. Behav. 28:366–393, 2002. © 2002 Wiley‐Liss, Inc.     

Social sanction and threat explanations of gender effects on direct and indirect aggression

The present study examined two explanations for gender differences in expression of direct and indirect aggression. The social sanction model suggests that aggressor and target gender effects may be accounted for in terms of social sanctions against behaving aggressively; indirect aggression is the likely outcome of inhibitions against expression of direct aggression. The threat argument suggests that high levels of direct aggression in male‐male dyads as well as apparent inhibitions against harming females might be accounted for by the fact that males are more threatening targets than are females. Research participants completed a questionnaire measure of direct and indirect aggression twice, once with reference to their behavior toward a same‐gender target and once with reference to their behavior toward an other‐gender target. Although most direct aggression was reported by male aggressors toward male targets, gender of target did not relate to indirect aggression. Males reported approximately equal levels of indirect and direct aggression. Although females reported using more indirect than direct aggression, they did not differ from males in their reports of the frequency of use of indirect aggression. These results provided some support for both models of gender effects on human aggression and suggest the appropriateness of a relatively complex model of gender effects on aggression. Aggr. Behav. 25:425–434, 1999. © 1999 Wiley‐Liss, Inc.     

“We're not friends anymore! unless…”: the frequency and harmfulness of indirect,relational, and social aggression

The frequency of items of indirect, relational, social, verbal, and physical aggression was assessed in the school environment of 422 adolescents, using the Indirect/Social/Relational Aggression scale (ISRA), a measure that combined items from indirect, relational, and social aggression research. We also assessed the perceived harmfulness of each item. Comparing these findings with the occurrence of aggression on television, we found that adolescents were exposed to nearly 10 times more indirect, relational, and social aggression on television than they are in school. Overall, there was no sex difference in the amount of aggression reported by boys and girls. However, when examining specific items, girls reported more gossiping and boys more hitting. Girls perceived indirect, direct relational, and verbal aggression as more harmful than did boys. Limited evidence was found for a distinction between indirect, relational, and social aggression, although it was clear that they were more similar than different. Aggr. Behav. 32:1–14, 2006. © 2006 Wiley‐Liss, Inc.     

Marital aggression predicts infant orienting toward mother at six months

Links between marital aggression and infant orienting toward mother in fearful and frustrating contexts were examined in 92 mother-infant dyads when infants were six months. Results demonstrated that marital aggression was linked with less orienting toward mothers in frustrating situations, in fearful situations marital aggression was linked with less orienting among infants who were high on fear reactivity only.