Assessing the Directionality of Deindividuated Behavior: Effects of Deindividuation,Modeling, and Private Self-Consciousness on Aggressive and Prosocial Responses

This study investigated the effects of deindividuation, modeling, and private self-consciousness on antisocial and prosocial responses. Groups of four participants (N = 72) were exposed to factorial combinations of situational cues (deindividuating vs. individuating) and modeling prosocial vs. no model vs. antisocial) and subsequently were given the choice to behave either aggressively or altruistically toward another person. Subjects receiving deindividuating cues produced higher levels of aggression and dispensed greater sums of money compared with individuated participants. Subjects exposed to a prosocial model administered more money than did subjects exposed to the no-model or aggressive model. Although an expected main effect of models on aggression approached significance, a predicted Situational Cues x Model interaction did not. This investigation suggests that subjective deindividuation is a neutral condition. When antisocial environmental cues are present, deindividuated persons are likely to engage in aggressive actions, whereas prosocial cues influence deindividuated group members to behave altruistically. Although deindividuated group members are affected by stimuli such as models, they are not influenced to a greater degree than are individuated people. Finally, these results suggest that when the situational manipulations designed to reduce private self-awareness are salient and powerful, they may affect behavior more than do dispositional levels of private self-consciousness.     

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。     

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.     

Turning the other cheek. Agreeableness and the regulation of aggression-related primes

Aggression-related cues (e.g., violent media) can prime both hostile thoughts and the tendency to commit aggression. However, not everyone engages in an aggressive act after being exposed to an aggression-related cue. Some thought pattern, perhaps an automatic one, may prevent the cue-aggression sequence in some individuals. These considerations motivated the present research, which examined the potential for agreeableness to moderate the effect of aggression-related cues on behavior and cognition. In Study 1, we found that priming with aggression-related cues increased aggressive behavior, but only among individuals low in agreeableness. Study 2 showed that aggression-related cues activated prosocial thoughts among individuals high in agreeable affect (a component of agreeableness). These results reveal that agreeable individuals are able to short-circuit the cue-aggression sequence, likely by recruiting prosocial thoughts in response to aggression-related primes.     

Inferences about the morality of an aggressor: the role of perceived motive

The research investigated perceivers' inferences about the morality of target persons who engaged in aggressive behavior. Across several experiments, inferences about the morality of an aggressor were based more on the perceived motives of the target than on the presence of facilitating situational forces. For example, when a target's aggression was facilitated by personal rewards for aggression (instrumental aggression), perceivers inferred more negative motives and attributed lower morality to the target than when the target's aggression was facilitated by situational provocation (reactive aggression). The results suggest that perceived motives play an important role in dispositional inference and pose a problem for models that focus primarily on perceived causality, assumptions about base rates (consensus), or diagnosticity.     

The sex-->aggression link: a perception-behavior dissociation

Four studies suggest that priming may yield directionally different effects on social perception and behavior if perceptual and behavioral experiences with the stimulus diverge. This seems true for sex and aggression: Men are more likely to behave aggressively than women, whereas women are more likely to perceive aggressive behavior than men. Using a sequential priming paradigm, Study 1 demonstrates that a basic semantic link between sex and aggression exists for both genders. This link, however, has opposing behavioral and perceptual consequences for men and women. Studies 2 and 3 demonstrate that sex priming facilitates aggressive behavior only for men. Study 4 shows that only women perceive the ambiguously aggressive behavior of a male target person as more aggressive after sex priming. Thus, the perceptual and behavioral responses to sex priming are consistent with the experiences men and women typically have with sex and aggression.     

Trait Aggressiveness and Aggressive Behavior in the Context of Provocation and Inhibition

Aggressive behavior often occurs despite salient cues within the immediate environment that indicate aversive consequences will likely follow. Prior research has shown high trait aggressiveness to be related to sensitivity to situational provocation; however, little research has examined whether it is also related to insensitivity to situational inhibitors. This study examines the relationship between trait aggressiveness and aggressive behavior in a provocative context with, and without, an unambiguous inhibitory stimulus. Prior to experiencing provocation and being afforded the opportunity to retaliate, participants who varied in trait aggressiveness were explicitly given (or not given) an instruction that aggressive behavior might lead to aversive consequences and, thus, one should not behave aggressively. Findings revealed that without the instruction, those higher in trait aggressiveness exhibited steeper increases in aggressive responding as provocation increased. In the group that received the instruction, trait aggressiveness was unrelated to aggressive responding at all levels of provocation.     

Schizophrenia and impulsive aggression: A heuristic inquiry with forensic and clinical implications

Assessment of a violent act committed by an offender with schizophrenia typically focuses on whether the act was due to distortions in thought or perception, i.e., delusions or hallucination. An important but less appreciated feature is the impulsivity of the act, which can have forensic and therapeutic implications. Here a modification of Barratt's classification of aggressive behavior is presented that includes premeditated (instrumental), medical (secondary), impulsive (expressive), and compulsive (instrumental and expressive) aggression. Violence due to a mental condition such as schizophrenia is considered medical, but even aggression motivated by delusions or hallucinations can also be characterized as impulsive, premeditated, or compulsive. Although research on aggression and schizophrenia is limited with regard to the impulsivity–premeditation dimension and difficult to compare, current evidence suggests this to be an important consideration in the assessment of aggression in individuals with schizophrenia, important both forensically and therapeutically. Future research on the impulsive–premeditated quality of aggressive acts by offenders with schizophrenia—research wherein aggressive behavior is defined, situational context is clarified, and diagnostic criteria are explicitly followed—should further refine our understanding of the nature of aggressive acts associated with schizophrenia. Findings from such research will undoubtedly inform assessment, treatment, and forensic relevance of schizophrenia-related physical aggression. Copyright © 2008 John Wiley & Sons, Ltd.     

Children's and adolescents' aggressive behavior in context: The development and application of aggressive problem-solving strategies

Social-cognitive information-processing models have frequently been used as a reference in studying children's and adolescents' aggressive behavior. According to these models, aggressive behavior is considered to be one way for children and adolescents to cope with the social problems of everyday life. A high level of aggressive behavior is traced to deficiencies in processing social information (e.g., in encoding social cues, interpreting situations, adopting goals, producing strategies, and evaluating responses), leading to an increased likelihood of employing aggressive problem-solving strategies. Emotions and physiological factors are also suggested to contribute to the social-cognitive information-processing activities promoting aggression. The development of aggressively biased ways of processing social information is seen to be related to numerous biological and environmental factors.     

The Effects of Trait Driving Anger, Anonymity, and Aggressive Stimuli on Aggressive Driving Behavior

We examined the effects of trait driving anger, aggressive stimuli, and anonymity on aggressive driving behavior in a driving simulation task. High and low driving anger participants were randomly assigned to one of four conditions: (a) anonymous vs. identifiable driver; and (b) exposure to aggressive stimuli versus nonaggressive stimuli. Participants drove more aggressively when they were anonymous (d = .28) and exposed to aggressive stimuli (d = .05). Males drove more aggressively than did females (d = .06). No main or interaction effects were found for trait driving anger. Results suggest that situational factors affecting other forms of aggression are also important in aggressive driving.     

A comparison of human aggression committed by groups and individuals: An interindividual-intergroup discontinuity

Experimental research comparing aggressive behavior committed by groups and individuals is important but sparse. This experiment compared aggressive behavior (i.e., amount of hot sauce allocated for others to consume) in four types of interactions: intergroup, interindividual, group-to-individual, and individual-to-group. The results revealed that intergroup interactions were significantly more aggressive than interindividual interactions. In addition, groups allocated and received significantly more hot sauce than individuals. These effects were not explained by diffusion of responsibility or trait aggressiveness. The experiment reveals two noteworthy conclusions: (1) the interindividual-intergroup discontinuity effect extends to aggressive behavior and (2) interactions in which a group is either the source or target of aggression are situational influences that can increase it.     

状态自恋与攻击行为——知觉到的威胁、愤怒情绪和敌意归因偏差的多重中介作用

采用2(自恋故事vs.中性故事)×2(威胁情境vs.表扬情境)的被试间设计对162名大学生的状态自恋与攻击行为的关系及其机制进行考察。结果发现:(1)与中性故事组相比,自恋故事能够显著激活被试的状态自恋水平;(2)与表扬情境相比,威胁情境中自恋激活组个体的攻击意向显著高于中性故事组,说明状态自恋激活能够显著增加个体的攻击行为;(3)状态自恋通过知觉到的威胁、愤怒情绪和敌意归因偏差间接预测攻击行为;(4)从总体上来说,知觉到的威胁既可显著直接预测攻击行为,也可通过愤怒情绪间接预测攻击行为。对自恋激活组,状态自恋可以通过影响愤怒情绪和敌意归因偏差间接影响攻击行为;对中性控制组来说,这种关系则不存在。本研究结果证实,状态自恋的激活能够显著增加个体面对消极反馈时攻击行为产生的认知情绪机制。     

The interacting roles of testosterone and challenges to status in human male aggression

This paper reviews the literature on sex and cultural differences in physical aggression and argues that only through understanding the interactions among evolutionary predispositions, hormonal influences, and social/situational factors can we possibly make sense of the patterns of human aggression that we see around us. Specifically, it is proposed that the process of natural selection has shaped hormonal responses in males that are sensitive to situations involving challenges to status and/or competition with other males, and that these hormonal changes are essential ingredients of the aggressiveness that occurs in these situations. Models of aggression that focus only on situational and cognitive/emotional triggers of aggressive behavior and attempt to understand human aggression without any reference to biology are destined to be incomplete at best.     

Situational determinants of inpatient self-harm

Auto-aggressive individuals have a higher likelihood of engaging in interpersonal violence, and vice versa. It is unclear, however, whether ward circumstances are involved in determining whether aggression-prone patients will engage in auto-aggressive or outwardly directed aggressive behavior. The current study focuses on the situational antecedents of self-harming behavior and outwardly directed aggression of psychiatric inpatients. Inwardly and outwardly aggressive behavior were monitored on a locked 20-bed psychiatric admissions ward for 3.5 years with the Staff Observation Aggression Scale-Revised (SOAS-R). A map of the ward was attached to each SOAS-R form, enabling staff members to specify locations of aggressive incidents. Time of onset, location, and provoking factors of auto-aggressive incidents were compared to those connected to aggression against others or objects. Of a total of 774 aggressive incidents, 154 (20%) concerned auto-aggressive behavior. Auto-aggression was significantly more prevalent during the evening (i.e., 50% compared to 32%), and reached its highest level between 8 and 9 P.M. (17% compared to 7%). The majority of self-harming acts (66%) were performed on patients' bedrooms. Outwardly directed aggression was particularly common in the day-rooms (24%), the staff office (19%), the hallways of the ward (14%), and the dining rooms (10%). Provoking factors of auto-aggressive behavior are less often of an interactional nature compared to outwardly directed aggression. The results suggest that a lack of stimulation and interaction with others increases the risk of self-injurious behavior. Practical and testable measures to prevent self-harm are proposed.     

Situational variables related to aggression in institutional settings

For decades, aggressive behavior among psychiatric inpatients has been identified as disruptive to the therapeutic environment and a workplace hazard. Most previous research has focused on individual patient risk factors with less attention paid to the situational, environmental, or therapeutic milieu factors that could influence violence rates. This review outlines the prominent areas discussed in situational factor research and presents recent theoretical models that integrate these factors. Based on the identified shortcomings in the available literature, suggestions for future research directions are offered.     

Alcohol and Aggression: Perspectives on Controlled and Uncontrolled Social Information Processing

This paper reviews the main current social cognitive explanations of the effects of acute alcohol consumption on aggression: the cognitive disruption model, the attributional model, and model of automaticity. The cognitive disruption model posits that intoxication affects controlled processing arising from the impairment of executive cognitive functions by alcohol's pharmacological properties. The individual consequently focuses on the most salient and proximal situational factors, thereby spoiling self‐regulatory processes. According to the attributional model, drinkers expect alcohol to mitigate social sanctions following aggression by shifting blame to alcohol. These explicit expectations represent an extrapharmacological cause of the alcohol–aggression link. Finally, the model of automaticity implies that alcohol meanings stored in long‐term memory and activated in drinking contexts automatically trigger aggressive thoughts and behavior without the individual's awareness. The explanation of intoxicated aggression should integrate these co‐etiological social cognitive models that take into account pharmacological as well as extrapharmacological consequences of alcohol consumption.     

Effects of situational aggression cues: a quantitative review

Meta-analytic procedures were used to assess the degree to which aggression-related cues present in the environment facilitate aggressive responding among negatively aroused subjects. The first study, which examined the so-called weapons effect, the effect of name-mediated cues, and other cue effects, showed clear evidence that aggression cues augment aggressive responses in negatively aroused subjects. This was true for the overall analysis and for name-mediated cues, but confirmation of the weapons effect was restricted to cases wherein subject sophistication and evaluation apprehension were low. A second study used partial correlation analysis to assess independently the effects of seven potential mediators of aggression cue effects. Of these, target-based facilitation and harm capacity of the aggressive response were found to mediate the magnitude of cue-facilitated aggression. A third study showed that these mediators augmented cue effects among neutral as well as negatively aroused subjects. These outcomes are interpreted as emphasizing the role of cognitive factors in the expression of both impulsive and nonimpulsive aggression.     

攻击性驾驶行为的综合模型

攻击性驾驶行为的综合模型(a comprehensive model of driver aggression)将“挫折-攻击”模型与一般攻击性模型相结合, 提出个人因素与情境因素对心理过程具有交互作用, 阐明了认知评估、情绪唤醒对攻击性驾驶行为的影响机制。该模型能很好解释在道路冲突中, 驾驶员的攻击性持续升级的原因, 以及为什么在道路攻击性驾驶行为事件中, “肇事者”和“受害者”的角色模糊不清, 这有助于更好地确定攻击性驾驶行为对交通事故和道路安全的影响, 对攻击性驾驶行为的对策研究具有重要价值。     

Social context of human aggression: Are we paying too much attention to gender?

A considerable research literature has examined gender differences in aggressive behavior. This paper argues that such emphasis on gender effects in human aggression is misplaced, and it presents a focused review of research on (a) gender roles versus gender as predictors of aggression, (b) gender differences in direct and indirect aggression, (c) aggression in the context of interpersonal relationships, and (d) gender effects in psychological aggression. The authors conclude with the suggestion that gender has relatively weak effects on aggressive behavior and propose that the role of gender in aggression can be better understood by examining the context in which aggressive action takes place.