Neuroimaging Studies of Aggressive and Violent Behavior

Bufkin, Jana; Luttrell, Vickie R.

doi:10.1177/1524838005275089

Cited by 188 publications

(55 citation statements)

References 47 publications

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“…In terms of psychopathic behavior and aggression, the OFC is the most commonly implicated structure (Boccardi et al, 2011;de Oliveira-Souza et al, 2008;Tiihonen et al, 2008). Empirical studies suggest that lesions to the OFC lead to extreme reactive aggression in response to social provocations (Bufkin & Luttrell, 2005;Damasio et al, 1994;Davidson, Putnam, & Larson, 2000;Strüber, Lück, & Roth, 2008). In addition, neurological activity was negatively associated with reactive aggression after an unfair offer in the ultimatum game (Mehta & Beer, 2010).…”

Section: Antisocial Personality Disorder and The Brainmentioning

confidence: 96%

Violent criminality and self-compassion

Morley

2015

Aggression and Violent Behavior

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Section: Antisocial Personality Disorder and The Brainmentioning

confidence: 96%

Violent criminality and self-compassion

Morley

2015

Aggression and Violent Behavior

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“…Studies of neuroimaging and electrophysiology have found links between abnormal frontal or temporal lobe functioning and aggressive/violent behavior (Anderson et al 2006; Bartholow et al 2006;Bufkin and Luttrell 2005;Mathews et al 2005), although these studies have relied on correlational methods which cannot fully account for potential confounding variables (Browne and Hamilton-Giachritsis 2005). It has been proposed that impulsive aggression and violence may be a consequence of dysfunction in the neural circuitry of emotion regulation (Davidson et al 2000).…”

Section: Introductionmentioning

confidence: 98%

Short Term Exposure to a Violent Video Game Induces Changes in Frontolimbic Circuitry in Adolescents

Wang

Mathews

Kalnin

et al. 2009

Brain Imaging and Behavior

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Despite evidence of effects of violent video game play on behavior, the underlying neuronal mechanisms involved in these effects remain poorly understood. We report a functional MRI (fMRI) study during two modified Stroop tasks performed immediately after playing a violent or nonviolent video game. Compared with the violent video game group, the nonviolent video game group demonstrated more activation in some regions of the prefrontal cortex during the Counting Stroop task. In contrast to the violent video game group, significantly stronger functional connectivity between left dorsolateral prefrontal cortex (DLPFC) and anterior cingulate cortex (ACC) was identified in the nonviolent video game group. During an Emotional Stroop task, the violent video game group showed more activity in the right amygdala and less activation in regions of the medial prefrontal cortex (MPFC). Furthermore, functional connectivity analysis revealed the negative coupling between right amygdala and MPFC in the nonviolent video game group. By contrast, no significant functional connectivity between right amygdala and MPFC was found in the violent video game group. These results suggest differential engagement of neural circuitry in response to short term exposure to a violent video game as compared to a nonviolent video game.

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“…Moreover, in humans, impulsive aggression, as evidenced by acts of violence, is associated with reduced frontal lobe functioning [for review see Bufkin and Luttrell, 2005]. Patients suffering damage to the ventral prefrontal cortex show inappropriate social responses and disinhibition in addition to other deficits [Adolphs, 2001].…”

Section: Sex Differences In the Adult Brainmentioning

confidence: 99%

Sex and the Frontal Cortex: A Developmental CT Study in the Spotted Hyena

et al. 2010

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The purpose of this study was to examine developmental and individual variation in total endocranial volume and regional brain volumes, including the anterior cerebrum, posterior cerebrum and cerebellum/brain stem, in the spotted hyena (Crocuta crocuta). The spotted hyena is a highly gregarious animal noted for living in large, hierarchically organized groups. The social lives of male and female spotted hyenas do not differ until after puberty, when males disperse from the natal group, while females remain philopatric. Here we sought to determine whether the divergent life histories of male and female spotted hyenas are linked to differences in brain size or organization. Three-dimensional virtual endocasts were created using computed tomography from 46 spotted hyenas skulls (23 females, 22 males, 1 unknown sex) ranging in age from 1 day to 18 years. Brain volume and skull length were highly correlated (r = 0.91), and both reached asymptotic values by 34 months of age. Analyses of total endocranial volume (relative to skull length) and cerebellum/brain stem volume (relative to total endocranial volume) revealed no sex differences. However, relative anterior cerebrum volume, comprised mainly of frontal cortex, was significantly greater in adult males than adult females, and relative posterior cerebrum volume was greater in adult females than adult males. We hypothesize that the demands of neural processing underlying enhanced social cognition required for successful male transfer between matriarchical social groups at dispersal may be greater than cognitive demands on philopatric females.

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Neuroimaging Studies of Aggressive and Violent Behavior

Cited by 188 publications

References 47 publications

Violent criminality and self-compassion

Violent criminality and self-compassion

Short Term Exposure to a Violent Video Game Induces Changes in Frontolimbic Circuitry in Adolescents

Sex and the Frontal Cortex: A Developmental CT Study in the Spotted Hyena

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