scispace - formally typeset
Book ChapterDOI

Neurobiological Mechanisms for Impulsive-Aggression: The Role of MAOA

TLDR
Current data on the genetics and neurobiology of individual differences in impulsive-aggression are reviewed, with particular attention to the role of genetic variation in Monoamine Oxidase A and its impact on serotonergic signaling within corticolimbic circuitry.
Abstract
Aggression may be present across a large part of the spectrum of psychopathology, and underlies costly criminal antisocial behaviors. Human aggression is a complex and underspecified construct, confounding scientific discovery. Nevertheless, some biologically tractable subtypes are apparent, and one in particular—impulsive (reactive) aggression—appears to account for many facets of aggression-related dysfunction in psychiatric illness. Impulsive-aggression is significantly heritable, suggesting genetic transmission. However, the specific neurobiological mechanisms that mediate genetic risk for impulsive-aggression remain unclear. Here, we review extant data on the genetics and neurobiology of individual differences in impulsive-aggression, with particular attention to the role of genetic variation in Monoamine Oxidase A (MAOA) and its impact on serotonergic signaling within corticolimbic circuitry.

read more

Citations
More filters
Posted Content

Predicting Violent Behavior: What Can Neuroscience Add?

TL;DR: The current status of violence prediction using actuarial and clinical methods is reviewed, and several questions that need to be addressed by future studies of neuroprediction if neuroimaging and other neuroscientific markers are to be successfully translated into public policy are outlined.
Journal ArticleDOI

The role of monoamine oxidase A in the neurobiology of aggressive, antisocial, and violent behavior: A tale of mice and men.

TL;DR: How the convergence of human and animal research is proving helpful to understanding of how MAOA influences antisocial and violent behavior is shown and how it may assist in the development of preventative and therapeutic strategies for aggressive manifestations is shown.
Journal ArticleDOI

The Ventral Hippocampus Controls Stress-Provoked Impulsive Aggression through the Ventromedial Hypothalamus in Post-Weaning Social Isolation Mice

TL;DR: It is reported that acute stress activates ventral hippocampus (vHip) neurons to induce attack behavior in post-weaning socially isolated mice, and optogenetic inhibition of vHip neural activity blunts stress-provoked attack behavior, whereas chemogenetic activation promotes it.
Journal ArticleDOI

Nitric oxide interacts with monoamine oxidase to modulate aggression and anxiety-like behaviour

TL;DR: This cross-species approach challenges the previous notion that reduced neuronal NOS leads to increased aggression and finds Nos1 knock-out can also lead to decreased aggression in some situations, a finding that may have implications for future translational research.
References
More filters
Journal ArticleDOI

Role of Genotype in the Cycle of Violence in Maltreated Children

TL;DR: In this paper, a large sample of male children from birth to adulthood was studied to determine why some children who are maltreated grow up to develop antisocial behavior, whereas others do not.
Journal ArticleDOI

The Organization of Networks within the Orbital and Medial Prefrontal Cortex of Rats, Monkeys and Humans

TL;DR: The OMPFC appears to function as a sensory-visceromotor link, especially for eating, which appears to be critical for the guidance of reward-related behavior and for setting of mood.
Journal ArticleDOI

Abnormal behavior associated with a point mutation in the structural gene for monoamine oxidase A

TL;DR: Analytical results indicate that isolated complete MAOA deficiency in this family is associated with a recognizable behavioral phenotype that includes disturbed regulation of impulsive aggression.
Journal ArticleDOI

Impairment of social and moral behavior related to early damage in human prefrontal cortex.

TL;DR: Early-onset prefrontal damage resulted in a syndrome resembling psychopathy, suggesting that the acquisition of complex social conventions and moral rules had been impaired.
Journal ArticleDOI

Limbic connections of the orbital and medial prefrontal cortex in macaque monkeys.

TL;DR: This study has shown that the orbital and medial prefrontal cortex (OMPFC) is extensively connected with medial temporal and cingulate limbic structures, and the organization of these projections was defined in relation to architectonic areas within the OMPFC.
Related Papers (5)