TY - JOUR PY - 2018// TI - Some neuroanatomical insights to impulsive aggression in schizophrenia JO - Schizophrenia Research A1 - Leclerc, Marcel P. A1 - Regenbogen, Christina A1 - Hamilton, Roy H. A1 - Habel, Ute SP - 27 EP - 34 VL - 201 IS - N2 - Patients with schizophrenia are at increased risk of engaging in violence towards others, compared to both the general population and most other patient groups. We have here explored the role of cortico-limbic impairments in schizophrenia, and have considered these brain regions specifically within the framework of a popular neuroanatomical model of impulsive aggression. In line with this model, evidence in patients with aggressive schizophrenia implicated structural deficits associated with impaired decision-making, emotional control and evaluation, and social information processing, especially in the orbitofrontal and ventrolateral prefrontal cortex. Given the pivotal role of the orbitofrontal and ventrolateral cortex in emotion control and evaluation, structural deficits may result in inappropriate use of socially relevant information and improper recognition of impulses that are in need for regulation. Furthermore, we have extended the original model and incorporated the striatum, important for the generation of aggressive impulses, as well as the hippocampus, a region critical for decision-making, into the model. Lastly, we discuss the question whether structural impairments are specific to aggressive schizophrenia. Our results suggest, that similar findings can be observed in other aggressive patient populations, making the observed impairments non-specific to aggressive schizophrenia. This points towards a shared condition, across pathologies, a potential common denominator being impulsive aggression.

Copyright © 2018. Published by Elsevier B.V.

Language: en

LA - en SN - 0920-9964 UR - http://dx.doi.org/10.1016/j.schres.2018.06.016 ID - ref1 ER -