TY - JOUR PY - 2018// TI - Impulsive aggression and response inhibition in attention-deficit/hyperactivity disorder and disruptive behavioral disorders: findings from a systematic review JO - Neuroscience and biobehavioral reviews A1 - Puiu, Andrei A. A1 - Wudarczyk, Olga A1 - Goerlich, Katharina S. A1 - Votinov, Mikhail A1 - Konrad, Kerstin A1 - Turetsky, Bruce A1 - Herpertz-Dahlmann, Beate SP - 231 EP - 246 VL - 90 IS - N2 - BACKGROUND: Although impulsive aggression (IA) and dysfunctional response inhibition (RI) are hallmarks of attention-deficit/hyperactivity disorder (ADHD) and disrupted behavioral disorders (DBDs), little is known about their shared and distinct deviant neural mechanisms. AIMS AND METHODS: Here, we selectively reviewed s/fMRI ADHD and DBD studies to identify disorder-specific and shared IA and RI aberrant neural mechanisms.

RESULTS: In ADHD, deviant prefrontal and cingulate functional activity was associated with increased IA. Structural alterations were most pronounced in the cingulate cortex. Subjects with DBDs showed marked cortico-subcortical dysfunctions. ADHD and DBDs share similar cortico-limbic structural and functional alterations. RI deficits in ADHD highlighted hypoactivity in the dorso/ventro-lateral PFC, insula, and striatum, while the paralimbic system was primarily dysfunctional in DBDs. Across disorders, extensively altered cortico-limbic dysfunctions underlie IA, while RI was mostly associated with aberrant prefrontal activity.

CONCLUSION: Control network deficits were evidenced across clinical phenotypes in IA and RI. Dysfunctions at any level within these cortico-subcortical projections lead to deficient cognitive-affective control by ascribing emotional salience to otherwise irrelevant stimuli. The clinical implications of these findings are discussed.

Copyright © 2018. Published by Elsevier Ltd.

Language: en

LA - en SN - 0149-7634 UR - http://dx.doi.org/10.1016/j.neubiorev.2018.04.016 ID - ref1 ER -