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Larger left hippocampal presubiculum is associated with lower risk of antisocial behavior in healthy adults with childhood conduct history.

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Abdolalizadeh, AmirHussein 
Moradi, Kamyar 
Dabbagh Ohadi, Mohammad Amin 
Mirfazeli, Fatemeh Sadat 
Rajimehr, Reza 


Conduct Disorder (CD) is defined as aggressive, antisocial, and rule-breaking behavior during childhood. It is a major risk factor for developing antisocial personality disorder (ASPD) in adulthood. However, nearly half the CDs do not develop ASPD. Identification of reversion factors seems crucial for proper interventions. We identified 40 subjects with childhood history of CD (CC) and 1166 control subjects (HC) from Human Connectome Project. Their psychiatric, emotional, impulsivity, and personality traits were extracted. An emotion recognition task-fMRI analysis was done. We also did subregion analysis of hippocampus and amygdala in 35 CC and 69 demographically matched HCs. CC subjects scored significantly higher in antisocial-related evaluations. No differences in task-fMRI activation of amygdala and hippocampus were observed. CCs had larger subfields of the left hippocampus: presubiculum, CA3, CA4, and dentate gyrus. Further, an interaction model revealed a significant presubiculum volume × group association with antisocial, aggression, and agreeableness scores. Our study shows that healthy young adults with a prior history of CD still exhibit some forms of antisocial-like behavior with larger left hippocampal subfields, including presubiculum that also explains the variability in antisocial behavior. These larger left hippocampal subfield volumes may play a protective role against CD to ASPD conversion.



Young Adult, Humans, Antisocial Personality Disorder, Hippocampus, Temporal Lobe, Magnetic Resonance Imaging, Parahippocampal Gyrus

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Springer Science and Business Media LLC