Stephane A De Brito, Jack C Rogers, Ruth Pauli, Gregor Kohls, Nora M Raschle, Anne Martinelli, Areti Smaragdi, Karen Gonzalez-Madruga, Harriet Cornwell, Christina Stadler, Kerstin Konrad, Christine M Freitag, Graeme Fairchild
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引用次数: 0
Abstract
Background: Functional magnetic resonance imaging studies of conduct disorder (CD) have mostly been limited to males. Here, we examined whether male and female youths with CD showed similar or distinct alterations in brain responses to emotional faces, using a large sample of male and female youths with CD. We also investigated the influence of callous-unemotional (CU) traits.
Methods: Brain responses to angry, fearful, and neutral faces were assessed in 161 youths with CD (74 female) and 241 typically developing (TD) youths (139 female) ages 9 to 18 years. Categorical analyses tested for diagnosis effects (CD vs. TD and CD with high levels of CU traits [CD/HCU] vs. low levels of CU traits [CD/LCU] vs. TD) and sex × diagnosis interactions.
Results: When processing faces in general (all faces vs. baseline), youths with CD exhibited lower amygdala responses compared with TD youths, which seemed to be driven by the CD/HCU subgroup. Sex × CU subgroup interactions were identified in the amygdala (CD/LCU females < TD females; CD/LCU males > TD males) and anterior insula (CD/HCU females > CD/LCU females; CD/HCU males < CD/LCU males).
Conclusions: The findings for males support an influential neurocognitive model of CD. However, the association between CU traits and brain response to facial expressions differed in females and males with CD, suggesting distinct pathophysiological processes.
期刊介绍:
Biological Psychiatry is an official journal of the Society of Biological Psychiatry and was established in 1969. It is the first journal in the Biological Psychiatry family, which also includes Biological Psychiatry: Cognitive Neuroscience and Neuroimaging and Biological Psychiatry: Global Open Science. The Society's main goal is to promote excellence in scientific research and education in the fields related to the nature, causes, mechanisms, and treatments of disorders pertaining to thought, emotion, and behavior. To fulfill this mission, Biological Psychiatry publishes peer-reviewed, rapid-publication articles that present new findings from original basic, translational, and clinical mechanistic research, ultimately advancing our understanding of psychiatric disorders and their treatment. The journal also encourages the submission of reviews and commentaries on current research and topics of interest.