期刊
JOURNAL OF NEUROPSYCHIATRY AND CLINICAL NEUROSCIENCES
卷 29, 期 4, 页码 357-364出版社
AMER PSYCHIATRIC PUBLISHING, INC
DOI: 10.1176/appi.neuropsych.16090171
关键词
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Cognitive dysfunction and anhedonia, the reduced ability to experience pleasure, are commonly comorbid symptoms that are persistent following successful resolution of negative affect in major depressive disorder (MDD). Little is known about whether they share common etiology. In the present study, the relationship between ventrolateral prefrontal cortex (VLPFC) activity, cognitive dysfunction (i.e., executive dysfunction), and positive emotionality was investigated in conjunction with mu-opioid neurotransmission in a sample of 39 MDD patients. Results suggest that increased endogenous mu-opioid tone in the VLPFC mediates the relationship between increased trait positive emotionality and more efficient executive functioning.
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