Sustained anterior cingulate cortex activation during reward processing predicts response to psychotherapy in major depressive disorder

JOURNAL OF AFFECTIVE DISORDERS

卷:203

Article

Carl, Hannah¹  Walsh, Erin²  Eisenlohr-Moul, Tory³  Minkel, Jared^3,4  Crowther, Andrew⁵  Moore, Tyler³  Gibbs, Devin³  Petty, Chris⁶  Bizzell, Josh^3,6,7  Dichter, Gabriel S.^3,4,5,6,7  Smoski, Moria J.¹ 

[1] Duke Univ, Dept Psychol & Neurosci, Durham, NC 27710 USA

[2] Univ N Carolina, Sch Med, Program Integrat Med, Chapel Hill, NC 27599 USA

[3] Univ N Carolina, Sch Med, Dept Psychiat, CB 7155, Chapel Hill, NC 27599 USA

[4] Duke Univ, Med Ctr, Dept Psychiat & Behav Sci, Durham, NC 27710 USA

[5] Univ N Carolina, Sch Med, UNC Neurobiol Curriculum, Chapel Hill, NC 27599 USA

[6] Duke Univ, Med Ctr, Duke UNC Brain Imaging & Anal Ctr, Durham, NC 27710 USA

[7] Univ N Carolina, Sch Med, Carolina Inst Dev Disabil, Chapel Hill, NC 27599 USA

关键词: Major depressive disorder;    Reward;    Anhedonia;    Functional magnetic resonance imaging;    Nucleus accumbens;    Psychotherapy;   

DOI  :  10.1016/j.jad.2016.06.005

来源: Elsevier

【 摘 要 】

Background: The purpose of the present investigation was to evaluate whether pre-treatment neural activation in response to rewards is a predictor of clinical response to Behavioral Activation Therapy for Depression (BATD), an empirically validated psychotherapy that decreases depressive symptoms by increasing engagement with rewarding stimuli and reducing avoidance behaviors. Methods: Participants were 33 outpatients with major depressive disorder (MDD) and 20 matched controls. We examined group differences in activation, and the capacity to sustain activation, across task runs using functional magnetic resonance imaging (fMRI) and the monetary incentive delay (MID) task. Hierarchical linear modeling was used to investigate whether pre-treatment neural responses predicted change in depressive symptoms over the course of BATD treatment. Result: MDD and Control groups differed in sustained activation during reward outcomes in the right nucleus accumbens, such that the MDD group experienced a significant decrease in activation in this region from the first to second task run relative to controls. Pretreatment anhedonia severity and pretreatment task-related reaction times were predictive of response to treatment. Furthermore, sustained activation in the anterior cingulate cortex during reward outcomes predicted response to psychotherapy; patients with greater sustained activation in this region were more responsive. to BATD treatment. Limitation: The current study only included a single treatment condition, thus it unknown whether these predictors of treatment response are specific to BATD or psychotherapy in general. Conclusion: Findings add to the growing body of literature suggesting that the capacity to sustain neural responses to rewards may be a critical endophenotype of MDD. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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