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ArticleEuropean archives of psychiatry and clinical neuroscience2026

The association between anhedonia and prefrontal cortex activation in patients with major depression: a functional near-infrared spectroscopy study.

Li-Fen Chen, Ching-En Lin, Chi-Hsiang Chung, Yong-An Chung, Sonya Youngju Park, Wei-Chou Chang, Chuan-Chia Chang, Hsin-An Chang

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Article in European archives of psychiatry and clinical neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Li-Fen ChenGraduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan.
Ching-En LinDepartment of Psychiatry, Taipei Tzu Chi Hospital, New Taipei City, Taiwan.
Chi-Hsiang ChungSchool of Public Health, National Defense Medical Center, Taipei, Taiwan.
Yong-An ChungDepartment of Nuclear Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
Sonya Youngju ParkDepartment of Nuclear Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
Wei-Chou ChangDepartment of Radiology, Tri-Service General Hospital, Taipei, Taiwan.
Chuan-Chia Chang *Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, No. 325, Cheng-Kung Road, Sec. 2, Nei-Hu District, Taipei, 114, Taiwan. changcc@mail.ndmctsgh.edu.tw.
Hsin-An Chang *Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan. chang.ha@mail.ndmctsgh.edu.tw.ORCID http://orcid.org/0000-0001-5572-7109

Funding

National Science and Technology Council NSTC-112-2314-B-016-017-MY3Tri-Service General Hospital TSGH_A_113015
6 · The paper itself

Abstract

This study investigated cerebral blood flow characteristics using functional nearinfrared spectroscopy (fNIRS) in agomelatine-treated depressed patients with anhedonia. The level of anhedonia was assessed by the Snaith Hamilton Rating Scale (SHAPS) and Montgomery Åsberg Depression Rating Scale 5-item (MADRS 5-item) score. All 84 patients were evaluated on the day of the study initiation and followed at week 1, 4 and 8 after the study initiation. Graph theory-based network analysis showed 2-back task-modulated global efficiency (adjusted B = 0.055, 95% CI = 0.043 - 0.066) and local efficiency (adjusted B = 0.066, 95% CI = 0.050 - 0.081) were significantly increased 1 week after treatment compared with the baseline. Furthermore, the increased oxy-hemoglobin (oxy-Hb) values from the baseline to the one week after treatment was positively related to the total MADRAS 5-item score reductions in the left-hemispheric orbitofrontal cortex (r = - 0.307, p = 0.005). Our findings suggest that abnormal functional connectivity over OFC may reflect the pathophysiological characteristics of anhedonia and serve as a clinical biomarker for anhedonia.

Indexed as

AnhedoniaCerebrovascular CirculationMajor Depressive DisorderPrefrontal CortexAcetamidesAdultAntidepressive AgentsFemaleHumansMaleMiddle AgedNaphthalenesSpectroscopy, Near-InfraredAcetamidesagomelatineAntidepressive AgentsNaphthalenesAnhedoniaBrain imageFunctional brain infrared spectroscopyMajor depressive disorder

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.