The effect of emotional faces on reward-related probability learning in depressed patients

心理学 重性抑郁障碍 萧条(经济学) 突出 认知 认知偏差 神经科学 临床心理学 认知心理学 发展心理学 人工智能 计算机科学 经济 宏观经济学
作者
D. Keskin-Gökcelli,Gozde Kizilates-Evin,Seda Eroğlu,Kaya Oğuz,Cenk Eraslan,Ömer Kitiş,Ali Saffet Gönül
出处
期刊:Journal of Affective Disorders [Elsevier BV]
卷期号:351: 184-193 被引量:1
标识
DOI:10.1016/j.jad.2024.01.247
摘要

Existing research indicates that individuals with Major Depressive Disorder (MDD) exhibit a bias toward salient negative stimuli. However, the impact of such biased stimuli on concurrent cognitive and affective processes in individuals with depression remains inadequately understood. This study aimed to investigate the effects of salient environmental stimuli, specifically emotional faces, on reward-associated processes in MDD. Thirty-three patients with recurrent MDD and thirty-two healthy controls (HC) matched for age, sex, and education were included in the study. We used a reward-related associative learning (RRAL) task primed with emotional (happy, sad, neutral) faces to investigate the effect of salient stimuli on reward-related learning and decision-making in functional magnetic resonance imaging (fMRI). Participants were instructed to ignore emotional faces during the task. The fMRI data were analyzed using a full-factorial general linear model (GLM) in Statistical Parametric Mapping (SPM12). In depressed patients, cues primed with sad faces were associated with reduced amygdala activation. However, both HC and MDD group exhibited reduced ventral striatal activity while learning reward-related cues and receiving rewards. The patients'medication usage was not standardized. This study underscores the functional alteration of the amygdala in response to cognitive tasks presented with negative emotionally salient stimuli in the environment of MDD patients. The observed alterations in amygdala activity suggest potential interconnected effects with other regions of the prefrontal cortex. Understanding the intricate neural connections and their disruptions in depression is crucial for unraveling the complex pathophysiology of the disorder.
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