关键词: Schizophrenia delusion emotional salience misattribution neutral perception stimuli

Mesh : Humans Schizophrenia, Paranoid Emotions Psychotic Disorders / psychology Arousal Social Perception Facial Expression

来  源:   DOI:10.24869/psyd.2023.512

Abstract:
BACKGROUND: Misattribution of motivational salience to non-salient (neutral) stimuli could be viewed as a hallmark of psychosis in schizophrenia. Studies have recently revealed increased subjective experience of emotional arousal (EA) to neutral social stimuli in paranoid schizophrenia psychosis, suggesting a misattribution of emotional salience to them. We examined this phenomenon directly by quantifying the level of EA subjectively attributed to low-arousal, neutral-valenced faces.
METHODS: A task for EA attribution to neutral (in the context of affective) facial expressions was applied to 44 actively psychotic paranoid schizophrenia inpatients and 44 well-matched healthy controls.
RESULTS: Psychotic patients, compared with healthy controls, rated the neutral faces as more aroused (t (86) = 3.15, p =.001) thus misattributing emotional salience to them.
CONCLUSIONS: This finding supports the hypothesis that over-assignment of EA to neutral faces could be viewed as a subclinical affective mechanism of the clinically manifested experience of delusional perception.
CONCLUSIONS: The study provides the first direct empirical evidence for misattribution of emotional salience in terms of over-attribution of EA to neutral faces during acute paranoid schizophrenia psychosis.
摘要:
背景:动机显着性与非显着性(中性)刺激的错误归因可被视为精神分裂症中精神病的标志。最近的研究表明,在偏执型精神分裂症精神病中,情感唤醒(EA)对中性社会刺激的主观体验有所增加,暗示了他们对情感显著性的错误归因。我们通过量化主观归因于低觉醒的EA水平直接检查了这一现象,中性配价面。
方法:将EA归因为中性(在情感方面)面部表情的任务应用于44名积极精神病性偏执型精神分裂症住院患者和44名匹配良好的健康对照。
结果:精神病患者,与健康对照相比,将中性面孔评定为更被唤醒(t(86)=3.15,p=.001),因此错误地将情绪显着性归因于它们。
结论:这一发现支持了以下假设:将EA过度分配给中性面孔可被视为妄想知觉临床表现的亚临床情感机制。
结论:该研究提供了第一个直接的经验证据,证明在急性偏执型精神分裂症精神病期间,EA过度归因于中性面孔。
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