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Psychiatr Danub ; 35(4): 515-522, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37992096

RESUMO

INTRODUCTION: 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. SUBJECTS AND 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. DISCUSSION: 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. CONCLUSION: 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.


Assuntos
Transtornos Psicóticos , Esquizofrenia Paranoide , Humanos , Emoções , Transtornos Psicóticos/psicologia , Nível de Alerta , Percepção Social , Expressão Facial
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