对创伤类比记忆的厌恶反应与恐惧反应同样持久

People experience disgust during and following traumatic events, and like fear reactions—which have been the focus of posttraumatic stress disorder research—disgust reactions predict posttraumatic stress symptoms. Interestingly, emerging research suggests disgust reactions to traumatic events may persist more (i.e., linger longer) than fear reactions. Yet, this idea has not been explored experimentally. Here, we investigate whether feelings of disgust and fear in relation to a remembered trauma analogue persist differently over time. Across three experiments, participants viewed a trauma analogue (i.e., negative images) that elicited both disgust and fear. In Experiment 1 ( n = 111), we aimed to elicit maximal (i.e., highly intense) ratings of disgust and fear at encoding, and in Experiment 2 (n = 112), we modified our trauma analogue to match the intensity of disgust and fear reactions more closely at encoding. In these experiments, participants rated their feelings of disgust and fear to the trauma analogue at encoding and at 24-hr delay (i.e., upon remembering the trauma analogue). In Experiment 3 ( n = 118), we replicated our second experiment using a 1-week delay. Disgust and fear faded similarly when the intensity of emotional reactions was maximized at encoding, but when these emotional reactions were matched at an initial moderately intense level, disgust persisted more than fear over 24 hr and 1 week. Our findings suggest that disgust reactions to traumatic events are similarly—if not more—persistent over time than fear reactions, highlighting disgust as a trauma-relevant emotion. (PsycInfo Database Record (c) 2026 APA, all rights reserved)

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