Overgeneralization of fear, but not avoidance, following acute stress
| Autor: | Anke Lemmens, Tom Beckers, Pauline Dibbets, Sahaj Kang, Tom Smeets |
|---|---|
| Přispěvatelé: | Section Clinical Psychology, RS: FPN CPS III, Medical and Clinical Psychology |
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
INCREASES ANXIETY DISORDERS media_common.quotation_subject Conditioning Classical INHIBITION Social Sciences MAST Fear conditioning Stimulus (physiology) Audiology CONDITIONED FEAR Affect (psychology) VALIDATION Generalization Psychological Cognition Perception Generalization (learning) Stress (linguistics) medicine Avoidance Learning Psychology Humans Acute stress media_common Expectancy theory Science & Technology Psychology Biological EXPECTANCY BIAS Psychology Experimental General Neuroscience MEMORY Avoidance generalization Extinction (psychology) Fear Fear generalization INDIVIDUALS EXTINCTION Neuropsychology and Physiological Psychology Life Sciences & Biomedicine Behavioral Sciences POTENTIATED STARTLE |
| Zdroj: | Biological Psychology, 164:108151. Elsevier Science Biological Psychology, 164:108151. Elsevier Science BV |
| ISSN: | 1873-6246 0301-0511 |
| Popis: | Research has demonstrated the spreading of fear from threat-related stimuli to perceptually similar, but innocuous, stimuli. Less is known, however, about the generalization of avoidance behavior. Given that stress is known to affect learning and memory, we were interested in the effect of acute stress on (over)generalization of fear and avoidance responses. On the first day, one geometrical shape was paired with a mild electrical stimulus (CS+), whereas another shape was not (CS-). One day later, after participants had been exposed to the Maastricht Acute Stress Test or a control task, generalization of avoidance responses and fear (shock expectancy and skin conductance responses) was tested to a range of perceptual generalization stimuli. Generalization gradients were observed across different outcome measures. Stress enhanced generalization of shock expectancy to the stimulus most similar to the CS+. Our findings confirm that stress can affect the generalization of fear, but further studies are warranted. ispartof: BIOLOGICAL PSYCHOLOGY vol:164 ispartof: location:Netherlands status: published |
| Databáze: | OpenAIRE |
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