Sleep and the generalization of fear learning
| Autor: | Mikael Johansson, Ingegerd Carlsson, Peter Jönsson, Per Davidson |
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| Rok vydání: | 2015 |
| Předmět: |
Adult
Male Cognitive Neuroscience education Fear-potentiated startle Generalization Psychological 050105 experimental psychology Developmental psychology Young Adult 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Generalization (learning) Conditioning Psychological medicine Humans Learning 0501 psychology and cognitive sciences Fear conditioning Wakefulness Conditioning (Psychology) 05 social sciences Classical conditioning Fear General Medicine Anxiety Disorders Generalization (Psychology) Nap Anxiety Female medicine.symptom Sleep Psychology 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Journal of Sleep Research. 25:88-95 |
| ISSN: | 0962-1105 |
| Popis: | Fear conditioning is an important survival mechanism, as is the ability to generalize learned fear responses to stimuli that are similar to the original conditioned stimulus. Overgeneralization of fear learning, prominent in many anxiety disorders, is however highly maladaptive. Because sleep is involved in the consolidation of fear learning, and in active processing of information, the present study explored the effect of sleep on generalization of fear learning. Participants watched a random sequence of pictures of a small and a big circle, one of them coupled with an aversive sound. Then, after a delay period containing either a nap or wake, generalization was examined as participants watched the two circles again, together with eight novel circles that gradually varied in size between the former two. Results showed that the fear response increased as a function of similarity to the conditioned response. However, there was no difference in the degree of generalization between the sleep and the wake group. |
| Databáze: | OpenAIRE |
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