Can experimentally induced positive affect attenuate generalization of fear of movement-related pain?
| Autor: | Ann Meulders, Johan W.S. Vlaeyen, Nicole Geschwind, Michel Meulders, Madelon L. Peters |
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| Přispěvatelé: | Clinical Psychological Science, RS: FPN CPS I, RS: FPN CPS III |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Adult
medicine.medical_specialty Adolescent media_common.quotation_subject Movement Transfer Psychology Stimulus (physiology) Audiology Developmental psychology Nociceptive Pain CHRONIC MUSCULOSKELETAL PAIN Young Adult Optimism AVOIDANCE MODEL Conditioning Psychological medicine Fear of movement-related pain Humans Learning Fear conditioning fear generalization media_common Expectancy theory Psychological Tests ACQUISITION Chronic pain Classical conditioning best positive self Fear RESILIENCE medicine.disease Electric Stimulation STATE Associative learning Affect voluntary movement paradigm Anesthesiology and Pain Medicine EMOTIONS Neurology Turnover OPTIMISM Regression Analysis Female Neurology (clinical) Self Report Psychology positive affect safety signal |
| Zdroj: | The Journal of Pain, 16(3), 258-269. Churchill Livingstone |
| ISSN: | 1526-5900 |
| DOI: | 10.1016/j.jpain.2014.12.003 |
| Popis: | Recent experimental data show that associative learning processes are involved not only in the acquisition but also in the spreading of pain-related fear. Clinical studies suggest involvement of positive affect in resilience against chronic pain. Surprisingly, the role of positive affect in associative learning in general, and in fear generalization in particular, has received scant attention. In a voluntary movement paradigm, in which one arm movement (reinforced conditioned stimulus [CS+]) was followed by a painful stimulus and another was not (unreinforced conditioned stimulus [CS–]), we tested generalization of fear inhibition in response to 5 novel but related generalization movements (GSs; within-subjects) after either a positive affect induction or a control exercise (Group = between-subjects) in healthy participants (N = 50). The GSs' similarity with the original CS+ movement and CS– movement varied. Fear learning was assessed via verbal ratings. Results indicated that there was an interaction between the increase in positive affect and the linear generalization gradient. Stronger increases in positive affect were associated with steeper generalization curves because of relatively lower pain–unconditioned stimulus expectancy and less fear of stimuli more similar to the CS–. There was no Group by Stimulus interaction. Results thus suggest that positive affect may enhance safety learning through promoting generalization from known safe movements to novel yet related movements. Improved safety learning may be a central mechanism underlying the association between positive affect and increased resilience against chronic pain. Perspective We investigated the extent to which positive affect influences the generalization (ie, spreading) of pain-related fear inhibition in response to situations similar to the original, pain-eliciting situation. Results suggest that increasing positive affect in the acute pain stage may limit the spreading of pain-related fear, thereby potentially inhibiting transition to chronic pain conditions. |
| Databáze: | OpenAIRE |
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