Opposite patterns of change in perception of imagined and physically induced pain over the course of repeated thermal stimulations.
Background: Individuals frequently show habituation to repeated noxious heat. However, given the defensive function of human pain processing, it is reasonable to assume that individuals anticipate that they would become increasingly sensitive to repeated thermal pain stimuli. No previous studies hav...
| Publicado en: | European Journal of Pain Vol. 21; no. 7; pp. 1165 - 1173 |
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| Autores principales: | , , |
| Formato: | clinical trial research Journal Article |
| Publicado: |
Wiley-Blackwell
Aug2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=124091688&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 124091688 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10903801 8IG jtl: European Journal of Pain issn: 10903801 maglogo: Y pubinfo: dt: Aug2017 vid: 21 iid: 7 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 124091688 124091688 NLM28230300 124091688 10.1002/ejp.1017 NLM28230300 124091688 ppf: 1165 ppct: 8 formats: tig: atl: Opposite patterns of change in perception of imagined and physically induced pain over the course of repeated thermal stimulations. aug: au: Gács, B. Szolcsányi, T. Csathó, Á. affil: Institute of Behavioral Sciences, University of Pécs, Hungary sug: subj: Pain Physiopathology Pain Physiology Imagination Heat Temperature Research Subjects Physical Examination Human Clinical Trials ab: Background: Individuals frequently show habituation to repeated noxious heat. However, given the defensive function of human pain processing, it is reasonable to assume that individuals anticipate that they would become increasingly sensitive to repeated thermal pain stimuli. No previous studies have, however, been addressed to this assumption. Therefore, in the current study, we investigated how healthy human individuals imagine the intensity of repeated thermal pain stimulations, and compared this with the intensity ratings given after physically induced thermal pain trials.Methods: Healthy participants (N = 20) gave pain intensity ratings in two conditions: imagined and real thermal pain. In the real pain condition, thermal pain stimuli of two intensities (minimal and moderate pain) were delivered in four consecutive trials. The duration of the peak temperature was 20 s, and stimulation was always delivered to the same location. In each trial, participants rated the pain intensity twice, 5 and 15 s after the onset of the peak temperature. In the imagined pain condition, participants were subjected to a reference pain stimulus and then asked to imagine and rate the same sequence of stimulations as in the induced pain condition.Results: Ratings of imagined pain and physically induced pain followed opposite courses over repeated stimulations: Ratings of imagined pain indicated sensitization, whereas ratings for physically induced pain indicated habituation. The findings were similar for minimal and moderate pain intensities.Conclusions: The findings suggest that, rather than habituating to pain, healthy individuals imagine that they would become increasingly sensitive to repeated thermal pain stimuli.Significance: This study identified opposite patterns of change in perception of imagined pain (sensitization) and physically induced pain (habituation). The findings show that individuals anticipate that they would become increasingly sensitive to repeated pain stimuli, which might also have clinical implications. pubtype: Academic Journal doctype: clinical trial research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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