Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2003
The disruptive effect of chronic pain on mismatch negativity.
Сравнительное исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Dick B D, Connolly J F, McGrath P J, Finley G A, Stroink G, Houlihan M E, Clark A J
Аннотация
OBJECTIVE: To investigate the effect of chronic pain on processes that generate the mismatch negativity (MMN).
METHODS: Twelve participants with a diagnosis of chronic intractable pain were tested before and after pain treatment. During testing, event-related potentials were recorded while participants performed tasks of varying difficulty.
RESULTS: The amplitude of the MMN was found to be greater following a nerve block procedure compared to MMN amplitude when participants were experiencing chronic pain. This effect was found to occur in the MMN for difficult-to-detect tones elicited while participants were performing a simultaneous cognitively demanding visual task. MMN amplitude was found to be greater with attention to difficult-to-detect deviants during pain but not in no pain conditions.
CONCLUSIONS: These results provide an electrophysiological correlate of previous findings that high levels of pain disrupt cognition during the performance of demanding tasks.
METHODS: Twelve participants with a diagnosis of chronic intractable pain were tested before and after pain treatment. During testing, event-related potentials were recorded while participants performed tasks of varying difficulty.
RESULTS: The amplitude of the MMN was found to be greater following a nerve block procedure compared to MMN amplitude when participants were experiencing chronic pain. This effect was found to occur in the MMN for difficult-to-detect tones elicited while participants were performing a simultaneous cognitively demanding visual task. MMN amplitude was found to be greater with attention to difficult-to-detect deviants during pain but not in no pain conditions.
CONCLUSIONS: These results provide an electrophysiological correlate of previous findings that high levels of pain disrupt cognition during the performance of demanding tasks.
Предметные рубрики MeSH
Acoustic StimulationAdultAnalysis of VarianceAnesthesiaAttentionChronic DiseaseContingent Negative VariationElectroencephalographyEvoked Potentials, AuditoryEvoked Potentials, VisualFemaleHumansMaleMiddle AgedPain MeasurementIntractable PainPhotic StimulationPsychomotor PerformanceReaction TimeSurveys and QuestionnairesTime FactorsVisual Perception