Hypnotic analgesia: 1. Somatosensory event-related potential changes to noxious stimuli and 2. Transfer learning to reduce chronic low back pain

摘要: Fifteen adults with chronic low back pain (M = 4 years), age 18 to 43 years 29 participated. All but one were moderately highly hypnotizable 7.87; modified 11-point Stanford Hypnotic Susceptibility Scale, Form C [Weitzenhoffer & Hilgard, 1962]), and significantly reduced perception following hypnotic analgesia instructions during cold-pressor training. In Part 1, somatosensory event-related potential correlates of noxious electrical stimulation evaluated attend (HA) conditions at anterior frontal (Fp1, Fp2), midfrontal (F3, F4), central (C3, C4), parietal (P3, P4) regions. During HA, hypothesized inhibitory processing was evidenced by enhanced N140 in the region a prestimulus positive-ongoing contingent cortical Fp1 only. decreased spatiotemporal amplitudes P200 (bilateral central, left parietal) P300 (right central). HA led significant mean reductions perceived sensory distress. is an active process that requires effort, dissociated from conscious awareness, where cortex participates topographically specific feedback circuit cooperates allocation thalamocortical activities. 2, authors document development self-efficacy through successful transfer participants newly learned skills experimental reduction their own pain. Over three sessions, reported reduction, increased psychological well-being, sleep quality. The "neurosignatures pain" can influence subsequent experiences (Coderre, Katz, Vaccarino, Melzack, 1993; 1993) may be expanded size easily reactivated (Flor Birbaumer, 1994; 1991, 1993). Therefore, hypnosis other interventions need introduced early as adjuncts medical treatments for onset before