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  • Title: The varied relationship between hypnosis and dissociative phenomena: Implications for traumatology.
    Author: Cleveland JM, Reuther BT, Gold SN.
    Journal: Am J Clin Hypn; 2020 Oct; 63(2):139-149. PubMed ID: 33118882.
    Abstract:
    Although metanalytic evidence exists to support the long-term efficacy of hypnotic interventions in the treatment of trauma, assertions that hypnosis may induce trauma or exacerbate existing posttraumatic reactions through activating dissociative processes seem to persist in some circles. While multiple studies have established that hypnotic induction produces dissociative phenomena, what has not yet been clearly explicated is the degree to which varieties of dissociative phenomena differentially elicited by hypnotic induction tend to skew toward the pathological or nonpathological end of the continuum of dissociation. The authors of the current study explore the connection between hypnotic susceptibility and facets of dissociation, employing the Harvard Group Scale of Hypnotic Susceptibility: A (HGSHS:A) and the State Scale of Dissociation (SSD). A significantly greater change in state dissociation was observed in their hypnosis condition as compared with a novel control condition (t (82) = 3.235, p =.002, d =.70), confirming that a relationship appears to exist between hypnosis and dissociation. A discussion of the differential effect of hypnosis on SSD subscales follows, specifically indicating less activation of the more putatively pathological facets, namely identity confusion and identity alteration. This finding may serve to assuage some concerns around the potential for iatrogenesis in working with traumatized patients.
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