Abstract
BackgroundHypnotic susceptibility is one of the stable characteristics of individuals, but not closely related to the personality traits such as those measured by the five-factor model in the general population. Whether it is related to the personality disorder functioning styles remains unanswered.MethodsIn 77 patients with personality disorders and 154 healthy volunteers, we administered the Stanford Hypnotic Susceptibility Scale: Form C (SHSSC) and the Parker Personality Measure (PERM) tests.ResultsPatients with personality disorders showed higher passing rates on SHSSC Dream and Posthypnotic Amnesia items. No significant correlation was found in healthy volunteers. In the patients however, SHSSC Taste hallucination (β = 0.26) and Anosmia to Ammonia (β = -0.23) were significantly correlated with the PERM Borderline style; SHSSC Posthypnotic Amnesia was correlated with the PERM Schizoid style (β = 0.25) but negatively the PERM Narcissistic style (β = -0.23).ConclusionsOur results provide limited evidence that could help to understand the abnormal cognitions in personality disorders, such as their hallucination and memory distortions.
Highlights
Hypnotic susceptibility is one of the stable characteristics of individuals, but not closely related to the personality traits such as those measured by the five-factor model in the general population
Being a stable characteristic [2], it hardly correlates with normal personality traits [3,4]
Higher hypnotic susceptibility has been reported in patients suffering from posttraumatic stress disorder (PTSD) [5], acute stress disorder [6], or dissociative identity disorder (DID, known as multiple personality disorder) [7,8], while lower in schizophrenia patients [7,9]
Summary
Hypnotic susceptibility is one of the stable characteristics of individuals, but not closely related to the personality traits such as those measured by the five-factor model in the general population. Most of these, heterogeneous, cover at least two out of the three main factors of hypnosis: (1) responding to calls for motor performance (direct suggestion, such as lowering your hand), (2) performing certain acts (loss of arbitrary motor control, such as inability to lift your hand), and (3) responding to suggestion for changes in participants’ perception, memory, and cognition One such assessment is the Stanford Hypnotic Susceptibility Scale: Form C (SHSSC) [12], which included all three factors, and has been extensively used in searching for relationships between hypnotic susceptibility and normal personality traits in general populations and in clinics [13,14]
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