Xavier De Almeida-Marques, FranciscoSanchez-Blanco, JoseJavier Cano-Garcia, Francisco2023-02-122023-02-122018-01-010020-7144http://hdl.handle.net/10668/18925To determine whether hypnosis is more effective than conventional interviewing to find traumatic life events in patients with fibromyalgia, we carried out a within-subject experimental design with complete intragroup counterbalancing. Thirty-two women under care in a public primary care center gave 2 identical interviews, with an interval of 3months, in which the occurrence of traumatic life events was explored, once in a state of wakefulness and once in a state of hypnosis. The state of consciousness was evaluated using 3 measures: bispectral index, skin conductance level, and pain intensity. In the hypnotic state, the patients expressed 9.8 times more traumatic life events than in the waking state, a statistically significant difference with a large effect size.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Chronic painLife eventsAbuseCareDisabilitySymptomsCriteriaImpactresearch articleopen access10.1080/00207144.2018.13961041744-5183https://idus.us.es/bitstream/11441/70514/1/postprint_hypnosis_effective_cano.pdf423484400002