title: EEG sLORETA functional imaging during hypnotic arm levitation and voluntary arm lifting.
abstract: This study (N = 37 with high, medium, and low hypnotizables) evaluated depth reports and EEG activity during both voluntary and hypnotically induced left-arm lifting with sLORETA functional neuroimaging. The hypnotic condition was associated with higher activity in fast EEG frequencies in anterior regions and slow EEG frequencies in central-parietal regions, all left-sided. The voluntary condition was associated with fast frequency activity in right-hemisphere central-parietal regions and slow frequency activity in left anterior regions. Hypnotizability did not have a significant effect on EEG activity, but hypnotic depth correlated with left hemisphere increased anterior slow EEG and decreased central fast EEG activity. Hypnosis had a minimal effect on depth reports among lows, a moderate one among mediums, and a large one among highs. Because only left-arm data were available, the full role of the hemispheres remains to be clarified.
authors.affiliation: Department of Psychology, Lund University, Lund, Sweden. Etzel.Cardena@psychology.lu.se
authors.forename: Etzel
authors.initials: E
authors.lastname: Cardeña
authors.forename: Dietrich
authors.initials: D
authors.lastname: Lehmann
authors.forename: Pascal L
authors.initials: PL
authors.lastname: Faber
authors.forename: Peter
authors.initials: P
authors.lastname: Jönsson
authors.forename: Patricia
authors.initials: P
authors.lastname: Milz
authors.forename: Roberto D
authors.initials: RD
authors.lastname: Pascual-Marqui
authors.forename: Kieko
authors.initials: K
authors.lastname: Kochi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001132:Arm; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D005260:Female; D059907:Functional Neuroimaging; D006801:Humans; D006990:Hypnosis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009068:Movement / Q000502:physiology*; D010296:Parietal Lobe / Q000502:physiology; D055815:Young Adult