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Cited by 43Hemispheric Asymmetry in NeurosciencePain Management and Placebo EffectNeural dynamics and brain function

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Hemispheric activity of 40 Hz EEG during recall of emotional events: differences between low and high hypnotizables

De Pascalis, Vilfredo, Marucci, Francesco S., Penna, Pietronilla M., Pessa, Eliano·1987·International Journal of Psychophysiology
DOI 10.1016/0167-8760(87)90003-1
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Abstract

This study evaluates individual differences in hypnotizability as reflected in waking-state hemispheric engagement during recollection of 3 positively and 3 negatively valenced personal life events. The State-Trait Anxiety Inventory, Maudsley Personality Inventory, Tellegen Absorption Scale and Harvard Group Scale of Hypnotic Susceptibility (Form A) were administered. Electromyogram (EMG) and bilateral electroencephalogram (EEG) activities within the 40-Hz band were recorded during rest and task conditions in 22 high and 21 low hypnotizable women. Self-report rating scores for vividness of visual imagery and emotional feeling of the material recalled were evaluated. The 40-Hz EMG amplitude and both hemisphere 40-Hz EEG densities were obtained. A 40-Hz EEG ratio, as a measure of hemispheric asymmetry, and a hemispheric specificity index were also computed. High hypnotizables showed significantly lower 40-Hz EEG density than low hypnotizables in all experimental conditions. The relationship between lateralization of 40-Hz EEG and emotional processing was moderated by hypnotizability. High hypnotizables, with respect to rest condition, showed an increase of density over both left and right hemispheres during two of the three positive emotional tasks, while they showed a depressed activity over the left and an increased activity over the right during negative emotional tasks. Low hypnotizables, on the other hand, did not exhibit differential hemispheric patterns that could be att…

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  • Other studies have found lower levels of gamma power in highs relative to lows, and decreases in gamma with hypnotic analgesia suggestions among highs.

    “Other studies have found lower levels of gamma power in highs, relative to lows (De Pascalis, Marucci, Penna, & Pessa, 1987) and decreases in gamma with hypnotic analgesia suggestions among highs (De Pascalis, Cacace, & Massicolle, 2004).”

    From Brain oscillations, hypnosis, and hypnotizability (2015) · cites this paper as De Pascalis, Marucci, Penna, & Pessa, 1987

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Research works printed but not linked: 48

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Metadata

Authors
De Pascalis, V., Marucci, F. S., Penna, P. M., & Pessa, E.
Affiliations
Sapienza University of Rome (IT)
Venue
International Journal of Psychophysiology
Publisher
Elsevier BV
Published
1987-10
Volume
5
Issue
3
Pages
167-180
ISSN
0167-8760 (ISSN-L)
DOI
10.1016/0167-8760(87)90003-1
OpenAlex
W1972996005
Cited by
43
References
0
Citations by year
2024: 2 · 2023: 2 · 2022: 1 · 2020: 1 · 2015: 3 · 2014: 1 · 2013: 2
FWCI
2.29
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • International Journal of Psychophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • UNICA IRIS Institutional Research Information System (University of Cagliari) (submittedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hemispheric Asymmetry in Neuroscience
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Pain Management and Placebo Effect
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
hypnotic susceptibility, hemispheric lateralization, emotional valence, individual differences, visual imagery vividness, feelings, electromyography, absorption, anxiety
MeSH terms
Adult, Brain, Electroencephalography, Electromyography, Emotions, Female, Humans, Hypnosis, Functional Laterality

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