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Hypnotizability May Relate to Interoceptive Ability to Accurately Perceive Sleep Depth: An Exploratory Study
Maren Jasmin Cordi1,2, Bjoern Rasch1,2
1Department of Psychology, Division of Cognitive Biopsychology and Methods, University of Fribourg, Switzerland.
The International Journal of Clinical and Experimental Hypnosis
|October 13, 2022
Summary
High hypnotizability does not affect sleep onset latency perception. However, highly hypnotizable individuals show a stronger correlation between perceived sleep depth and actual slow-wave sleep, suggesting enhanced interoception.
Area of Science:
- Psychology
- Sleep Science
- Neuroscience
Background:
- Hypnotizability is associated with altered consciousness and attentional shifts.
- Accurate sleep perception may involve interoception of internal bodily changes.
Purpose of the Study:
- To investigate the relationship between hypnotizability and the accuracy of sleep perception.
- To compare sleep perception accuracy in high versus low hypnotizability groups.
Main Methods:
- Meta-analysis of seven sleep lab studies (n=231).
- Comparison of subjective sleep estimations (Sleep Onset Latency, sleep depth) with objective polysomnography data.
- Assessment of hypnotizability levels in participants.
Main Results:
- Hypnotizability did not influence the accuracy of perceived Sleep Onset Latency or time awake.
- A significant correlation was found between reported sleep depth and measured slow-wave sleep in high hypnotizability individuals.
- No significant differences in objective sleep patterns were observed based on hypnotizability.
Conclusions:
- High hypnotizability is linked to more accurate perception of sleep depth, likely due to superior interoceptive abilities.
- Interoception plays a crucial role in how individuals perceive their sleep quality.
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