Analysis of Electrophysiological State Patterns and Changes During Hypnosis Induction
Thilo Hinterberger, Julian Schöner, Ulrike Halsband
International Journal of Clinical and Experimental Hypnosis February 28, 2011 DOI: 10.1080/00207144.2011.546188 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Case study Case report Peer reviewed |
|---|---|
| Sample size | 1 |
| Population | One highly hypnotically susceptible subject |
| Intervention | Hypnosis |
| Citations | 34 |
| Key findings | Electrophysiological state changes occurred synchronously with specific induction instructions, including sensorimotor desynchronization over the right hemispheric hand area during left arm levitation and a highly significant increase in broadband activity during stepwise trance induction, which may point to a deep hypnotic state. |
Abstract
Hypnosis can be seen as a guided induction of various states of consciousness. This article details a time-series analysis that visualized the electrophysiological state changes during a session as a correlate to the instructions. Sixty-four channels of EEG and peripheral physiological measures were recorded in 1 highly susceptible subject. Significant state changes occurred synchronously with specific induction instructions. Some patterns could be physiologically explained, such as sensorimotor desynchronization over the right hemispheric hand area during left arm levitation. There was a highly significant increase in broadband activity during the stepwise trance induction that may point to a deep hypnotic state. This study provides illustrated proof for the detectability of physiological state changes as correlates to different states of awareness, consciousness, or cognition during hypnosis.