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EEG responses to shamanic drumming. Does suggestion of trance state mediate the strength of frequency components?
Umeå University, Faculty of Social Sciences, Department of Psychology.
2016 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

One of the techniques used to induce trance state in shamanic ceremonies is monotonous drumming. According to previous EEG research, certain patterns of drumming cause an increase in power of alpha and theta frequencies of the listener. Present study aimed to determine, if suggestion to experience trance state could increase the relative alpha and theta amplitude and the intensity of experienced state. A group of twenty-four subjects participated in the study. Suggestion to experience trance state decreased alpha frequency power during the drumming condition. No other significant effects of suggestion or drumming were found.

Place, publisher, year, edition, pages
2016. , 23 p.
Keyword [en]
shamanic trance drumming EEG PCI suggestion
National Category
Psychology Ethnology
URN: urn:nbn:se:umu:diva-122923OAI: diva2:942601
Educational program
Master's Programme in Cognitive Science
Available from: 2016-06-28 Created: 2016-06-25 Last updated: 2016-06-28Bibliographically approved

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