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Do Alpha Oscillations Predict Body Ownership Information's Access to Conscious Awareness?
University of Skövde, School of Bioscience.
2026 (English)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Body ownership depends on the integration of visual, tactile, and proprioceptive signals, but the neural mechanisms linking multisensory bodily integration to conscious awareness remain unclear. This preliminary EEG study examined whether posterior parietal alpha-band activity predicts temporal integration and perceptual awareness sensitivity during bodily self-perception. Seven participants completed a two-rubber-hand body ownership task and a matched synchronicity task while EEG was recorded. In each trial, participants made a two-alternative forced-choice judgement and rated the clarity of their perceptual experience. Behavioural analyses showed that Type-1 sensitivity increased with visuotactile asynchrony, indicating that the tasks captured sensitivity to temporal discrepancies between seen and felt touch. Temporal binding window estimates were narrower in the ownership task than in the synchronicity task. However, individual alpha frequency did not show the predicted negative association with temporal binding window width. Alpha peak power at individual alpha frequency was positively but non-significantly associated with meta-d′ in both tasks. These findings do not yet provide reliable evidence that alpha-band measures predict conscious awareness of body ownership information. Nevertheless, the study establishes a viable framework for linking psychophysical measures of body ownership, perceptual awareness ratings, and individualised EEG measures of alpha activity.

Place, publisher, year, edition, pages
2026. , p. 41
Keywords [en]
body ownership, self-awareness, alpha oscillations, temporal binding window, consciousness
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:his:diva-27014OAI: oai:DiVA.org:his-27014DiVA, id: diva2:2097688
External cooperation
Karolinska Institutet
Subject / course
Cognitive Neuroscience
Educational program
Kognitiv neurovetenskap: Medvetandet och hjärnan - magisterprogram
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Examiners
Available from: 2026-09-02 Created: 2026-09-02 Last updated: 2026-09-02Bibliographically approved

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1819202122232421 of 57
CiteExportLink to record
Permanent link

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Citation style
  • apa
  • apa-cv
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
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  • sv-SE
  • Other locale
More languages
Output format
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