Introspection confidence predicts EEG decoding of self-generated thoughts and meta-awareness

Polychroni, Naya; Herrojo Ruiz, Maria and Terhune, Devin Blair. 2022. Introspection confidence predicts EEG decoding of self-generated thoughts and meta-awareness. Human Brain Mapping, 43(7), pp. 2311-2327. ISSN 1065-9471 [Article]

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Abstract or Description

The neurophysiological bases of mind wandering (MW) – an experiential state wherein attention is disengaged from the external environment in favour of internal thoughts, and state meta-awareness are poorly understood. In parallel, the relationship between introspection confidence in experiential state judgements and neural representations remains unclear. Here, we recorded EEG whilst participants completed a listening task within which they made experiential state judgments and rated their confidence. Alpha power was reliably greater during MW episodes, with unaware MW further associated with greater delta and theta power. Multivariate pattern classification analysis revealed that MW, and meta-awareness can be decoded from the distribution of power in these three frequency bands. Critically, we show that individual decoding accuracies positively correlate with introspection confidence. Our results reaffirm the role of alpha oscillations in MW, implicate lower frequencies in meta-awareness, and are consistent with the proposal that introspection confidence indexes neurophysiological discriminability of representational states.

Item Type:

Article

Identification Number (DOI):

https://doi.org/10.1002/hbm.25789

Additional Information:

MHR was partially funded by the Basic Research Program of the National Research University Higher School of Economics (Russian Federation).

Keywords:

confidence, EEG, meta-awareness, mind wandering, support vector machine

Related URLs:

Departments, Centres and Research Units:

Psychology

Dates:

DateEvent
May 2022Published
5 February 2022Published Online
29 December 2021Accepted
1 March 2021Submitted

Item ID:

30994

Date Deposited:

06 Jan 2022 15:53

Last Modified:

27 Apr 2022 14:10

Peer Reviewed:

Yes, this version has been peer-reviewed.

URI:

https://research.gold.ac.uk/id/eprint/30994

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