Open AccessIntrospection confidence predicts EEG decoding of self‐generated thoughts and meta‐awareness
Author(s) -
Polychroni Naya,
Herrojo Ruiz Maria,
Terhune Devin B.
Publication year - 2022
Publication title -
human brain mapping
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.005
H-Index - 191
eISSN - 1097-0193
pISSN - 1065-9471
DOI - 10.1002/hbm.25789
Subject(s) - introspection , psychology , mind wandering , electroencephalography , active listening , neurophysiology , experiential learning , cognitive psychology , neural correlates of consciousness , decoding methods , cognition , neuroscience , communication , computer science , mathematics education , telecommunications
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 while participants completed a listening task within which they made experiential state judgements 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.