Investigating the relationship between resting-state EEG microstates and executive functions: A null finding
Résumé
Recent advances in cognitive neurosciences suggest that intrinsic brain networks dynamics
are associated with cognitive functioning. Despite this emerging perspective, limited
research exists to validate this hypothesis. This Registered Report aimed to specifically test
the relationship between intrinsic brain spatio-temporal dynamics and executive functions.
Resting-state EEG microstates were used to assess brain spatio-temporal dynamics, while a
comprehensive battery of nine cognitive function tasks was employed to evaluate executive
functions in 140 participants. We hypothesized that microstates (class C and D) metrics
would correlate with an executive functions composite score. Contrary to expectations, our
hypotheses were not supported by the data. We however observed a small, non-significant
trend with a negative correlation between microstate D occurrences and executive functions
scores (r ¼ .18, 95% CI [.33, .01]) which however did not meet the adjusted
threshold for significance. In light of the inconclusive or minor effect sizes observed, the
assertion that intrinsic brain networks dynamics as measured by resting-state EEG
microstate metrics are a reliable signature of executive functioning remains unsupported.
Domaines
NeurosciencesOrigine | Fichiers éditeurs autorisés sur une archive ouverte |
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