Investigating the relationship between resting-state EEG microstates and executive functions: A null finding.

Area of Science:

• Cognitive Neuroscience
• Neurophysiology

Background:

• Emerging research suggests intrinsic brain network dynamics correlate with cognitive functions.
• Limited empirical evidence validates the link between brain dynamics and executive functions.

Purpose of the Study:

• To investigate the relationship between intrinsic brain spatio-temporal dynamics and executive functions.
• To test if resting-state EEG microstate metrics predict executive functioning.

Main Methods:

• Resting-state EEG microstates were used to measure brain dynamics.
• A battery of nine cognitive tasks assessed executive functions in 140 participants.

Main Results:

• Hypotheses were not supported; no significant correlations were found.
• A non-significant trend showed a negative correlation between microstate D occurrences and executive function scores (r = -0.18).

Conclusions:

• The study did not find evidence supporting EEG microstate metrics as reliable signatures of executive functioning.
• Inconclusive effect sizes suggest current measures may not capture this relationship.