Probing the association between resting-state brain network dynamics and psychological resilience
Dominik Kraft1, Christian J Fiebach1,2
1Department of Psychology, Goethe University Frankfurt, Frankfurt, Germany.
This study found no significant link between brain network flexibility and psychological resilience. Results suggest previous associations may be unreliable due to analysis variations.
Area of Science:
- Neuroscience
- Psychology
- Network Science
Background:
- Previous research suggested a negative correlation between brain network flexibility and psychological resilience.
- Psychological resilience is the capacity to maintain mental well-being under stress.
Purpose of the Study:
- To replicate the previously reported negative correlation between node flexibility and psychological resilience.
- To investigate the relationship between brain network dynamics and an individual's ability to withstand adversity.
Main Methods:
- Utilized multiband resting-state BOLD fMRI data from 52 participants.
- Calculated time-resolved functional connectivity using a sliding window approach and multilayer modularity detection.
- Assessed node flexibility, node promiscuity, and node degree, alongside resilience scores from psychological questionnaires.
Main Results:
- No substantial correlations were found between node flexibility and resilience.
- A small number of inconsistent correlations were observed between other brain network measures (promiscuity, degree) and resilience scores.
- Results varied significantly based on analytical choices, temporal sampling, and parcellation schemes.
Conclusions:
- The findings question the existence of previously postulated associations between brain network flexibility and psychological resilience.
- The heterogeneity of results highlights the critical influence of specific analytical decisions on study outcomes.
- Further research is needed to clarify the complex relationship between brain network dynamics and mental resilience.
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