Key result
Higher low-frequency heart rate variability and specific patterns of resting-state functional connectivity variability were significantly associated with more errors on the CAMBIOS cognitive flexibility test.
Why the study?
The neurovisceral integration model proposes a neuronal network linking heart rate activity and cognitive performance, but the relationship between heart rate variability, resting-state electroencephalographic functional connectivity variability, and cognitive flexibility required investigation.
Does resting-state heart rate variability and EEG functional connectivity variability correlate with cognitive flexibility in healthy young adults?
Population
Thirty-eight right-handed students
Comparison
Groups divided according to CAMBIOS performance
Design
Cross-sectional study
Authors
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Suggests a complex, indirect heart-brain axis in executive function; leaves open whether modulating autonomic tone.
Cross-Sectional (n=38)
No
Does resting-state heart rate variability and EEG functional connectivity variability correlate with cognitive flexibility in healthy young adults?
p-value: p=<0.001
Resting-state brain signal variability directly predicts cognitive flexibility, whereas heart rate variability predicts cognitive flexibility only indirectly through mediation by neuronal oscillations.
Alba et al. (2019) conducted a cross-sectional in Healthy (n=38). Heart rate variability and resting-state functional connectivity variability was evaluated on Correlation between CAMBIOS test performance (Error subscore) and physiological parameters (HRV indices and SampEn-FCm) (p=<0.001). Higher low-frequency heart rate variability and specific patterns of resting-state functional connectivity variability were significantly associated with more errors on the CAMBIOS cognitive flexibility test.
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