Key result
Cortical dynamics drive heartbeat series with specific time delays in the range of 30 to 60 seconds and 90 to 120 seconds from the onset of peripheral thermal stress during a cold-pressor test.
Why the study?
Existing computational models of functional brain-heart interplay do not provide directional estimation in a time-resolved and probabilistic fashion.
Does a cold-pressor test alter directional functional brain-heart interplay in healthy volunteers compared to a resting state?
Observational (n=24)
Does a cold-pressor test alter directional functional brain-heart interplay in healthy volunteers compared to a resting state?
A novel probabilistic framework using inhomogeneous point-process models successfully quantifies time-resolved, directional brain-to-heart information transfer, revealing specific cortical-cardiac delays during thermal stress.
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May reflect stress-related brain-heart coupling; leaves open validation for clinical autonomic assessment.
Catrambone et al. (2021) conducted an observational in Healthy volunteers (n=24). Cold-pressor test (CPT) vs. Resting state was evaluated on Directional information transfer from EEG to heartbeat dynamics (IB→H). Cortical dynamics drive heartbeat series with specific time delays in the range of 30 to 60 seconds and 90 to 120 seconds from the onset of peripheral thermal stress during a cold-pressor test.
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