Inhibitory Control and Brain-Heart Interaction: An HRV-EEG Study.

Area of Science:

• Neuroscience
• Cognitive Science
• Psychophysiology

Background:

• Motor inhibition is a complex cognitive function influenced by the Central Autonomic Network.
• Investigates the bidirectional brain-heart interaction during a Go/NoGo task.
• EEG spectral power bands (theta and alpha) and heart rate variability (HRV) parameters were recorded.

Purpose of the Study:

• To explore the two-way brain-heart interaction during inhibitory control.
• To establish a combined brain-heart model for understanding inhibitory control abilities.
• To examine the relationship between EEG oscillations, HRV, and performance in a Go/NoGo task.

Main Methods:

• Fourteen healthy volunteers performed a modified Go/NoGo task with varying complexity.
• Participants were categorized into Good Performers (GP) and Poor Performers (PP) groups.
• EEG (theta and alpha power) and HRV (Complexity Index, LF, HF) were analyzed in relation to task performance.

Main Results:

• Baseline: Complexity Index (CI) negatively correlated with alpha/theta (α/ϑ).
• Task 1: CI negatively correlated with errors and α/ϑ; errors positively correlated with α/ϑ.
• Task 2: CI negatively correlated with Reaction Time and positively with alpha (α); errors negatively correlated with Reaction Time and positively with α/ϑ. GP group showed negative correlation between CI and α/ϑ at baseline.

Conclusions:

• A novel combined brain-heart model for inhibitory control is proposed.
• Results support the complementary roles of alpha and theta oscillations in cognitive control.
• Brain-heart interactions, reflected in EEG and HRV, are crucial for effective motor inhibition.