Shutting down sensorimotor interference unblocks the networks for stimulus processing: an SMR neurofeedback training...

Area of Science:

• Neuroscience
• Cognitive Psychology
• Neurofeedback

Background:

• Sensorimotor cortex electrical activity influences cognitive processing.
• Higher sensorimotor rhythm (SMR) activity is linked to reduced interference and enhanced cognition.
• SMR neurofeedback training aims to modulate SMR activity for cognitive benefits.

Purpose of the Study:

• To investigate how sensorimotor cortex electrical activity affects cognitive processing.
• To determine if SMR neurofeedback training can modulate SMR activity and improve cognitive functions.
• To explore the electrophysiological correlates of SMR-induced cognitive improvements.

Main Methods:

• Randomized controlled trial with an experimental (SMR neurofeedback) and a control (sham feedback) group.
• Participants underwent 10 sessions of neurofeedback training.
• Cognitive functions and event-related potentials (ERPs) were assessed pre- and post-training.

Main Results:

• The SMR neurofeedback group showed increased SMR power, linked to behavioral improvements in memory and attention.
• Increased SMR activity correlated with enhanced stimulus processing, evidenced by larger N1 and P3 ERP amplitudes.
• Reduced functional brain connectivity between motor and visual areas indicated decreased sensorimotor interference.

Conclusions:

• SMR neurofeedback effectively improves stimulus processing and cognitive performance.
• Findings enhance understanding of SMR neurofeedback mechanisms.
• SMR neurofeedback shows potential as a cognitive training intervention.