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Online Transcranial Magnetic Stimulation Protocol for Measuring Cortical Physiology Associated with Response Inhibition
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Transcallosal Inhibition during Motor Imagery: Analysis of a Neural Mass Model.
Anna L Mangia1, Mauro Ursino1, Maurizio Lannocca1
1Department of Electrical, Electronic and Information Engineering, University of BolognaCesena, Italy.
Frontiers in Computational Neuroscience
|July 18, 2017
Summary
Neural mass models simulate how sensorimotor cortex activity influences beta band event-related desynchronization (ERD) and synchronization (ERS). Findings support the Theory of Inhibition, showing one cortex exciting another leads to reciprocal inhibition.
Area of Science:
- Neuroscience
- Computational Neuroscience
- Brain Activity Analysis
Background:
- Somatosensory cortex exhibits beta band (14-30 Hz) event-related desynchronization (ERD) and synchronization (ERS) during tasks and stimuli.
- Imagination of movement suggests reciprocal activation and deactivation between sensorimotor areas.
Purpose of the Study:
- To enhance understanding of the neural mechanisms generating beta ERD/ERS.
- To model information transmission between cortical areas using neural mass models (NMM).
Main Methods:
- Interconnected two neural mass models (NMM) of cortical columns based on Wendling et al. (2002).
- Simulated information transmission between cortical areas to observe ERD/ERS dynamics.
Main Results:
- Simulations demonstrated that excitation of one cortex leads to inhibition of the other, and vice versa.
- This reciprocal inhibition supports the Theory of Inhibition.
- The observed behavior is dependent on the initial working point (WP) of neural populations and its modulation by cortical activation/deactivation.
Conclusions:
- The study provides a computational model explaining reciprocal interactions between cortical areas.
- Findings highlight the critical role of the initial working point in determining ERD/ERS phenomena.
- The results reinforce the Theory of Inhibition in the context of sensorimotor cortex activity.
