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EEG Mu Rhythm in Typical and Atypical Development
Published on: April 9, 2014
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EEG mu rhythm in typical and atypical development.
Raphael Bernier1, Benjamin Aaronson2, Anna Kresse3
1Department of Psychiatry, University of Washington; Department of Educational Psychology, University of Washington; rab2@u.washington.edu.
Journal of Visualized Experiments : Jove
|April 22, 2014
Summary
Electroencephalography (EEG) mu rhythm can assess the mirror neuron system (MNS), potentially revealing insights into autism spectrum disorder (ASD) social deficits. This noninvasive method examines brain activity linked to social cognition.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Developmental Neuroscience
Background:
- Electroencephalography (EEG) offers high temporal resolution for studying brain activity related to behaviors and stimuli.
- The EEG mu rhythm (8-12 Hz) is suppressed during action execution or observation, proposed to reflect mirror neuron system (MNS) activity.
- MNS dysfunction is theorized to contribute to the social deficits observed in autism spectrum disorder (ASD).
Purpose of the Study:
- To investigate the utility of EEG mu rhythm as a noninvasive index for assessing MNS activity.
- To explore the potential of this method for examining social cognitive functions in individuals with typical and atypical development, including ASD.
Main Methods:
- Utilizing electroencephalography (EEG) to record brain activity, specifically focusing on the mu rhythm.
- Measuring the attenuation of the EEG mu rhythm during specific behavioral or observational tasks.
- Applying this protocol to individuals with typical development and those with autism spectrum disorder (ASD).
Main Results:
- EEG mu rhythm suppression serves as a measurable index for MNS activity.
- The protocol demonstrates feasibility for assessing MNS function noninvasively in clinical populations.
- Potential differences in mu rhythm attenuation may be observable between individuals with and without ASD.
Conclusions:
- EEG mu rhythm attenuation is a viable noninvasive method to assess MNS function.
- This approach can be used to investigate the role of the MNS in social cognition across developmental trajectories.
- Further research using this EEG protocol may elucidate the neural underpinnings of social deficits in ASD.

