Mu rhythm

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  • Frequency: 8-12 Hz
  • More sharply than Alpha rhythm
  • Most prominent in central regions
  • Frequency asymmetry of >1 Hz is abnormal
  • Mu rhythm is suppressed by contralateral opening and closing of the fist.

Mu rhythm in a 5 year old boy (source)

Mu 5 year old left en right frequency 9,8 e.png

Mu reactivity, by closing the left fist in a 65 year old woman with eyes opened (source)

Mu reactivity 65 year old woman eyes opened (source) eegpedia.png