Alpha suppression

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Alpha suppression
Variations:

Mu suppression
Alpha blocking
Alpha desynchronization
Alpha-band suppression

Category: Alpha suppression
Parents:

Electroencephalography
Alpha wave
Event-related desynchronization

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Alpha suppression/mu suppression is a drop in the alpha wave power in the electroencephalography signal in the frequency band around 10 Hz.

Alpha suppression might occur during:

  • movie viewing in parieto-temporo-occipital region.[1]
  • acoustic stimuli with eyes close in over the C3 electrode.[2]
  • self-paced voluntary slow finger movement.[3]
  • contralateral face movement in the sensorimotor cortex[4]
  • contralateral arm movement in the sensorimotor cortex[5]
  • passive movements of contralateral arm[6]
  • metronome-paced sequential finger movement[7]

[edit] Papers

  1. Alpha-band suppression in the visual word form area as a functional bottleneck to consciousness
  2. Event-related desynchronization detected by power measurements of scalp EEG
  3. Event-related dynamics of cortical rhythms: frequency-specific features and functional correlates
  4. Event-related synchronization (ERS): an electrophysiological correlate of cortical areas at rest
  5. Functional segregation of movement-related rhythmic activity in the human brain
  6. Motor imagery activates primary sensorimotor area in humans
  7. Mu suppression as an index of sensorimotor contributions to speech processing: evidence from continuous EEG signals
  8. Mu wave suppression during the perception of meaningless syllables: EEG evidence of motor recruitment
  9. Suppression of the µ rhythm during speech and non-speech discrimination revealed by independent component analysis: implications for sensorimotor integration in speech processing
  10. The blocking of the Rolandic wicket rhythm and some central changes related to movement (1958)
  11. Towards a renaissance of 'alphas'

[edit] References

  1. EEG changes during cinematographic presentation
  2. Mu suppression as an index of sensorimotor contributions to speech processing: evidence from continuous EEG signals
  3. Event-related EEG/MEG synchronization and desynchronization: basic principles
  4. Functional significance of the mu rhythm of human cortex: an electrophysiologic study with subdural electrodes
  5. Functional significance of the mu rhythm of human cortex: an electrophysiologic study with subdural electrodes
  6. Functional significance of the mu rhythm of human cortex: an electrophysiologic study with subdural electrodes
  7. Task-related coherence and task-related spectral power changes during sequential finger movements
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