Motor cortex dynamics in visuomotor production of speech and non-speech mouth movements.

@article{Saarinen2006MotorCD,
  title={Motor cortex dynamics in visuomotor production of speech and non-speech mouth movements.},
  author={Timo Saarinen and Hannu Laaksonen and Tiina Parviainen and Riitta Salmelin},
  journal={Cerebral cortex},
  year={2006},
  volume={16 2},
  pages={
          212-22
        }
}
We investigated timing and hemispheric balance of motor cortex activation when kinetically similar speech and non-speech mouth movements and sequences of such movements were triggered by visually presented letter- and symbol-strings. As an index of motor cortex activation, we used magnetoencephalographic recording of task-related change of precentral 20 Hz (16-24 Hz) activity. Suppression of the 20 Hz rhythm revealed pre-movement activation in the face representation areas that was tied to… CONTINUE READING

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