Cortical Spatio-temporal Dynamics Underlying Phonological Target Detection in Humans

@article{Chang2011CorticalSD,
  title={Cortical Spatio-temporal Dynamics Underlying Phonological Target Detection in Humans},
  author={Edward F. Chang and Erik Edwards and Srikantan S. Nagarajan and Noa Fogelson and Sarang S. Dalal and Ryan T. Canolty and Heidi E. Kirsch and Nicholas M. Barbaro and Robert T. Knight},
  journal={Journal of Cognitive Neuroscience},
  year={2011},
  volume={23},
  pages={1437-1446}
}
Selective processing of task-relevant stimuli is critical for goal-directed behavior. We used electrocorticography to assess the spatio-temporal dynamics of cortical activation during a simple phonological target detection task, in which subjects press a button when a prespecified target syllable sound is heard. Simultaneous surface potential recordings during this task revealed a highly ordered temporal progression of high gamma (HG, 70–200 Hz) activity across the lateral hemisphere in less… CONTINUE READING

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