Somatically Evoked Magnetic Fields of the Human Brain

DOI Web Site 被引用文献20件
  • D. Brenner
    Department of Physics, New York University, New York 10003
  • J. Lipton
    Department of Physics, New York University, New York 10003
  • L. Kaufman
    Department of Physics, New York University, New York 10003
  • S. J. Williamson
    Department of Psychology, New York University, New York 10003

抄録

<jats:p>The human brain is found to produce a magnetic field near the scalp which varies in synchrony with periodic electrical stimulation applied to a finger. Use of a highly sensitive superconducting quantum interference device as a magnetic field detector reveals that the brain's field is sharply localized over the primary projection area of the sensory cortex contralateral to the digit being stimulated. The phase of the response at the stimulus frequency varies monotonically with the repetition rate and at intermediate frequencies yields a latency of approximately 70 milliseconds for cortical response.</jats:p>

収録刊行物

  • Science

    Science 199 (4324), 81-83, 1978-01-06

    American Association for the Advancement of Science (AAAS)

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