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 milli-seconds for cortical response.
Several theorists have proposed that consciousness can be understood as an electromagnetic phenomenon. Their theories differ in how they relate consciousness to electromagnetism. For example, electromagnetic field theories (or "EM field theories") of consciousness propose that consciousness results when a brain produces an electromagnetic field with features that meet certain criteria; Susan Pockett and Johnjoe McFadden have proposed EM field theories; William Uttal has criticized McFadden's and other field theories, but without denying that consciousness could be an electromagnetic phenomenon.
Some electromagnetic theories are also quantum mind theories of consciousness; examples include quantum brain dynamics (QBD) approaches of Mari Jibu and Kunio Yasue[6] and of Giuseppe Vitiello. In general, however, quantum mind theories other than these QDB approaches do not treat consciousness as an electromagnetic phenomenon.
Also related are E. Roy John's work and Andrew and Alexander Fingelkurt's theory "Operational Architectonics framework of brain-mind functioning".
Several theorists have proposed that consciousness can be understood as an electromagnetic phenomenon. Their theories differ in how they relate consciousness to electromagnetism. For example, electromagnetic field theories (or "EM field theories") of consciousness propose that consciousness results when a brain produces an electromagnetic field with features that meet certain criteria; Susan Pockett and Johnjoe McFadden have proposed EM field theories; William Uttal has criticized McFadden's and other field theories, but without denying that consciousness could be an electromagnetic phenomenon.
Some electromagnetic theories are also quantum mind theories of consciousness; examples include quantum brain dynamics (QBD) approaches of Mari Jibu and Kunio Yasue[6] and of Giuseppe Vitiello. In general, however, quantum mind theories other than these QDB approaches do not treat consciousness as an electromagnetic phenomenon.
Also related are E. Roy John's work and Andrew and Alexander Fingelkurt's theory "Operational Architectonics framework of brain-mind functioning".
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A human brain does produce minute, though detectable magnetic fields because there are electric currents present. As neurons fire and link to other neurons, electrons flow. Any time electrons move, there is magnetic field, perpindicular to their direction of motion. Very small magnetic fields can be be detected due to the flow of electrons in the nervous system, as in the brain.