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Cerebral magnetic fields.

R Hari, R J Ilmoniemi

    Critical Reviews in Biomedical Engineering
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Neuromagnetism studies neural functions by measuring brain magnetic fields. This review covers its principles, instrumentation, and experimental results in healthy and epileptic subjects, outlining future prospects.

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    Area of Science:

    • Neuromagnetism
    • Biophysics
    • Neuroscience

    Background:

    • Explores the neural origin of electromagnetic fields.
    • Defines the forward problem (calculating magnetic fields from brain currents) and the inverse problem (calculating brain currents from measured magnetic fields).

    Purpose of the Study:

    • Presents the state-of-the-art in neuromagnetism.
    • Reviews instrumentation, experimental results, and future prospects.

    Main Methods:

    • Discusses the principles of the forward and inverse problems in neuromagnetism.
    • Highlights instrumentation for neuromagnetic measurements, focusing on new developments.
    • Reviews experimental findings from spontaneous and evoked magnetic fields.

    Main Results:

    Related Experiment Videos

    • Covers studies on spontaneous cerebral magnetic fields in normal and epileptic subjects.
    • Reviews evoked-field studies across sensory modalities.
    • Includes studies on event-related fields.

    Conclusions:

    • Summarizes current advancements in neuromagnetism.
    • Discusses the relevance and future directions of the field.