Evoked field
Encyclopedia : E : EV : EVO : Evoked field
Evoked fields are part of the magnetoencephalogram. They are brain signals evoked by sensory stimulation, but usually buried by the ongoing brain activity. Repeating the simulus multiple times and averaging the signals reduces the uncorrelated ongoing activity and reveals the evoked field.
Evoked fields are the magnetoencephalographic equivalent to evoked potentials, which are part of the electroencephalogram.
See also
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.