Brain electrical activity

From Health Encyclopedia

Contents 1 Used for 2 See for 3 Broader Terms 4 Narrower Terms 5 Related Terms 6 Scope Note 7 Facts (generated by robot; please edit if you find it inaccurate)

Used for

brain oscillography, contingent negative variation

See for

E wave, expectancy wave

Broader Terms

electrophysiology, neurophysiology

Narrower Terms

direct cortical response, kindling

Related Terms

electroencephalography, epilepsy, magnetoencephalography, psychic activity level, transcranial magnetic stimulation

Scope Note

voltages between parts of the brain that are detectable with an electroencephalograph.

Facts (generated by robot; please edit if you find it inaccurate)

• Brain electrical activity is modeled as being composed of a time sequence of nonoverlapping microstates with variable duration.
• Topographic mapping of brain electrical activity is a popular, powerful, and potentially misleading technique.
• "In other words," said Bauer, "a subtle abnormality in brain electrical activity is consistently present in these girls, even after the period of acute depression has passed.
• Electrodes are placed on the scalp and brain electrical activity is recorded while the subject lies quietly, breathes deeply, watches flashes of light, or sleeps.
• Information on brain electrical activity is typically obtained by performing evoked potential (EP) response measurements and electroencephelogram (EEG) measurements.

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