Type of Surgery
Last updated: 02/17/2009
Chin, W. C., and T. C. Head. Essentials of Clinical Neurophysiology, 3rd ed. London: Butterworth-Heinemann, 2002.
Daube, J. R. Clinical Neurophysiology, 2nd edition. New York:Oxford...
University Press, 2002.
Ebersole, J. S., and T. A. Pedley. Current Practice of ClinicalElectroencephalography, 3rd ed. Philadelphia: Lippincott Williams & Wilkins, 2002.
Rowan, A. J., and E. Tolunsky. Primer of EEG. London: Butterworth-Heinemann, 2003.
De Clercq, W., P. Lemmerling, S. Van Huffel, and W. Van Paesschen. "Anticipation of Epileptic Seizures from Standard EEG Recordings."Lancet 361, no. 9361 (2003): 971โ972.
Harden, C. L., F. T. Burgut, and A. M. Kanner. "The DiagnosticSignificance of Video-EEG Monitoring Findings on Pseudoseizure Patients Differs Between Neurologists and Psychiatrists."Epilepsia 44, no. 3 (2003): 453โ456.
Stepien, R. A. "Testing for Non-linearity in EEG Signal ofHealthy Subjects."Acta Experimental Neurobiology 62, no. 4 (2002): 277โ281.
Vanhatalo, S., M. D. Holmes, P. Tallgren, J. Voipio, K. Kaila, and J. W. Miller. "Very Slow EEG Responses Lateralize Temporal Lobe Seizures: An Evaluation of Non-invasive DC-EEG."Neurology 60, no. 7 (2003): 1098โ1104.
American Board of Registration for ElectroencephalographicTechnologists. P.O. Box 916633, Longwood, FL 32791-6633 .
Electroencephalography (EEG) is the measurement of electrical activity produced by the brain as recorded from electrodes placed on the scalp.
Just as the activity in a computer can be understood on multiple levels, from the activity of individual transistors to the function of applications, so can the electrical activity of the brain be described on relatively small to relatively large scales. At one end are action potentials in a single axon or currents within a single dendrite of a single neuron, and at the other end is the activity measured by the EEG which aggregates the electric voltage fields from millions of neurons. So-called scalp EEG is collected from tens to hundreds of electrodes positioned on different locations at the surface of the head. EEG signals (in the range of milli-volts) are amplified and digitalized for later processing. The data measured by the scalp EEG are used for clinical and research purposes. In neurology, the main diagnostic application of EEG is for epilepsy but this technique is also used to investigate many other pathologies such as sleep-related disorders, sensory deficits, brain tumors, etc. In cognitive neuroscience, EEG is used to investigate the neural correlates of mental activity from low-level perceptual and motor processes to higher-order cognition (attention, memory, reading, etc).
Select comparative data from 1999 to 2006 include a decrease of 14 percent in the number of neurosurgeons in private practice and a decrease of 13 percent in the number of neurosurgeons in solo practice.
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