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Indian J Psychiatry. 1997 Jan;39(1):61-3.

EEG delta band spectral power: differneces between unilateral and bilateral ect seizures.

Author information

1
D. NARAYANA DUTT, Ph.D., Associate Professor, Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore.

Abstract

EEG was recorded from right and left frontal leads during bilateral (n=11) and unilateral (n=l4) ECTs. The seizure EEG was analyzed using East Fourier 'Transform and the spectral power oj the Delta (1-4 Hz) band was computed. The spectral power on both sides was similar in the bilateral ECT. Unilateral ECT produced asymmetry in the early - (first 8 seconds after stimulus offset) and mid - (17-32 seconds after the stimulus offset) siezure phases; the spectral power was lower on the unstimulated hemisphere. Studies to elucidate the relevance of EEG delta band of the seizure to therapeutic potency of ECT are suggested.

KEYWORDS:

ECT; EEG; bilateral; unilateral

PMID:
21584046
PMCID:
PMC2967085

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