Indian Journal of PsychiatryIndian Journal of Psychiatry
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ARTICLE
Year : 1997  |  Volume : 39  |  Issue : 1  |  Page : 61-63

EEG Delta Band Spectral Power : Differneces Between Unilateral and Bilateral ECT Seizures


1 Associate Professor, Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, India
2 Senior Resident, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, India
3 Additional Professor, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, India
4 Research Scholar Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, India
5 Associate Professor, Department of Biostatics, National Institute of Mental Health and Neurosciences, Bangalore, India
6 Senior Resident, Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, India

Correspondence Address:
B N Gangadhar
Additional Professor, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore
India
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Source of Support: None, Conflict of Interest: None


PMID: 21584046

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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.



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