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Cited by 193

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Spectral analysis methods for neurological signals

Open access
Muthuswamy, Jitendran, Thakor, Nitish V.·1998·Journal of Neuroscience Methods

Abstract

This paper reviews some novel spectral analysis techniques that are useful for neurological signals in general and EEG signals in particular. First, some drawbacks and limitations of the commonly used Fast Fourier transforms (FFTs) are presented, and then alternative algorithms are outlined. An auto-regressive (AR) modeling based spectral estimation procedure is presented to overcome the problems of lower resolution and 'leakage' effects inherent in the FFT algorithm. For signals which are transient in nature or rapidly time-varying, two alternative algorithms are presented. The first is an adaptive AR parameter estimation algorithm and the second is a wavelet based time-frequency representation algorithm. Finally, a Spectral Distance measure and the Itakura distance measure are presented to quantify the differences between the spectra of two signals in a succinct manner. The application and performance of all the algorithms is illustrated using electroencephalograms (EEGs) recorded in animals during hypoxic asphyxic injury to brain.

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Metadata

Authors
Muthuswamy, J., & Thakor, N. V.
Venue
Journal of Neuroscience Methods
Publisher
Elsevier BV
Published
1998-08
Volume
83
Issue
1
Pages
1-14
ISSN
0165-0270 (ISSN-L)
OpenAlex
W2088082588
Cited by
193
References
1
FWCI
2.11
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Spectral analysis methods for neurological signals. https://app.cochat.ai/papers/10.1016/s0165-0270(98)00065-x
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Muthuswamy, J., & Thakor, N. V. (1998). Spectral analysis methods for neurological signals. Journal of Neuroscience Methods. https://doi.org/10.1016/s0165-0270(98)00065-x

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