An alpha modulation index for electroencephalographic studies using complex demodulation

Medical and Biological Engineering and Computing

Volumn 38, Issue 3, 2000, Pages 306-310

  Schroeder, M J ^a   Barr, R E ^a  

^a The University of Texas at Austin   (United States)

Author keywords

Alpha modulation; Alpha rhythm; Complex demodulation; Electroencephalogram

Indexed keywords

AMPLITUDE MODULATION; CORRELATION METHODS; DEMODULATION; FREQUENCIES; PATIENT MONITORING; PHYSIOLOGY;

ALPHA ACTIVITY; ALPHA MODULATION INDEX; ALPHA RHYTHM; COMPLEX DEMODULATION; THRESHOLD TECHNIQUE;

ELECTROENCEPHALOGRAPHY;

ALPHA RHYTHM; ARTICLE; AUTOANALYSIS; ELECTROENCEPHALOGRAM; FREQUENCY MODULATION; HUMAN;

EID: 0034080424     PISSN: 01400118     EISSN: None     Source Type: Journal    
DOI: 10.1007/BF02347051     Document Type: Article

References (16)

1. ADEY, W. R., and WALTER, D. O. (1963): 'Application of phase detection and averaging techniques in computer analysis of EEG records in the cat', Exp. Neurol., 7, pp. 186-209
2. ANDREASSI, J. L. (1980): 'Psychophysiology: human behavior and physiological response (Oxford University Press, Oxford, New York)
3. BASAR, E. (1988): 'EEG-dynamics and evoked potentials in sensory and cognitive processing by the brain', in BASAR, E. (Ed.): 'Dynamics of sensory and cognitive processing by the brain' (Springer, Berlin, Heidelberg, New York)
4. BASAR, E. (1990): 'Chaos in brain function' (Springer, Berlin, Heidelberg, New York)
5. BASAR, E., and SCHURMANN, M. (1996): 'Alpha rhythms in the brain: functional correlates', News Physiol. Sci., 11, pp. 90-96
6. BASAR, E., SCHURMANN. M., BASAR-EROGLU, C., and KARAKAS, S. (1997): 'Alpha oscillations in brain functioning: an integrative theory', Int. J. Psychophysiol., 26, pp. 5-29
7. BERGER, H. (1929): 'Uber das Electrenkephalogramm des Menschen', Archiv Psychiatrie Nervenkrankheiten, 87, pp. 527-570
8. DICK, D. E., and VAUGHN, A. O. (1970): 'Mathematical description and computer detection of alpha wave', Math. Biosci., 7, pp. 81-95
9. KTONAS, P. Y., and PAPP, N. (1980): 'Instantaneous envelope and phase extraction from real signals: theory, implementation, and an application to EEG analysis', Signal Process., 2, pp. 373-385
10. LOPES DA SILVA, F. H., PIJN, J. P., VELIS, D., and NIJSSEN, P. C. G. (1997): 'Alpha rhythms: noise, dynamics and models', Int. J. Psychophysiol., 26, pp. 237-249
11. LOPES DA SILVA, F. H., and STORM VAN LEEUWEN, W. (1977): 'The cortical source of alpha rhythm', Neurosci. Lett., 6, pp. 237-241
12. LUCAS, E. A., and HARPER, R. M. (1976): 'Periodicities in the rate of on-demand electrical stimulation of the mesencephalic reticular formation to maintain wakefulness', Exp. Neuro., 51, pp. 444-456
13. NAITOH, P., NUTE, C., HORD, D., and JOHNSON, L. C. (1972): 'Comparison of complex demodulation with spectrum in detailed analysis of the alpha rhythm'. Proc. Western EEG Soc. Ann. Conf., Portland, Oregon
14. PASQUALI, E. (1969): 'Alpha envelope detection and distortion. A polyphase rectifier circuit', EIectroenceph. Clin. Neurophysiol., 26, pp. 106-9
15. SARKADY, H. H., CLARK, R. R., and WILLIAMS, R. (1976): 'Computer analysis techniques for phonocardiogram diagnosis', Comput. Biomed. Res., 9, pp. 349-363
16. WALTER, D. O. (1968): 'The method of complex demodulation', Electroenceph. Clin. Neurophysiol., Suppl. 27, pp. 53-57