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CVs |
David Popivanov
Position
Professor of physiology, Director of the Laboratory for Neuroscience
Research interests
Methods and algorithms for biosignal processing, Stochastic
dynamics, Chaotic dynamics, Fractals, Cognitive processes, Motor control,
Psychophysiology
Projects
· Connectivity in language rehabilitation in stroke" A specific research
in the 5th Frame Program of EC "Quality of life and management of living
resources" Contract N0: QLK6-CT-1999-02140.(2000-2003)
· Detection and identification of interactions (even nonlinear) of EEG with
other time-related events. Study and development of methods
and algorithms. " Financial support by
Bulg. Acad. Sci. and Acad. of Sci. of The Czech Republic (2000-2002)
· "Estimation of the dynamics of the brain electrtical activity during cognitive
processing of sentences", funded by National fund "Scientific
Research" Grant B-806 (1999-2002) and by BAS.
· "Double-blind, randomised three-way crossover study of a fixed
combination of Arlevertâ, Vomexâ and Placebo: Effect on the vigilance of 21
healthy subjects" Financial support by Hennig Arzneimittel (Germany),
1997-1998; (Head of the research of bulgarian side).
· Financial support by Bulg. Acad. Sci. and Acad. of Sci. of The Czech
Republic(1997-1999) (Principal Investigator for bulgarian side)
· "Selforganization of the voluntary movements, reflected in the brain
electricalactivity" Financial support by National Fund "Scientific
Researches" -(B-402, 1995-1997) ; Principal Investigator.
· "Common Dynamical properties of psychophysiological processes in
imaginary and real movements" Financial support by National Fund
"Scientific Researches" -(MM1303, 2003-2005)
; Principal Investigator.
Selected
publications
Popivanov, D., V. Stomonyakov, P. Dojnov (2004)
Multifractality measures of EEG: Diagnostic distinction in healthy subjects and
aphasics during cognitive tasks. In: Advances in Medical Diagnostic Techniques
and Procedures, M. Singh, S. Radhakrishnan (Eds), Anamaya Publishers, New
Delhi, pp.42-47.
Popivanov, D., A. Janyan, E.
Andonova and V. Stomonyakov (2004) Self-similarity and chaotic dynamics of
biosignals during movement imagery. In: Interdisciplinasry Applications of Fractal and
Chaos Theory, R. Dobr escu, C. Vasilescu (Eds), Editura Academiei
Romane,pp.211-222.
Popivanov, D., Janyan, A., Andonova, E., Stamenov, M.
(2003) Common dynamic properties of biosignals during cognition:
self-similarity and chaotic dynamics of both response times and EEG during
movement imagery. Nonlinear Dynamics, Psychol. and Life Sci., 7, 4, 315-328.
Popivanov, D., V. Stomonyakov, G. Nicolova, E.
Christova (2003) Concordance in EEG oscillations during motor imagery. Comtes
rendues de l'Academie bulgare des Sciences, 56,10,81-88.
Popivanov, D., A. Janyan, E.
Andonova and V. Stomonyakov (2003) Self-similarity and chaotic dynamics of
biosignals during movement imagery. In: First South-East European Symposium on
Interdisciplinasry Approaches in Fractal Analysis, May 7-10, 2003,,pp.152-157.
Jekova, I., Dushanova, J., D. Popivanov (2002) Method
for ventricular fibrillation
detection in the external electrocardiogram using nonlinear
prediction. Physiol. Meas., 23, pp. 337-345.
Popivanov,
D. (2002) Dynamics of brain electrical signals and cognitive processes NBU,
Sofia (in Bulgarian)
Popivanov, D. (2001) Cognitive aspects of human motor
behavior, In: Sensorimotor Control, R. Dengler, A. Kossev (eds),
NATO Series1: Life and Behavioral Sciences, Vol., 326, pp. 47-56, IOS Press.
Popivanov, D., Philipova, D., Georgieva, S. (2001)
Event-related potentials elicited after sentences inducing movement imagery.
In: Proceed. Of the IX International Symposium on Motor Control, Part I, A.
Kossev, D. Popivanov, (eds), Acta Physiol. & Pharmacol. Bulg., 26, pp.
111-114.
Popivanov, D., Likova, L., Sauleva, Z. (2001) EEG
frequency dynamics during movement imagery. Ibid., pp.
115-118.
Popivanov, D., Dushanova, J., Sauleva, Z. Nonlinear
EEG dynamics during imagined self-paced movements. Ibid.,
pp. 119-122.
Philipova, D., Popivanov, D., Georgieva, Tchukanova
(2001) Slow brain potentials associated with motor
preparation and stimulus anticipation. Ibid, pp. 107-110.
Stambolieva, K., Popivanov, D., Grigorova, V. (2001)
Nonlinear dynamics of human postural sway during upright stance, Ibid, Part II,
pp. 159-163.
Dushanova, J., Popivanov, D. (2001) Nonlinear
dynamics estimation of EEG signals accompanying self-paced goal-directed
movements. Nonlinear Dynamnics, Psychol. And Life Sci, Vol.
5, 4, pp.325-343.
Popivanov, D. (2000) How to detect successive dynamic
changes in EEG signals? In: Medcal diagnostic techniques and procedures , M.
Singh, R. Radhakrishnan, K.M. Patil, M.R.S. Reddy (Eds), Narosa Publ. House,
pp. 95-103.
Popivanov, D., Mineva, A., Dushanova, J. and
Krekule, I. (2000) Comparison of linear and nonlinear dynamic changes detected
in EEG signals. In: Analysis of biomedical signals and images (Proceed. of 15th
Biennial Intern. Eurasip Conference, Biosignal 2000, J.Jan, J. Kozumplik, I.
Provaznik, Z. Szabo (Eds), Brno, Vitium Press, pp. 118-120.
Popivanov, D. and Mineva, A. (1999) Testing procedures for
non-stationarity and non-linearity in physiological signals.
Math. Biosci. 157, (1-2),
303-320.
Popivanov, D. and Dushanova, J. (1999) Nonlinear EEG
dynamic changes and their probable relation to voluntary movements
organization. NeuroReport, 10, 7, 1397-1401.
Popivanov, D. Mineva, A. and Krekule, I. (1999) EEG patterns in
theta and gamma frequency range and their probable relation to human voluntary
movement organization. Neurosci. Lett. 267/1, 5-8.
Popivanov, D.
(1999) Nonlinear successive dynamic transients in
human EEG during cognitive tasks. Theory Biosci., 118,
pp. 231-245.
Popivanov, D., Mineva, A.
and Dushanova, J. (1998) Tracking of EEG signal dynamics during mental tasks.
IEEE Eng. in Med. and Biol., March/April, 17(2), 89-95.
Draganova,
R., Popivanov, D. (1999) Assessment of frequency dynamics in EEG using complex
demodulation. Physiol. Res. 48,157-165.
Popivanov, D., Mineva, A. and Dushanova, J. (1998)
Tracking of EEG signal dynamics during mental tasks.
IEEE Eng. in Med. and Biol., March/April, 17(2), 89-95.
Mineva, A., Krekule, I. and D. Popivanov.
Short-term transients in the time-frequency dynamics of
event-related EEG detected by autoregressive models. In: Signal analysis
and prediction, A. Prochazka, J. Uhlir and P. Sovka (eds).
EURASIP, ICT Press, Prague, 1997, pp. 415-418.
Mineva, A. and Popivanov, D. Method of singletrial
readiness potential identification, based on singular spectrum analysis.
J. of Neurosci. Methods, 68, 1996 ,
pp.91-99.
Dushanova, J, and Popivanov D. Nonlinear prediction as a
tool for tracking the dynamics of single-trial readiness potentials.
J. Neurosci. Meth. 70,1,1996
pp.51-63.
Popivanov,
D., Dushanova, J., Mineva, A., Krekule, I. Single-trial readiness potentials: stochastic
and chaotic dynamical behavior. In: Motor Control VII, Eds. D.G. Stuart,
G.N.Gantchev, V.S.Gurfinkel, M. Wiesendanger, Motor Control Press, Tucson, AZ,
1996, pp. 245-248.
Popivanov,
D., Dushanova, J. and Mineva, A. Chaotic dynamical approach for readiness
potential study.(ibid), 1996, pp. 249-250.
Popivanov D., Mineva, A., Dushanova, J. and Draganova, R.
Is the EEG negative shift the most valuable aspect of the readiness in human
voluntary movements. In: Motor Control Symposium VIII,
Eds. G.N. Gantchev, V.S.Gurfinkel, D. Stuart, M. Wiesendanger, S. Mori.,Academic Publishing House, Bulgaria, 1996, pp. 109-112.
Dushanova,
J. and Popivanov, D. Nonlinear characteristics of EEG signals
accompanying voluntary movement performance. In: Proceed. of
the 7th Nat. Conf. on Biomed. Physics and Engn. with Interenat. Particip.,
Sofia,1996, pp. 107-109.
Popivanov,
D., Dushanova, J., Mineva, A. and Krekule I. Detection of successive changes in
dynamics of EEG time series: linear and nonlinear approach. In: Proceed. of the 18th Annual Nat. Conf. IEEE Eng. in Med. and Biol.
Soc., 1996, Amsterdam (on CD media).
Dimitrov,
B., Gantchev, G.N. and Popivanov, D. Brain macropotentials associated with
distincs phases of voluntary sustained isometric contraction in man. Int. J.
Psychophysiol., 22, 1996, pp. 35-44.
Popivanov, D., Mineva, A. and Dushanova, J. Single-Trial
Readiness Potentials and Fatigue. In:
Fatigue: Neural and Muscular Mechenisms, Eds: S.C.Gandevia, R.M.Enoka,
A.J.McComas, D.G.Stuart, C.K.Thoma, Vol 384 of the Series "Advances in
Experimental Medicine and Biology", Plenum Press, 1995, pp. 295-304.
Popivanov, D. Time series analysis
of brain potentials preceding voluntary movements. Med.Biol.Eng.&Comput.,1992,30:9-14.
Mailing address:
Central and
East European Center
for Cognitive
Science
New Bulgarian
University
21 Montevideo
Blvd.
Sofia, 1618
BULGARIA
Phone: + 359 2 811 0401
Fax: + 359 2 811 0421
Email: dapo@iph.bio.bas.bg
Last
updated 24.08.2005 17:00 ,
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