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Analysis of signal fluctuations of Cortical Spreading Depression: Preliminary findings

Author

Listed:
  • do Nascimento, Rosângela S.
  • de Araújo, Luiz Henrique G.D.
  • Moraes, Renato B.
  • Barbosa, Catão T.F.
  • Guedes, Rubem C.A.
  • Nogueira, Romildo A.
  • Stošić, Tatijana

Abstract

In this work, we apply Detrended Fluctuation Analysis (DFA) to study the dynamics of electrical cortical activity in rats during the phenomenon of Cortical Spreading Depression (CSD), as well as the periods before and after this phenomenon. The characteristic of CSD is reduced electrical activity that occurs and spreads in the cerebral cortex after the application of electrical, chemical or mechanical stimulus. Our results show that the electrocorticogram signal shows long range temporal correlations and scaling behavior, except during the pre-CSD burst phase (significant increase of amplitude provoked by stimulus).

Suggested Citation

  • do Nascimento, Rosângela S. & de Araújo, Luiz Henrique G.D. & Moraes, Renato B. & Barbosa, Catão T.F. & Guedes, Rubem C.A. & Nogueira, Romildo A. & Stošić, Tatijana, 2010. "Analysis of signal fluctuations of Cortical Spreading Depression: Preliminary findings," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 389(9), pages 1869-1873.
    • Handle: RePEc:eee:phsmap:v:389:y:2010:i:9:p:1869-1873
    DOI: 10.1016/j.physa.2010.01.010
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    Cited by:

    1. Stosic, Tatijana & Telesca, Luciano & Lemos da Costa, Simara Lúcia & Stosic, Borko, 2016. "Identifying drought-induced correlations in the satellite time series of hot pixels recorded in the Brazilian Amazon by means of the detrended fluctuation analysis," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 444(C), pages 660-666.
    2. dos Anjos, Priscilla Sales & da Silva, Antonio Samuel Alves & Stošić, Borko & Stošić, Tatijana, 2015. "Long-term correlations and cross-correlations in wind speed and solar radiation temporal series from Fernando de Noronha Island, Brazil," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 424(C), pages 90-96.

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