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Scale laws
[Lois d'échelle]

Author

Listed:
  • Bianca Trovó

    (UNICOG-U992 - Neuroimagerie cognitive - Psychologie cognitive expérimentale - NEUROSPIN - Service NEUROSPIN - Université Paris-Saclay - JOLIOT - Institut des Sciences du Vivant Frédéric JOLIOT - CEA - Commissariat à l'énergie atomique et aux énergies alternatives - INSERM - Institut National de la Santé et de la Recherche Médicale - Université Paris-Saclay, UFR 927 - Sorbonne Université - UFR Sciences de la vie - SU - Sorbonne Université)

Abstract

Scale free dynamics and scale invariance are universal characteristics of complex systems in nature. 1/f or long-range temporal correlations or pink noise is also a self-generated/correlated brain noise that coexists with periodic brain oscillations in a non predominant temporal fashion. For a long time this kind of noise has been ignored in experimental manipulations or analyses because thought to be the expression of instrumental noise. Nowadays, instead, recent evidence speaks in favour of the functional significance of the 1/f and its spatiotemporal organisation at different levels. However, further investigation is needed in order to unveil the relationship between each specific 1/f noise (across individuals, behavioural tasks, across different natural phenomena…). Outline of the lecture: 1. Power-law distributions in nature 2. Types of noise 3. 1/f as a signature of complexity 4. Debate between brain oscillations and noise 5. New perspectives on 1/f: functional significance and temporal organisation

Suggested Citation

  • Bianca Trovó, 2018. "Scale laws [Lois d'échelle]," Post-Print cea-02300814, HAL.
    • Handle: RePEc:hal:journl:cea-02300814
    DOI: 10.5281/zenodo.3827519
    Note: View the original document on HAL open archive server: https://cea.hal.science/cea-02300814
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