Deviation from Criticality in Functional Biological Networks

  • Tom Lorimer
  • Florian Gomez
  • Ruedi Stoop
Conference paper

DOI: 10.1007/978-3-319-08672-9_36

Part of the Communications in Computer and Information Science book series (CCIS, volume 438)
Cite this paper as:
Lorimer T., Gomez F., Stoop R. (2014) Deviation from Criticality in Functional Biological Networks. In: Mladenov V.M., Ivanov P.C. (eds) Nonlinear Dynamics of Electronic Systems. NDES 2014. Communications in Computer and Information Science, vol 438. Springer, Cham

Abstract

Claims based on power laws that cognition occurs in a critical state often rely on the assumption that the network observables studied are observables of cognition, however this relationship to function is not clear. Our novel approach to investigate this problem is instead to consider functional output during (goal-directed) pre-copulatory courtship of Drosophila melanogaster, which we study as a complex network. This courtship body language, expressed through a symbolic dynamics, has previously been shown to be situation specific and grammatically complex; here, we show that the networks underlying it deviate from a scale-free structure when recursive grammars are included. This structural deviation is modelled by a simple network growth algorithm which adds internal edge saturation to the preferential attachment paradigm. From this, we suggest that a critical state may not be compatible with higher level cognition.

Keywords

Criticality cognition complex networks network growth 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Tom Lorimer
    • 1
  • Florian Gomez
    • 1
  • Ruedi Stoop
    • 1
  1. 1.Institute of NeuroinformaticsUniversity of Zurich and ETH ZurichZurichSwitzerland

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