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Computational Intelligence, Medicine and Biology pp 103–122Cite as

Towards Lateral Inhibition and Collective Perception in Unorganised Non-neural Systems

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Part of the book series: Studies in Computational Intelligence ((SCI,volume 600))

Abstract

Lateral Inhibition (LI) phenomena occur in a wide range of neural sensory modalities, but are most famously described in the visual system of humans and other animals. The general mechanism can be summarised as when a stimulated neuron is itself excited and also suppresses the activity of its local neighbours via inhibitory connections. The effect is to generate an increase in contrast between spatial environmental stimuli. Simple organisms, such as the single-celled slime mould Physarum polycephalum possess no neural tissue yet, despite this, are known to exhibit complex computational behaviour. Could simple organisms such as slime mould approximate LI without recourse to neural tissue? We describe a model whereby LI can emerge without explicit inhibitory wiring, using only bulk transport effects.We use a multi-agent model of slime mould to reproduce the characteristic edge contrast amplification effects of LI using excitation via attractant based stimuli. We also explore a counterpart behaviour, Lateral Activation (where stimulated regions are inhibited and lateral regions are excited), using simulated exposure to light irradiation. In both cases restoration of baseline activity occurs when the stimuli are removed. In addition to the enhancement of local edge contrast the long-term change in population density distribution corresponds to a collective response to the global brightness of 2D image stimuli, including the scalloped intensity profile of the Chevreul staircase and the perceived difference of two identically bright patches in the Simultaneous Brightness Contrast (SBC) effect. This simple model approximatesLI contrast enhancement phenomena and global brightness perception in collective unorganised systems without fixed neural architectures. This may encourage further research into unorganised analogues of neural processes in simple organisms and suggests novel mechanisms to generate collective perception of contrast and brightness in distributed computing and robotic devices.

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Authors and Affiliations

  1. Centre for Unconventional Computing, University of the West of England, Bristol, UK

    Jeff Dale Jones

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  1. Jeff Dale Jones
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Correspondence to Jeff Dale Jones .

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Editors and Affiliations

  1. Sci. & Knwlge & Eng., Zamosc, Poland & Kwldge.Eng. Inst.of Biomedcal Infomtcs, Univ. of Mgmt & Adm Univ. of Info.Tech.,, Rzeszow, Poland

    Krzysztof Pancerz

  2. Department of Informatics, University of Zilina, Zilina, Slovakia

    Elena Zaitseva

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Jones, J.D. (2015). Towards Lateral Inhibition and Collective Perception in Unorganised Non-neural Systems. In: Pancerz, K., Zaitseva, E. (eds) Computational Intelligence, Medicine and Biology. Studies in Computational Intelligence, vol 600. Springer, Cham. https://doi.org/10.1007/978-3-319-16844-9_6

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  • DOI: https://doi.org/10.1007/978-3-319-16844-9_6

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-16843-2

  • Online ISBN: 978-3-319-16844-9

  • eBook Packages: EngineeringEngineering (R0)

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