Network configurations of pain: an efficiency characterization of information transmission

Romina Luise, Roman Baravalle, Osvaldo A. Rosso and Fernando Montani ()
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Romina Luise: Universidad Nacional de La Plata, CONICET CCT-La Plata
Roman Baravalle: Universidad Nacional de La Plata, CONICET CCT-La Plata
Osvaldo A. Rosso: Universidade Federal de Alagoas (UFAL)
Fernando Montani: Universidad Nacional de La Plata, CONICET CCT-La Plata

The European Physical Journal B: Condensed Matter and Complex Systems, 2021, vol. 94, issue 1, 1-13

Abstract: Abstract Recent studies have shown that gamma-band oscillations are directly related to pain intensity. Pain can be exacerbated or diminished via deactivation or activation of inhibitory interneurons in the dorsal horn. We consider a biologically plausible network model with different proportion of inhibitory neurons to emulate gamma elicited activity during pain processes. We perform an analysis using graph theory to gain further insight in the functional state of the circuitry underlying nociceptive process, considering all the possible gamma elicited configurations of pain when changing the number of inhibitory neurons. The probability distribution of the signal associated with each node or neuron is estimated through the Bandt and Pompe approach. We evaluate the Jensen–Shannon distance between all the possible pairs of nodes/neurons, characterizing the different network configurations by calculating the closeness centrality. Thus, by building the graph properties through the node strength distributions and using an information theoretical approach, we characterize the dynamics of the network configurations of pain. This allows us to identify the nonlinear dynamical structure underlying the nociceptive process. Importantly, our findings show that a network configuration with a $$20\%$$ 20 % of inhibitory neurons boosts information transmission of the complex network circuitry associated with the pain processing. Graphic abstract

Date: 2021
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DOI: 10.1140/epjb/s10051-021-00046-6

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