Effects of coupling strength and network topology on signal detection in small-world neuronal networks
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We study the effects of different coupling strengths and network topologies on signal detection in small-world neuronal networks. Research has previously revealed that the ability of detecting subthreshold signals could be significantly enhanced by appropriately fine-tuning the noise intensity. Here we show that the coupling strength and the structure of the underlying network can also lead toward enhanced signal detection. In particular, we show that there are two levels of the coupling strength at which the subthreshold signal can be detected at an appropriate noise intensity and network structure. We also show that the network structure has little impact on signal detection if the coupling is weak. On the other hand, for intermediate coupling strengths, we show that the shorter the average path length, the better the signal detection. Finally, if the coupling is strong, we show that there exists an intermediate average path length at which signal detection becomes optimal.
KeywordsNeuronal network Small-world network Multiple stochastic resonance Signal detection
Xiaojuan Sun thanks for the supports by the National Natural Science Foundation of China (Grant Nos. 11472061, 11772069) and the Fundamental Research Funds for the Central University (No. 2018XKJC02). Matjaž Perc acknowledges support from the Slovenian Research Agency (Grant Nos. P5-0027 and J1-7009).
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Conflict of interest
We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.
- 17.Chen, Y.L., Yu, L.C., Chen, Y.: Reliability of weak signals detection in neurons with noise. Sci. China Technol. Sci. 59, 1–7 (2016)Google Scholar
- 22.Azevedo, F.A., Carvalho, L.R., Grinberg, L.T., Farfel, J.M., Ferretti, R.E., Leite, R.E., Jacob, F.W., Lent, R., Herculano-Houzel, S.: Equal numbers of neuronal and nonneuronal cells make the human brain an isometrically scaled-up primate brain. J. Comp. Neurol. 513, 532–541 (2009)CrossRefGoogle Scholar
- 41.Cao, Q., Shu, N., An, L., Wang, P., Sun, L., Xia, M.R., Wang, J.H., Gong, G.L., Zang, Y.F., Wang, Y.F.: Probabilistic diffusion tractography and graph theory analysis reveal abnormal white matter structural connectivity networks in drug-naive boys with attention deficit/hyperactivity disorder. J. Neurosci. 33, 10676–10687 (2013)CrossRefGoogle Scholar