https://doi.org/10.1140/epjb/s10051-024-00794-1
Regular Article - Statistical and Nonlinear Physics
Neuronal avalanches in level model under the influence of noisy drive
1
Department of Physics, Aligarh Muslim University, 202002, Aligarh, Uttar Pradesh, India
2
Department of Physics, Institute of Science, Banaras Hindu University, 221005, Varanasi, Uttar Pradesh, India
Received:
10
June
2024
Accepted:
22
September
2024
Published online:
9
October
2024
We study a neural-level model (Das and Levina Phys Rev X 9:021062, 2019) that exhibits critical avalanches satisfying power-law distribution. The model recently explained a change in the scaling exponent from 3/2 to 5/4, accounting for a change in the drive condition from no input to moderate strength, along with a relaxed separation of time scale between drive and dissipation. We examine the effect of a class of noisy stimuli in the moderate input regime. Applying the scaling method, we compute scaling functions associated with the avalanche size distribution, revealing striking finite-size scaling. For a class of noisy drives, we find that the scaling exponent can take a value different from 5/4, with an explicit system size dependence.
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