Reproducibility via neural fields of visual illusions induced by localized stimuli
CoRR(2024)
摘要
This paper investigates the replication of experiments by Billock and Tsou
[PNAS, 2007] using the controllability of neural fields of Amari-type modelling
the cortical activity in the primary visual cortex (V1), focusing on a regular
funnel pattern localised in the fovea or the peripheral visual field. The aim
is to understand and model the visual phenomena observed in these experiments,
emphasising their nonlinear nature. The study involves designing sensory inputs
simulating the visual stimuli from Billock and Tsou's experiments. The
after-images induced by these inputs are then theoretically and numerically
studied to determine their capacity to replicate the experimentally observed
visual effects. A key aspect of this research is investigating the effects
induced by the nonlinear nature of neural responses. In particular, by
highlighting the importance of both excitatory and inhibitory neurons in the
emergence of certain visual phenomena, this study suggests that an interplay of
both types of neuronal activities plays an essential role in visual processes,
challenging the assumption that the latter is mainly driven by excitatory
activities alone.
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