Abstract
The present paper investigates the variation of the strength of illusion as a function of different geometrical parameters of the Müller-Lyer stimulus. The illusory effects are quantified through psychometric experiments. Experimental data are fitted with model constructed on neurophysiological evidence and information geometry. The goodness of fit between the experimental and simulated data are computed using the p value of \(\chi^{2}\) measure and found > 99% on an average. The foundation of the model is the population coding of Müller-Lyer stimulus through filtering by difference of Gaussian filter representing the center surround receptive field with adaptive scale factors. It is further hypothesized that in the visual cortex (V1) the population code of the neurons images the stimulus on a visual space which is essentially a statistical parametric space with constant negative curvature (hyperbolic space). Fisher-Rao information distance function appears to be the natural measure of proper distance in this space. Application of information geometric model in real-life problem is also discussed.
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Mazumdar, D., Mitra, S., Mandal, M., Ghosh, K., Bhaumik, K. (2023). Modeling Müller-Lyer Illusion Using Information Geometry. In: Jacob, I.J., Kolandapalayam Shanmugam, S., Izonin, I. (eds) Data Intelligence and Cognitive Informatics. Algorithms for Intelligent Systems. Springer, Singapore. https://doi.org/10.1007/978-981-19-6004-8_1
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