Abstract
Simulation results of bistable perception due to ambiguous visual stimuli are presented which are obtained with a nonlinear dynamics model using delayed perception–attention–memory coupling. Percept reversals are induced by attention fatigue with an attention bias which balances the relative percept duration. Periodic stimulus simulations as a function of stimulus off-time yields the reversal rate variation in surprisingly good quantitative agreement with classical experimental results reported in the literature [1] when selecting a fatigue time constant of 1 – 2 s. Coupling of the bias to the perception state introduces memory effects which are quantified through the Hurst parameter H, exhibiting significant long range correlations (H > 0.5) in agreement with recent experimental results [2]. Percept transition times of 150 – 200 ms and mean percept dwell times of 3 – 5 s as reported in the literature, are correctly predicted if a feedback delay of 40 ms is assumed as mentioned in the literature (e.g. [21]).
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Fürstenau, N. (2009). Computational Nonlinear Dynamics Model of Percept Switching with Ambiguous Stimuli. In: Duffy, V.G. (eds) Digital Human Modeling. ICDHM 2009. Lecture Notes in Computer Science, vol 5620. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02809-0_25
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