Loss of Information Associated with the Perceptomotor Cognitive Domain: Praxis

Abstract

We have proposed a random walk model to model perceptomotor cognitive domain damage in patients with neurocognitive disorders (NDs). The random walk model with truncated Lorentz memory profile. We have reported that memory damage has an impact on random walkers' praxis and, consequently, on the global diffusive process, fractal dimension and information loss, and it is the major impact on information loss. We have found two diffusive regimes: the ordinary and the superdiffusive. We have observed two superdiffusion regions separated by a region with ordinary diffusion regime: one in the anti-persistence region and one in the persistence region. These regions are characterized by diffusion level curves, invariant curves of scale variations in the Lorentz distribution. In the anti-persistence region, we found a greater variation in entropy, for example, greater loss of praxis-related information than in the persistence region. Therefore, when memory impairment is accompanied by observation of anti-persistent behavior, there are greater losses of information related to the perceptomotor domain of random walkers.