http://www.bibsonomy.org/burst/user/statphys23/amnesia+walkBibSonomy BuRST Feed for /user/statphys23/amnesia+walk2008-10-08T13:04:51+02:00http://www.bibsonomy.org/bibtex/298555730650b42a0727487b4bb178382/statphys23statphys232007-06-20T10:16:09+02:00non-markovian walk statphys23 amnesia random topic-10 alzheimer <span style="color:#555555;">J.C. <a href="http://www.bibsonomy.org/author/Cressoni">Cressoni</a> und G.M. <a href="http://www.bibsonomy.org/author/Viswanathan">Viswanathan</a> und M.A.A. <a href="http://www.bibsonomy.org/author/Da Silva">Da Silva</a> und A.S. <a href="http://www.bibsonomy.org/author/Ferreira">Ferreira</a> </span><em>Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, </em><em>Genova, Italy, </em><em>9-13 July2007. </em>Wed Jun 20 10:16:09 CEST 2007Genova, ItalyAbstract Book of the XXIII IUPAP International Conference on Statistical Physics9-13 JulyPersistence Induced by Anterograde Amnesia in Random Walkers2007non-markovian walk statphys23 amnesia random topic-10 alzheimer Non-Markovian random walkers that recall only a fraction $f$ of the total time $t$ are studied. It is shown that otherwise nonpersistent random walkers switch to persistent behavior when inflicted with significant memory loss when only the distant past is remembered. Such memory losses induce the probability density function of the walker's position to undergo a transition from Gaussian to non-Gaussian. These findings of persistence are interpreted in terms of a breakdown of self-regulation mechanisms and their possible relevance to some of the burdensome behavioral and psychological symptoms of Alzheimer's disease and other dementias are also discussed. Part of this work has recently been published in Physical Review Letters (J. C. Cressoni, Marco Antonio Alves da Silva, and G. M. Viswanathan, PRL 98, 070603, (2007)).