The brain near the edge
arXiv:q-bio/0610041 · doi:10.1063/1.2709580
Abstract
When viewed at a certain coarse grain, the brain seems a relatively small dynamical system composed by a few dozen interacting areas, performing a number of stereotypical behaviors. It is known that, even relatively small dynamical systems can reliably generate robust and flexible behavior if they are possed near a second order phase transition, because of the abundance of metastable states at the critical point. The approach pursued here assumes that some of the most fundamental properties of the functioning brain are possible because it is spontaneously possed at the border of such instability. In this notes we review the motivation, the arguments and recent results as well as the implications of this view of the functioning brain.
Contribution to the 9th Granada Seminar in Computational and Statistical Physics, "Computational and Mathematical Modelling of Cooperative Behavior in Neural Systems". University of Granada, Granada (Spain), 2006