Independent component analysis of temporal sequences forms place cells

It has been suggested that sensory information processing makes use of a fa ctorial code. It has been shown that the major components of the hippocampa l-entorhinal loop can be derived by conjecturing that the task of this loop is forming and encoding independent components (ICs), one type of factoria l codes. However, continuously changing environment poses additional requir ements on the coding that can be (partially) satisfied by extending the ana lysis to the temporal domain and performing IC analysis on concatenated inp uts of time slices. We use computer simulations to decide whether IC analys is on temporal sequences can produce place fields in labyrinths or not. (C) 2001 Elsevier Science B.V. All rights reserved.