Author(s)

V. Labatut & J. Pastor

Abstract

Modeling the cerebral activity with dynamic probabilistic networks V. Labatut & J. Pastor INSERM Unite' 455, France Abstract Understanding the clinical outcomes of brain lesions necessitates knowing the networks of cerebral structures that constitute the substratum of cognitive or sensorimotor functions. This is achieved by interpreting activation data obtained, during the performance of a task, through functional neuroimaging techniques. The difficulty is that no one-to-one correspondence between activated networks and functions can be found. Actually, neuroimaging methods aim at analyzing specifically the activation. They are used to localize spatially and temporally the activated areas, to detect the different areas participating in the same function, and to determine the role of anatomical links on the activation. Clearly, an interpretative method explaining how the activation of large-scale networks derives from the cerebral information processing mechanisms involved in the task performan

Keywords