EEG and MEG Activity Accompanying Spontaneous Reversals of the Necker Cube

Synchronous oscillations between assemblies of cortical neurons have been proposed as a functional mechanism for linking or binding sensory information [1],[2]. Synchrony between groups of cells has been reported to occur at inter-electrode distances greater than one centimetre [3], [4]. Edelman’s theory of neuronal group selection (TNGS) proposes that complex synchronous or reentrant activity serves as the basis for processing complex information [5]. Reentry is a process described as temporally continuous parallel interactions between distributed maps along ordered anatomical pathways. Reentry is not feedback, but parallel signalling in the time domain between spatially distributed maps, more similar to a process of dynamically changing correlations between distributed systems. Based on the TNGS three experimental questions were posed: 1) Can distributed cortical patterns present during perceptual reversals of a Necker cube be classified differently using a neuralnetwork ? 2) Does correlated activity increase during perception of Necker cube reversals? 3) Can distributed systems operating synchronously be identified ?