Dissociable Neural Information Dynamics of Perceptual Integration and Differentiation during Bistable Perception.
Cerebral cortex (New York, N.Y. : 1991) June 30, 2020 Andrés Canales-Johnson, Alexander J Billig, Francisco A Olivares et al. 51 citations
During auditory bistable perception, a sequence of tones can be heard either as a single stream (integrated percept) or as two parallel streams (differentiated percept). Neural recordings showed that when perceptual alternations arose spontaneously, the integrated percept corresponded to increased neural information integration and decreased neural information differentiation across frontoparietal regions, while the differentiated percept showed the opposite pattern. When perception was driven by an external change in the sound stream, neural oscillatory power distinguished between percepts but information measures did not. The findings demonstrate that integration and differentiation of conscious perception map onto theoretically motivated neural information signatures, suggesting a direct link between phenomenology and neurophysiology.