Consciousness in a multilevel architecture: Evidence from the right side of the brain.
Consciousness and Cognition September 1, 2018 B. Velichkovsky, O. Krotkova, A. Kotov et al.
The brain's resting-state interactions show a general rightward and top-down bias in excitatory connections among structures from different evolutionary layers (archicortex, paleocortex, neocortex), based on fMRI data from 25 healthy subjects. The right hippocampus uniquely exerts bottom-up excitatory influence reaching the frontopolar cortex, while the right ventrolateral cortex interacts with most nodes across evolutionary subdivisions. These findings suggest multiple levels of cognitive-affective organization in the human brain with profound lateralization.