Waves of information travel within the claustrum. ~ English molecular biologist Francis Crick & American biologist Christof Koch
The claustrum is a thin, irregular sheet of gray matter layered through white matter near the insula: by volume 0.0025% of the brain. All mammals have a claustrum.
The claustrum receives input from almost all regions of the cortex and projects back to almost all regions of the cortex. The claustrum is the communication conduit of mental integration from the white matter that surrounds it.