Apr 12 2016

Brain imaging during LSD use

Increased visual cortex cerebral blood flow (CBF), decreased visual cortex alphapower, and a greatly expanded primary visual cortex (V1) functional connectivity profile correlated strongly with ratings of visual hallucinations, implying that intrinsic brain activity exerts greater influence on visual processing in the psychedelic state, thereby defining its hallucinatory quality.

Neural correlates of the LSD experience revealed by multimodal neuroimaging