Article Correctness Is Author's Responsibility: Scientists Seek Insight Into Parkinson’s, Addiction by Tracking Gene Expression in the Brain January 4, 2021 Author: Neuroscience News Category: addictionThe article below may contain offensive and/or incorrect content. New studies are set to explore how gene expression alters the brain's response to drug abuse, and to screen for genes that could help brain cells withstand Parkinson's disease.