Two MIT neuroscientists have been awarded grants from the G. Harold and Leila Y. Mathers Foundation to screen for genes that could help brain cells withstand Parkinson’s disease and to map how gene expression changes in the brain in response to drugs of abuse. Myriam Heiman, an associate professor in the Department of Brain and Cognitive Sciences and a core member of The Picower Institute for Learning and Memory and the Broad Institute of MIT and Harvard; and Alan Jasanoff, a professor in biological engineering, brain and cognitive sciences, nuclear…