Left Entorhinal Cortex (IMAGE) NIH/National Institute of Mental Health Caption Entorhinal cortex (red) was thinnest in youth with Alzheimer's-related ApoE4 gene variant. View of left entorhinal cortex from beneath the brain, with front of brain at top. Artist's rendering. Credit Philip Shaw, M.D., NIMH Child Psychiatry Branch Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.