PD on Only One Side of the Brain (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption This is a cervical slice showing the healthy left-hand side of the brain and the damaged, Parkinson's disease side with lesions provoked by the LKKR2 gene mutation. Credit EPFL Usage Restrictions With mention 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.