Harvard-Oxford Cortical Structural Atlas now calls the 'Supplementary Motor Area' the 'Juxtapositional Lobule Cortex (formerly Supplementary Motor Cortex)'. I've looked for papers that explain the name change but haven't managed to locate any. All the papers I've found either continue to use SMA or give both ('JLC formerly SMC') without explanation. Where did this change originate? Is JLC the accepted term now?