1) Evaluation and construction of diagnostic criteria for inclusion body myositis and 2) Topic of the month: Plenary sessions AAN Meeting April 2014. This podcast for the Neurology Journal begins and closes with Dr. Robert Gross, Editor-in-Chief, briefly discussing highlighted articles from the print issue of Neurology. In the second segment Dr. Ted Burns interviews Dr. Steven A. Greenberg about his paper on evaluation and construction of diagnostic criteria for inclusion body myositis. Dr. James Addington is reading our e-Pearl of the week about Rapid-Onset Dystonia Parkinsonism. In the next part of the podcast Dr. Alberto Espay continues his interview with Dr. Jon Stone including questions about his Contemporary Clinical Issues Lecture about functional (psychogenic) disorders in neurology from the audience at Interview Central and his responses. The participants had nothing to disclose except Drs. Burns, Greenberg, Addington, Espay and Stone.Dr. Burns serves as Podcast Editor for Neurology®; and has received research support for consulting activities with CSL Behring and Alexion Pharmaceuticals, Inc.Dr. Greenberg is a consultant for MedImmune, aTyr Pharma; receives publishing royalties from the publication of the book EMG Pearls; receives license fee payments from Composition and Methods for Diagnosing and Assessing Inflammatory Myopathies, MedImmune; receives revenue for patents for composition and methods for diagnosing and assessing inflammatory myopathies, detecting inclusion body myositis; receives research support from MedImmune, Novartis and the NIH; serves on the scientific advisory board for MedImmune; received funding for travel from Biogen Idec and Genzyme Corporation.Dr. Addington serves on the editorial team for the Neurology® Resident and Fellow Section. Dr. Espay serves as an Associate Editor of Movement Disorders, Frontiers in Movement Disorders and Journal of Clinical Movement Disorders; serves as an editorial board member of Parkinsonism and Related Disorders and The European Neurological Journal; receives royalties for publications of books from Lippincott, Williams & Wilkins and from Cambridge University Press; serves on the scientific advisory board for Solvay Pharmaceuticals, Inc. (now Abbvie), Chelsea Therapeutics, Teva Pharmaceutical Industries Ltd., Impax Pharmaceuticals, Merz, Pfizer Inc, Solstice Neurosciences, LLC, Eli Lilly and Company, US WorldMeds; is a consultant for Chelsea Therapeutics, Solvay Pharmaceuticals, Inc. (now Abbvie); serves on the speakers' bureaus of Novartis, UCB, Teva Pharmaceutical Industries Ltd., American Academy of Neurology, Movement Disorders Society; receives research support from CleveMed/Great Lakes Neurotechnologies, Michael J. Fox Foundation and the NIH.Dr. Stone received speaker honoraria from the Movement Disorders Society, British Medical Association, American Academy of Neurology Royal College of Psychiatrists, UCB Pharma, Novartis, Tribunals Judiciary (UK); receives research support from the National Research Strategy Career Fellow with NHS Scotland Research; receives publishing royalties from UptoDate 2014; runs a free self-help website for patients with functional disorders www.neurosymptoms.org; carries out regular expert witness work in relation to personal injury and medical negligence.