RT Book, Section A1 Shneider, Neil A. A1 Hirano, Michio A2 Brust, John C.M. SR Print(0) ID 1159971054 T1 Motor Neuron Diseases T2 CURRENT Diagnosis & Treatment: Neurology, 3e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259835315 LK neurology.mhmedical.com/content.aspx?aid=1159971054 RD 2024/04/19 AB ESSENTIALS OF DIAGNOSISMuscle weakness and atrophyAbsence of overt cognitive and sensory changesAltered tendon reflexes—hyperactive if upper motor neurons (UMNs) are affected and either hypoactive or absent if lower motor neurons (LMNs) are involvedBabinski sign (if UMN is involved)