To investigate the presence of sub-clinical cognitive dysfunction in non-demented patients with amyotrophic lateral sclerosis (ALS) using auditory event-related potentials (ERPs).
Department of Neurology and Neurorehabilitation, San Raffaele Turro, San Raffaele Scientific Institute, Via Stamira d'Ancona 20, 20127 Milan, Italy. raggi.alberto@hsr.it
