title: Subjective and electrophysiologic tests in brain-stem lesions.
abstract: A battery of subjective and electrophysiologic auditory and vestibular tests were administered to 22 patients with neurologically confirmed brain-stem lesions to investigate the interrelationships between the test results. Acoustic-reflex and simultaneous midplane binaural loudness-balance abnormalities were related to N2 and N3 abnormalities on the brain-stem evoked-response measures. Unilateral abnormalities in low-redundancy speech tests, prolonged auditory reaction times, and reduced loudness growth on the alternate binaural loudness-balance test were related to ipsilateral N4 abnormalities or contralateral N5 abnormalities on the brain-stem evoked-response measures.
mesh_terms: D000161:Acoustic Stimulation; D001254:Astrocytoma / Q000503:physiopathology; D001299:Audiometry; D001303:Auditory Cortex / Q000503:physiopathology; D001307:Auditory Perception; D001927:Brain Diseases / Q000503:physiopathology; D001932:Brain Neoplasms / Q000503:physiopathology; D001933:Brain Stem / Q000503:physiopathology*; D004594:Electrophysiology / Q000379:methods*; D005071:Evoked Potentials; D005910:Glioma / Q000503:physiopathology; D006801:Humans; D009103:Multiple Sclerosis / Q000503:physiopathology; D009442:Neurilemmoma / Q000503:physiopathology; D012021:Reflex, Abnormal / Q000503:physiopathology; D014724:Vestibular Function Tests