• Interpeak intervals of the auditory brainstem evoked electric response (ABR) were measured in 13 patients showing a characteristic slow rhythmic tremor and a more or less marked chronic cerebellar ataxia. Eleven of these patients were advanced alcoholics; two were less severe alcoholics. The tremor appeared primarily in the legs, and displayed distinctive features when examined in appropriate postures. Ten of the patients displayed a significant increase of the I-V interval of the ABR. The occurrence of the slow tremor with abnormal electric brainstem responses may provide objective evidence of lesions affecting extracerebellar regions of the CNS.
Rosenhamer HJ, Silfverskiöld BP. Slow Tremor and Delayed Brainstem Auditory Evoked Responses in Alcoholics. Arch Neurol. 1980;37(5):293–296. doi:10.1001/archneur.1980.00500540071010