Brainstem reflexes and brainstem auditory evoked responses in Huntington's chorea

E Bollen, R J Arts, R A Roos, E A van der Velde, O J Buruma
1986 Journal of Neurology, Neurosurgery and Psychiatry  
Blink reflex, corneal reflex, jaw reflex, exteroceptive suppression in masseter muscles and brainstem auditory evoked potentials were measured in 20 patients with Huntington's chorea and 12 controls. A significantly increased latency of the second component of the homolateral and heterolateral blink reflex was found in the patient group as compared with the controls. The other investigations revealed no significant differences between patients and controls except for some facilitation of the
more » ... reflex in the patient group. Increase of second component latency of the blink reflex in the presence of normal corneal reflexes is suggestive of functional impulse conduction disturbance in the lower brainstem. It is discussed whether in Huntington's chorea this is to be
doi:10.1136/jnnp.49.3.313 pmid:2937885 pmcid:PMC1028732 fatcat:dekzn4u5jjbxllc6ccr57efk6y