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Vestibular dysfunction in hereditary ataxia.

D V Philcox, S L Sellars, R Pamplett

Brain : a Journal of Neurology

|June 1, 1975

Summary

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A unique inherited ataxia presents with abnormal eye movements and normal hearing. These specific symptoms may help identify the condition early in young adults for genetic counseling.

Area of Science:

Neurology
Genetics
Ophthalmology

Background:

Describes a family with a rare, dominantly inherited ataxia.
Characterized by late-onset neurological symptoms.

Purpose of the Study:

To detail the clinical and genetic features of a unique ataxia.
To identify potential early diagnostic markers for presymptomatic individuals.

Main Methods:

Clinical examination of affected family members.
Assessment of neurological responses, including optokinetic nystagmus and oculo-vestibular reflexes.
Evaluation of auditory function.

Main Results:

Identified a unique autosomal dominant ataxia with late onset.

Related Experiment Videos

Observed defective optokinetic nystagmus and abnormal oculo-vestibular responses.

Confirmed normal cochlear function in affected individuals.

Conclusions:

The specific pattern of ocular and vestibular dysfunction, with preserved hearing, may serve as early indicators of this ataxia.
These findings can aid in identifying presymptomatic individuals, facilitating genetic counseling and management.