Search PubMed⌕ Search

Biomedical subjects

F S Hickson

Publications and source records attributed to F S Hickson.

6 recordsLinked to original sources
PubMed1983

Illuminance and recording of eye movements by electro-oculography.

The fluctuation of the d.c. potential of the eye following changes in the ambient level of illuminance is well recognised in the field of ophthalmology. However, the influence of this factor in the recording of eye movements in the oto-neurological clinic has been little investigated. In this study the variation in the d.c. potential was measured for fixed periods of time after subjects entered a clinic environment of known illuminance and after entering the dark. In the short term (3-4 min), the variation in d.c. potential was less than 20% in the 22 subjects tested. Suggestions are made to minimise these fluctuations in the recording of nystagmus and other eye movements.

Adaptation, Ocular↗
PubMed1981

Sound localization. Part II: a clinical procedure.

Difficulty in localizing sound has been shown to be associated with severe unilateral hearing impairment, middle-ear conditions and lesions of the cerebello-pontine angle. This was in contrast to the performance of subjects with cochlear lesions and certain brain conditions who had mainly normal ability to localize sound. The investigation appeared to indicate that a sound localization test in the horizontal plane using low frequency stimuli may be a useful addition to the test battery employed in the differential diagnosis of cochlear and retrocochlear lesions involving the cerebello-pontine angle.

Adolescent↗