This is an objective test to measure the outer hair cell function of the cochlea (the auditory part of the inner ear). Stimulation of the normal cochlea results in the transmission of an electrical impulse along the auditory nerve through the brain to the auditory cortex where it is perceived as sound. At the same time some sound (cochlear echo) is reflected from the cochlea to the external canal and can be measured by a sophisticated recorder.
You are not required to do anything for this test other than sit very still. The audiologist will hold a soft rubber probe at the entrance of your ear canal and you will hear some clicking sounds but you are not required to respond to them.
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Dr Gerald Brookes is regularly consulted by the media for his expertise. He has been interviewed by the Daily Mail, featured on Channel 4's Embarassing Bodies, looked after The X-Factor contestants and recently, appeared on BBC Radio 2 with Chris Evans.
Media: Channel 4
Adele was experiencing dizziness and balance problems so severe that she could barely function. In desperation, after consulting her GP to no avail, she got in touch with Channel 4’s Embarrassing Bodies team. The show then contacted Dr Gerald Brookes, who was able to diagnose her rare condition as Basilar Migraine.
Catherine Eade was having dizzy spells and balance problems. When inexplicably she started suffering memory loss too, she consulted Dr Gerald Brookes at The Harley Street ENT Clinic who correctly diagnosed her problem as benign paroxysmal positional vertigo (BPPV).
The Harley Street ENT Clinic looked after The X-Factor TV show contestants for many seasons. At the end of the 2010 season, Dr Gerald Brookes was interviewed by Nicky Broyd of Boots WebMD on the perils of high pressure performing.