About the author The information presented here is based on clinical examples as well as modeled patterns. Text and accompanying absorbance sketch is authored by Navid Shahnaz, PhD, Aud, Associate Pr…
What is the supine roll test? The supine roll test is a diagnostic maneuver used to identify horizontal canal benign paroxysmal positional vertigo (HC-BPPV). During the supine roll test, the patient…
The Affinity Suite has pre-defined protocols. Most of these protocols can easily be copied, modified or created from new. These modifications can be either permanent or temporary. Working with protoc…
The Affinity 2.0 and Callisto™ software suites all have pre-defined protocols. Most of these protocols can easily be copied, modified or created from new. These modifications can be either permanent…
What is the auditory brainstem response (ABR)? The auditory brainstem response (ABR) is an evoked potential that originates at the auditory nerve (Cranial Nerve VIII). This test is used to assess the…
What is the short increment sensitivity index (SISI) test? The short increment sensitivity index (SISI) test measures the ability to recognise 1dB increases in intensity during a series of bursts of…
What is the short increment sensitivity index (SISI) test? The short increment sensitivity index (SISI) test measures the ability to recognise 1dB increases in intensity during a series of bursts of…
What is the short increment sensitivity index (SISI) test? The short increment sensitivity index (SISI) test measures the ability to recognise 1dB increases in intensity during a series of bursts of…
What is the short increment sensitivity index (SISI) test? SISI is designed to test the ability to recognise 1dB increases in intensity during a series of bursts of pure tones presented 20dB above th…
It’s difficult to answer the question about how close you can get to threshold using eABR. eABR testing allows us to record a threshold on the equipment, and this is then used to set the T level on t…
It is simply a band of noise that is focused is a very narrow band of frequencies, with steep filter slopes, to produce a noise stimulus suitable for threshold estimation. For example, this is a spec…
The answer here depends on the stimulus and recording parameters, and guidelines for these may vary e.g. between different regions. For this reason it is often recommended that vestibular clinics gat…
