17 articles
Articulation index
The articulation index is a psychoacoustic method that estimates speech intelligibility by weighting signal-to-noise ratios across frequency bands, producing a value from 0 to 1.
Audiologic Recruitment Detection
Audiologic recruitment detection: behavioral and objective tests (ABLB/Fowler, SISI, Metz reflex, category loudness scaling) measuring abnormally rapid loudness growth in cochlear hearing loss.
Auditory Evoked Potentials
Auditory evoked potentials (AEPs) are scalp-recorded EEG responses to sound, spanning the ABR (under 10 ms), middle latency responses, cortical CAEPs, and sustained ASSR/FFR; used for objective hearing threshold estimation, screening, and hearing aid and cochlear implant assessment.
Diabetic eye screening
Diabetic eye screening is an NHS program using dilated retinal photography to detect diabetic retinopathy and maculopathy in people with diabetes aged 12 and over.
Dichotic Listening Tests
Dichotic listening tests present two different sounds simultaneously, one per ear, to assess hemispheric speech specialization; Kimura's 1961 right-ear advantage, reliability issues, and clinical uses distinguish them.
Electrocochleography
Electrocochleography (ECochG) is an electrophysiological test recording electrical potentials from the cochlea and auditory nerve in response to sound, used mainly to diagnose Meniere disease.
Non-invasive glucose monitoring
Non-invasive glucose monitoring (NIGM) measures blood glucose through the skin or in body fluids without drawing blood, for diabetes management and screening; no fully non-invasive device holds FDA clearance.
Otological Diagnostic Techniques
Otological diagnostic techniques (MeSH D003939) are methods for diagnosing ear disease and hearing loss: otoscopy, pure-tone and speech audiometry, tuning fork tests, tympanometry, acoustic reflex, otoacoustic emissions, auditory brainstem response, vestibular tests, imaging, and AI-assisted otoscopy.
Photic stimulation
Photic stimulation, or intermittent photic stimulation (IPS), is an EEG activation test in which strobe flashes provoke the photoparoxysmal response, used to diagnose photosensitive epilepsy.
Pure tone audiometry
Pure tone audiometry is a behavioral hearing test that measures the softest pure tones a person detects at standard frequencies, plotted as an audiogram to determine the type, degree, and configuration of hearing loss.
R-peak detection
R-peak detection is the signal-processing task of locating the R peak in an electrocardiogram recording so heart rate, rhythm, and beat-to-beat timing can be measured, classically by the 1985 Pan-Tompkins algorithm.
Speech Discrimination Tests
Speech discrimination tests, now usually called word recognition testing, measure the percentage of standardized monosyllabic words a listener repeats correctly at suprathreshold levels; rooted in Egan's 1948 phonetically balanced lists and Hahlbrock's German test, they assess speech understanding in quiet and in noise.
Speech Reception Threshold Test
Speech Reception Threshold Test (SRT, spondee threshold): audiology test finding the lowest hearing level at which a listener repeats 50% of two-syllable spondaic words, used to cross-check the pure-tone audiogram.
Transient evoked otoacoustic emissions
Transient evoked otoacoustic emissions (TEOAEs) are faint cochlear echoes recorded in the ear canal after a click, first measured by David Kemp in 1978 and used widely in newborn hearing screening.
Tympanometry
Tympanometry is a clinical test measuring middle ear admittance while ear canal pressure varies, producing a tympanogram used to detect fluid, eustachian tube dysfunction, and eardrum perforation.
Ventilator weaning
Ventilator weaning is the clinical process of gradually withdrawing mechanical ventilation from an ICU patient to test whether the respiratory muscles can sustain breathing unaided, using spontaneous breathing trials.
Visual reinforcement audiometry
Visual reinforcement audiometry is a behavioral hearing test in which infants are conditioned to turn toward sound for a visual reward, used from about 6 to 24 months.