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Lancet (London, England)
Topics: Audiometry; Cost-Benefit Analysis; Deafness; Humans; Infant
PubMed: 2878279
DOI: No ID Found -
Acta Oto-laryngologica 1978The reflexive eyeblink, elicited by a tactile stimulus, is inhibited if an auditory stimulus precedes the eliciting stimulus by 100 msec. With adult subjects the...
The reflexive eyeblink, elicited by a tactile stimulus, is inhibited if an auditory stimulus precedes the eliciting stimulus by 100 msec. With adult subjects the threshold for this effect was found to be sufficiently low to suggest that reflex inhibition may be useful in objective audiometry. A preliminary investigation with infants and children showed that the inhibitory process is present, though variable, in children as young as 6 weeks olds.
Topics: Acoustic Stimulation; Adolescent; Adult; Audiometry; Child; Child, Preschool; Humans; Infant; Physical Stimulation; Reflex
PubMed: 665206
DOI: 10.3109/00016487809121461 -
Revue D'electroencephalographie Et de... 1976
Topics: Audiometry; Automation; Electroencephalography
PubMed: 996308
DOI: 10.1016/s0370-4475(76)80084-6 -
Archives of Otolaryngology (Chicago,... Jul 1962
Topics: Audiometry; Audiometry, Pure-Tone; Humans
PubMed: 14491552
DOI: 10.1001/archotol.1962.00740050042007 -
The Laryngoscope Nov 1960
Topics: Audiometry; Audiometry, Speech; Humans; Language
PubMed: 13699132
DOI: 10.1288/00005537-196011000-00004 -
Fortschritte Der Medizin Apr 1999Tuning fork tests have accompanied us from the beginning of otology. Various methods of striking have been used during the century and the efforts to attain... (Comparative Study)
Comparative Study
Tuning fork tests have accompanied us from the beginning of otology. Various methods of striking have been used during the century and the efforts to attain standardisation appear to have been forgotten since audiology became available. But the use of tuning forks is very important. Some physical principles of the Weber- and Rinne-tuning fork test are described. Furthermore some hints in their interpretation are stressed. The necessary control of pure tone audiometry by tuning forks is pointed out. The essential need for tuning forks in daily clinical practice is emphasised by examples and the special advantages of tuning forks are detailed.
Topics: Audiometry; Hearing Disorders; Hearing Tests; Humans
PubMed: 10361362
DOI: No ID Found -
Acta Oto-laryngologica 1976A 500 Hz pure tone is presented binaurally with earphones. The tone is adjusted to give a midline impression at confortable loudness level. An electronic variable time...
A 500 Hz pure tone is presented binaurally with earphones. The tone is adjusted to give a midline impression at confortable loudness level. An electronic variable time delay line unit and a generator for randomizing the shift of the phase lag of the signal to the right or to the left ear, respectively, are used. By shortening the time delay the threshold of the recognition of the phase difference is reached. At every test sequence the tone is first presented in the center of the head without delay and then with delay. The patient runs the test by indicating in which ear the tone is heard. The phase difference is thus gradually reduced from 500 musec down to a threshold value of about 48 musec equal on right and left ears in normal-hearing subjects. The results of phase audiometry on subjects with normal hearing and with different types of hearing losses are in good agreement with the results of sound localization tests in free field. Phase audiometry seems to be of especial value in diagnosing retrocochlear lesions.
Topics: Acoustic Stimulation; Adolescent; Adult; Audiometry; Auditory Threshold; Hearing Disorders; Humans
PubMed: 1266615
DOI: 10.3109/00016487609119965 -
The Journal of the Acoustical Society... Feb 1989This study compared the reliability of a recently developed high-frequency audiometer (HFA) [Stevens et al., J. Acoust. Soc. Am. 81, 470-484 (1987)] with a less... (Comparative Study)
Comparative Study
This study compared the reliability of a recently developed high-frequency audiometer (HFA) [Stevens et al., J. Acoust. Soc. Am. 81, 470-484 (1987)] with a less complicated system that uses supraaural earphones (Koss system). The new approach permits calibration on an individual basis, making it possible to express thresholds at high frequencies in dB SPL. Data obtained from 50 normal-hearing subjects, ranging in age from 10-60 years, were used to evaluate the effects on reliability of threshold variance, earpiece/earphone fitting variance, and the variance associated with the HFA calibration process. Without earpiece/earphone replacement, the reliability of thresholds for the two systems is similar. With replacement, the HFA showed poorer reliability than the Koss system above 11 kHz, largely due to errors in estimating the calibration function. HFA reliability is greater for subjects with valid calibration functions over the entire frequency range. When average correction factors are applied to the Koss data in an effort to convert threshold estimates to dB SPL, individual transfer functions are not represented accurately. Thus the benefit of being able to express thresholds at high frequencies in dB SPL must be weighed against the additional source of variability introduced by the HFA calibration process.
Topics: Adolescent; Adult; Audiometry; Audiometry, Pure-Tone; Auditory Threshold; Child; Humans; Middle Aged; Reference Values
PubMed: 2926002
DOI: 10.1121/1.397559 -
Otolaryngologic Clinics of North America Jun 1993The audiologic manifestations of otosclerosis are as distinctive as they are varied. When pure stapedial otosclerosis is present, the most prominent audiologic signs are... (Review)
Review
The audiologic manifestations of otosclerosis are as distinctive as they are varied. When pure stapedial otosclerosis is present, the most prominent audiologic signs are elicited in response to the use of low-frequency stimuli, reflecting the effect that increased stiffness has on the transfer function of the middle ear. Characteristic abnormalities appear on tympanometry, acoustic reflexes, and the pure-tone audiogram. When the disease process extends into the cochlea, a sensorineural hearing loss develops, which may be accompanied by vestibular symptoms and/or tinnitus. Complete audiologic evaluation may prove to be uniquely helpful both in establishing a diagnosis by recognizing the characteristic patterns of stapes fixation and in planning for the surgical, medical, or hearing aid management of the patient with otosclerosis.
Topics: Audiometry; Audiometry, Pure-Tone; Audiometry, Speech; Humans; Otosclerosis; Reflex, Acoustic
PubMed: 8341569
DOI: No ID Found -
Journal of Speech and Hearing Research Mar 1970
Comparative Study
Topics: Adolescent; Adult; Audiometry; Child; Child, Preschool; Deafness; Female; Humans; Male; Methods
PubMed: 5421143
DOI: 10.1044/jshr.1301.74