auditory threshold


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threshold

 [thresh´old]
1. the level that must be reached for an effect to be produced, as the degree of intensity of stimulus that just produces a sensation.
2. that value at which a stimulus just produces a sensation, is just appreciable, or comes just within the limits of perception.
auditory threshold the slightest perceptible sound.
threshold of consciousness the lowest limit of sensibility; the point of consciousness at which a stimulus is barely perceived.
defibrillation threshold DFT; the minimum amount of energy in joules that will consistently terminate ventricular fibrillation.
fibrillation threshold the least intensity of an electrical impulse that will cause cardiac tissue to begin fibrillation.
pacing threshold the minimal electrical stimulus required to produce consistent cardiac depolarization.
renal threshold that concentration of a substance (threshold substance) in plasma at which it begins to be excreted in the urine.
sensing threshold in cardiac pacing terminology, the voltage of the minimum signal that consistently activates pulse generator function.

au·di·to·ry thresh·old

the level at which sound becomes audible.

auditory threshold

The minimum audible sound perceived.
See also: threshold
References in periodicals archive ?
The Kruskal-Wallis test was applied to analyze the difference between median auditory thresholds and the SRPI for each face.
In our study, auditory threshold was found to be higher in patients to their compliance with treatment than in those who were not compliant.
Several ototoxic treatments lead to the loss of hair cells, thus increasing auditory thresholds. Application of neomycin to the tympanic cavity induces the death of most hair cells and provides an excellent model of induced hearing loss (12).
2 corresponds to distance of auditory threshold. Mean distance of the 15 points surrounding the animal is 18.62 [+ or -] 2.43 m and is not significantly different from mean distance of seven measurements made from three other animals (19.95 [+ or -] 2.33 m; t = 1.228, P = 0.233) used to verify the method.
A key issue in the management of hearing loss in children who are identified at birth with severe-to-profound SNHL is the determination of appropriate target gain levels for amplification, which is based on auditory thresholds. Prior to the availability of ASSR audiometry, the setting of target gains in the "no response by ABR" child was problematic at best, and gain targets were only educated guesses.
The means and standard deviations of the auditory thresholds of the tested ears for all groups are shown in Figure 1.
Carbon monoxide exposure potentiates high-frequency auditory threshold shifts induced by noise.
(47) In view of these reports and the fact that many clinicians were finding that steroids had some beneficial effects, the lead author's (M.D.S.) laboratory initiated an animal study to investigate the effects of transtympanic steroids on cochlear blood flow, auditory threshold sensitivity, and histology.
The Table 1 presents the socio-demographic data of the subjects evaluated, the auditory threshold and the presence or absence of tinnitus in at least one ear or head in the studied groups.
After 6 months of treatment the auditory threshold improved at higher frequencies (4000,6000,8000 Hz) in both fasting and postprandial blood sugar levels (P<0.05 significant by ANOVA method)
Bosnyak, "Residual inhibition functions overlap tinnitus spectra and the region of auditory threshold shift," JARO Journal of the Association for Research in Otolaryngology, vol.
Normal-hearing individuals typically hear with both ears and have auditory thresholds that are similar between the two ears.