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

Etymology: L, audire, to hear; AS, threscold
the lowest intensity at which a sound may be heard. An audiologist typically determines a patient's threshold for pure tones and speech.

auditory threshold

The minimum audible sound perceived.
See also: threshold
References in periodicals archive ?
Because it is simple, fast and easy to apply, this study decided to assess the correlation between the subjective faces scale and auditory thresholds, and the speech percent recognition index.
Descriptive data (mean, median, standard deviation, minimum and maximum values) of auditory thresholds of control (C) and study (E) groups (n = 40) Group n Mean SD Minimum Median Maximum (dBNA) (dBNA) (dBNA) (dBNA) (dBNA) C1 6 20.
However, subjects that received either LA or 6-FP prior to CO + noise had auditory thresholds no higher than rats treated with noise alone and in most instances had thresholds that were more sensitive than the noise-treated rats.
571(NS) Table 6: Auditory thresholds in Decibels at various levels of FBS-1ST Month Severity of diabetes mellitus with hearing loss in db (Mean [+ or -] SD) Frequency 50-100mg/ 101-150mg/ 151-200mg/ in Hertz dl (n=5) dl (n=18) dl (n=5) 500 -- 54.
1969) Auditory thresholds is the rhesus monkey using a closed system helmet.
Regarding the mean ages and auditory thresholds, similar values were also observed, with no differences that could compromise the application of the evaluation procedures.
An assessment of auditory thresholds was done for different frequencies by using pure tone audiometer (ELKON-GIGA3) for both exposed and unexposed groups in a sound proof room.
No case of treatment-induced hearing loss was seen, as auditory thresholds remained stable even in patients who did not respond to therapy.
Participants were screened for visual acuity and pure-tone auditory thresholds according to the licensing requirements of the Federal Highway Administration, Office of Motor Carriers (1994).
coordination, vibration and auditory thresholds, adaptation, and short term memory) are combined with packages of laboratory tests focusing on various markers of oxidative stress, hormonal balance, and bone density.
The existence or lack of hearing loss was classified according to the average of the tonal auditory thresholds at 500, 1000, 2000 and 4000 Hz, considering as normal audiometry those tests whose average values are less than or equal to 25 dBNA [10].
A larger group of patients of diabetic nephropathy with regular follow-up, a larger group of controls and modern equipments to detect objectively the auditory thresholds and vestibular functions, without the need of patients' co-operation, are essential for further more detailed study