Decision criteria for pure-tone detection used by two age groups of normal-hearing and hearing-impaired listeners.
Response criteria from a yes-no task and detection thresholds from two test procedures were measured for four groups of adults: younger normal-hearing, older normal-hearing, younger hearing-impaired, and older hearing-impaired. The two test procedures were an audiological procedure (which does not control for response bias) and a 21FC adaptive procedure (which does control for bias). The signal was a 500 or 4000 Hz tone presented in quiet. All four groups showed an equally conservative response bias in the yes-no task. In addition, neither age nor hearing loss affected the difference (6.5 dB) between the two threshold measures.
Marshall
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Naval Submarine Medical Research Laboratory, Groton, Connecticut.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D001301:Audiometry, Pure-Tone / Q000379:methods / Q000706:statistics & numerical data*; D001309:Auditory Threshold / Q000502:physiology*; D015982:Bias; D006309:Hearing / Q000502:physiology; D006311:Hearing Disorders / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D012680:Sensitivity and Specificity