How is pure-tone audiometry defined?

Pure-tone audiometry is defined as a behavioral test that measures hearing sensitivity using tones. It involves presenting standardized pure tones at various frequencies and intensities to a listener, who typically responds by indicating whether they can hear the sound. This method effectively determines the quietest sounds the listener can detect at different frequencies, allowing audiologists to map out an individual's hearing abilities across the frequency spectrum.

This technique is fundamental in audiology as it provides a clear representation of an individual's hearing threshold levels, which are essential for diagnosing hearing loss. Understanding hearing sensitivity is crucial as it forms the basis for further assessments and interventions, such as hearing aid fitting or rehabilitation strategies. The results are often plotted on an audiogram, which visually depicts the degree and type of hearing loss, if present.

The other options do not accurately describe pure-tone audiometry. Measuring speech understanding pertains to other tests like speech audiometry, while the use of visual stimuli is characteristic of tests like visual reinforcement audiometry, which is typically for children. Lastly, assessing auditory processing is not the focus of pure-tone audiometry, as it typically evaluates peripheral auditory function rather than higher-level processing abilities in the central auditory system.