Development of a fast method for determining psychophysical tuning curves

Aleksander Sȩk, José Alcántara, Brian C J Moore, Karolina Kluk, Andrzej Wicher, Aleksander Sek

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Psychophysical tuning curves (PTCs) can be used to assess the frequency selectivity of the auditory system and to detect and delimit "dead regions" in the cochlea. However, the traditional method for determining PTCs takes too long for use in clinical practice. We evaluated a fast method for determining PTCs, using a band of noise that sweeps in centre frequency and a Békésy method to adjust the masker level required for threshold. The shapes of the PTCs were similar for the fast and traditional methods, for both normally hearing and hearing-impaired subjects. Rates of change of masker level of 2 dB/s or less gave the most reliable results. A relatively wide bandwidth (20 percent of the signal frequency or 320 Hz, whichever is the smaller) was needed to minimise the influence of beat detection. When the signal frequency fell within a dead region, the fast method gave PTCs with shifted tips. © 2005 British Society of Audiology, International Society of Audiology, and Nordic Audiological Society.
    Original languageEnglish
    Pages (from-to)408-420
    Number of pages12
    JournalInternational Journal of Audiology
    Volume44
    Issue number7
    DOIs
    Publication statusPublished - Jul 2005

    Keywords

    • Dead regions
    • Psychophysical tuning curves

    Fingerprint

    Dive into the research topics of 'Development of a fast method for determining psychophysical tuning curves'. Together they form a unique fingerprint.

    Cite this