Duration-sensitive neurons in the auditory cortex

Eldré W. Beukes, Kevin J. Munro, Suzanne C. Purdy

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    The aim of this study was to determine whether there is a difference in the neural encoding of tones and complex sounds. Obligatory cortical auditory evoked potentials were obtained from normal hearing adults using tones and complex sounds with two stimulus durations and two inter-stimulus intervals. The response was smaller in amplitude for all of the long duration stimuli when using a short inter-stimulus interval. The difference in amplitude between the short and long duration tones disappeared when using the longer inter-stimulus interval but persisted for the complex sounds. The results provide evidence for duration-sensitive neurons in the auditory cortex as well as evidence for differences in the neural encoding of tones and complex sounds.

    Original languageEnglish
    Pages (from-to)1129-1133
    Number of pages5
    JournalNeuroReport
    Volume20
    Issue number13
    DOIs
    Publication statusPublished - Aug 2009

    Keywords

    • Complex stimulus
    • Duration-sensitive neurons
    • Inter-stimulus interval
    • Obligatory cortical auditory evoked potentials
    • Stimulus duration
    • Tonal stimulus

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