Activation of duration-sensitive auditory cortical fields in humans

Claude Alain, David L Woods, Diego Covarrubias

Research output: Contribution to journalArticle

54 Scopus citations

Abstract

The influence of stimulus duration on auditory evoked potentials (AEPs) was examined for tones varying randomly in duration, location, and frequency in an auditory selective attention task. Stimulus duration effects were isolated as duration difference waves by subtracting AEPs to short duration tones from AEPs to longer duration tones of identical location, frequency and rise time. This analysis revealed that AEP components generally increased in amplitude and decreased in latency with increments in signal duration, with evidence of longer temporal integration times for lower frequency tones. Different temporal integration functions were seen for different N1 subcomponents. The results suggest that different auditory cortical areas have different temporal integration times, and that these functions vary as a function of tone frequency.

Original languageEnglish (US)
Pages (from-to)531-539
Number of pages9
JournalElectroencephalography and Clinical Neurophysiology - Evoked Potentials
Volume104
Issue number6
DOIs
StatePublished - Nov 1997

Keywords

  • Auditory
  • Cortex
  • Dichotic
  • Evoked potentials
  • Frequency
  • Latency
  • Temporal integration
  • Tone duration
  • Tonotopy

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

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