Preattentive control of serial auditory processing in dichotic listening

E. William Yund, Akira Uno, David L Woods

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Dichotic listening performance was examined in an auditory selective attention task where subjects responded to occasional consonant-vowel (CV) or shaped broadband noise-burst (NB) targets in rapid serial auditory presentation (RASP). Trial types were randomized and included monaural CVs and NBs as well as dichotic CV-CV and CV-NB pairings. CVs were spoken by two different voices (male and female), and the two NB stimuli differed in their filter slopes at higher frequencies. The target was designated by stimulus category (/ba/, /da/, /ga/, or NB) and voice (e.g., 'female /ba/'). Performance was compared for targets in the left and right ears on monaural and dichotic trials using accuracy and reaction time (RT) measures. Right ear advantages (REAs) were present for CV targets with either CV or NB distractors, but not for monaural CVs. The REA found for monaural NB targets was eliminated by CV distractors, yielding a left ear advantage (LEA) for the distractor effect of CVs on NB targets. The pattern of results suggests initial preprocessing of speech stimuli through phonetic feature analysis, followed by serial attentional processing of the objects in the auditory field. REAs are attributed to a rightward asymmetry in the preattentive control of auditory attention similar to that found in visual search.

Original languageEnglish (US)
Pages (from-to)358-376
Number of pages19
JournalBrain and Language
Volume66
Issue number3
DOIs
StatePublished - Feb 15 1999

Fingerprint

Noise
Ear
stimulus
Phonetics
Consonant
Auditory Processing
phonetics
asymmetry
Reaction Time
performance
Hearing
Stimulus
Distractor

Keywords

  • Auditory
  • CVs
  • Hemispheric specialization
  • Reaction time
  • Selective attention
  • Speech

ASJC Scopus subject areas

  • Language and Linguistics
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology
  • Neuroscience(all)

Cite this

Preattentive control of serial auditory processing in dichotic listening. / Yund, E. William; Uno, Akira; Woods, David L.

In: Brain and Language, Vol. 66, No. 3, 15.02.1999, p. 358-376.

Research output: Contribution to journalArticle

Yund, E. William ; Uno, Akira ; Woods, David L. / Preattentive control of serial auditory processing in dichotic listening. In: Brain and Language. 1999 ; Vol. 66, No. 3. pp. 358-376.
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