title: Effect of stimulus bandwidth and duration on monaural envelope correlation perception.
abstract: Monaural envelope correlation perception is the ability to discriminate between stimuli composed of two or more bands of noise based on envelope correlation. Sensitivity decreases as stimulus bandwidth is reduced below 100 Hz. The present study manipulated stimulus bandwidth (25-100 Hz) and duration (25-800 ms) to evaluate whether performance of highly trained listeners is limited by the number of inherent modulation periods in each presentation. Stimuli were two bands of noise, separated by a 500-Hz gap centered on 2250 Hz. Performance improved reliably with increasing numbers of envelope modulation periods, although there were substantial individual differences.
authors.affiliation: Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 ebuss@med.unc.edu.
authors.forename: Emily
authors.initials: E
authors.lastname: Buss
authors.affiliation: Department of Speech, Language, and Hearing Sciences, University of Arizona, Tucson, Arizona 85721 hdai@email.arizona.edu.
authors.forename: Huanping
authors.initials: H
authors.lastname: Dai
authors.affiliation: Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 jwh@med.unc.edu.
authors.forename: Joseph W
authors.initials: JW
authors.lastname: Hall
mesh_terms: D000161:Acoustic Stimulation; D000368:Aged; D001307:Auditory Perception / Q000502:physiology*; D001309:Auditory Threshold; D006801:Humans; D008875:Middle Aged; D010470:Perceptual Masking / Q000502:physiology*; D010897:Pitch Discrimination / Q000502:physiology*