title: Cochlear hearing loss and the detection of sinusoidal versus random amplitude modulation.
abstract: This study assessed the effect of cochlear hearing loss on detection of random and sinusoidal amplitude modulation. Listeners with hearing loss and normal-hearing listeners (eight per group) generated temporal modulation transfer functions (TMTFs) for envelope fluctuations carried by a 2000-Hz pure tone. TMTFs for the two groups were similar at low modulation rates but diverged at higher rates presumably because of differences in frequency selectivity. For both groups, detection of random modulation was poorer than for sinusoidal modulation at lower rates but the reverse occurred at higher rates. No evidence was found that cochlear hearing loss, per se, affects modulation detection.
authors: Department Otolaryngology - Head and Neck Surgery, University of North Carolina at Chapel Hill, 170 Manning Drive, Chapel Hill, North Carolina 27599-7070, USA.
authors: John H
authors: JH
authors: Grose
authors: Hearing and Speech Department, Children's Hospital, Los Angeles, California 90027, USA john_grose@med.unc.edu, hporter@chla.usc.edu, ebuss@med.unc.edu, joseph_hall@med.unc.edu.
authors: Heather L
authors: HL
authors: Porter
authors: Department Otolaryngology - Head and Neck Surgery, University of North Carolina at Chapel Hill, 170 Manning Drive, Chapel Hill, North Carolina 27599-7070, USA.
authors: Emily
authors: E
authors: Buss
authors: Department Otolaryngology - Head and Neck Surgery, University of North Carolina at Chapel Hill, 170 Manning Drive, Chapel Hill, North Carolina 27599-7070, USA.
authors: Joseph W
authors: JW
authors: Hall
mesh_terms: D001309:Auditory Threshold / Q000502:physiology*; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology*; D006320:Hearing Tests; D006801:Humans; D008875:Middle Aged