Perceptual organization in a comodulation masking release interference paradigm: exploring the role of amplitude modulation, frequency modulation, and harmonicity.
Two areas of interest within auditory scene analysis are the identification of cues which contribute to auditory grouping and/or segregation, and the methodology employed to measure such effects. The present study explored the roles of three purported grouping cues--correlated AM, correlated FM, and harmonicity--using a comodulation masking release interference paradigm. This method was reasoned to be free of alterations in the subject's mode of listening (analytic versus synthetic). The results suggested that correlated AM was a viable grouping cue. For some listeners, the presence of FM also appeared to provide a grouping cue, but, generally, no effect of coherence of FM was observed. No effect of harmonicity was observed in this paradigm.
Grose
J H
JH
University of North Carolina at Chapel Hill, Division of Otolaryngology/Head and Neck Surgery 27599-7070, USA.
Hall
J W
JW
Mendoza
L
L
D000328:Adult; D001309:Auditory Threshold; D007839:Functional Laterality; D006309:Hearing / Q000502:physiology; D006801:Humans; D009622:Noise; D010470:Perceptual Masking; D011571:Psychoacoustics