title: Children's perception of nonnative-accented sentences in noise and quiet.
abstract: Adult listeners' word recognition is remarkably robust under a variety of adverse listening conditions. However, the combination of two simultaneous listening challenges (e.g., nonnative speaker in noise) can cause significant word recognition decrements. This study investigated how talker-related (native vs nonnative) and environment-related (noise vs quiet) adverse conditions impact children's and adults' word recognition. Five- and six-year-old children and adults identified sentences produced by one native and one nonnative talker in both quiet and noise-added conditions. Children's word recognition declined significantly more than adults' in conditions with one source of listening adversity (i.e., native speaker in noise or nonnative speaker in quiet). Children's performance when the listening challenges were combined (nonnative talker in noise) was particularly poor. Immature speech-in-noise perception may be a result of children's difficulties with signal segregation or selective attention. In contrast, the explanation for children's difficulty in the mapping of unfamiliar pronunciations to known words in quiet listening conditions must rest on children's limited cognitive or linguistic skills and experiences. These results demonstrate that children's word recognition abilities under both environmental- and talker-related adversity are still developing in the early school-age years.
authors.affiliation: Department of Speech and Hearing Sciences, Indiana University, Bloomington, Indiana 47405, USA.
authors.forename: Tessa
authors.initials: T
authors.lastname: Bent
authors.affiliation: Volen National Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02453, USA.
authors.forename: Eriko
authors.initials: E
authors.lastname: Atagi
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D000367:Age Factors; D001301:Audiometry, Pure-Tone; D001302:Audiometry, Speech; D001309:Auditory Threshold; D002648:Child; D002652:Child Behavior; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D003463:Cues; D004781:Environmental Exposure / Q000009:adverse effects; D005260:Female; D006801:Humans; D008297:Male; D009622:Noise / Q000009:adverse effects*; D010470:Perceptual Masking; D021641:Recognition, Psychology; D013067:Speech Perception; D055815:Young Adult