title: Temporal processing in the auditory brainstem response by full-term 6-week- and 9-month-old infants.
abstract: Early auditory temporal processing abilities are important for language acquisition and for later reading abilities. In the present study, auditory brainstem responses (ABRs) were recorded in a forward-masking paradigm in healthy, full-term infants aged 6 weeks (n = 111) and 9 months (n = 62). Our purpose was to establish normative values of forward-masking ABRs and investigate the development of auditory temporal processing in infants at these ages. Infants were presented with pairs of stimuli (an initial "masker" followed by a "probe") separated by different time intervals (8, 16, and 64 ms). Results showed that as masker-probe intervals became longer and as infants got older, Wave V latency to the probe shortened. The greatest improvements in Wave V latencies from 6 weeks to 9 months of age were observed in the 64-ms masker-probe interval, suggesting that central auditory nervous system related to the temporal processing at this interval might undergo rapid development during the first year of life.
authors.affiliation: Department of Psychology, Renmin University of China, Beijing, 100872, China.
authors.forename: Xiaoqin
authors.initials: X
authors.lastname: Mai
authors.affiliation: 1] Center for Human Growth and Development, University of Michigan, Ann Arbor, Michigan, 48109, USA [2] Department of Psychology, University of Michigan, Ann Arbor, Michigan, 48109, USA.
authors.forename: Twila
authors.initials: T
authors.lastname: Tardif
authors.affiliation: Department of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Zhejiang, 310003, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Xu
authors.affiliation: Department of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Zhejiang, 310003, China.
authors.forename: Mingyan
authors.initials: M
authors.lastname: Li
authors.affiliation: 1] Center for Human Growth and Development, University of Michigan, Ann Arbor, Michigan, 48109, USA [2] Department of Otorhinolaryngology, University of Michigan, Ann Arbor, Michigan, 48109, USA.
authors.forename: Paul R
authors.initials: PR
authors.lastname: Kileny
authors.affiliation: Department of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Zhejiang, 310003, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Shao
authors.affiliation: 1] Center for Human Growth and Development, University of Michigan, Ann Arbor, Michigan, 48109, USA [2] Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, 48109, USA.
authors.forename: Betsy
authors.initials: B
authors.lastname: Lozoff
mesh_terms: D001307:Auditory Perception / Q000502:physiology*; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006801:Humans; D007223:Infant; D007804:Language Development; D008297:Male