University of Oulu

Niemitalo-Haapola, E., Haapala, S., Kujala, T., Raappana, A., Kujala, T., & Jansson-Verkasalo, E. (2017). Developmental and noise-induced changes (Niemitalo-Haapola et al., 2017). Figshare.

Noise equally degrades central auditory processing in 2-and 4-year-old children

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Author: Niemitalo-Haapola, Elina1,2; Haapala, Sini2,3; Kujala, Teija4;
Organizations: 1Child Language Research Center, Faculty of Humanities, University of Oulu, Finland
2Clinical Neurophysiology, Oulu University Hospital, Finland
3Department of Psychology and Speech-Language Pathology, University of Turku, Finland
4Cognitive Brain Research Unit, Institute of Behavioural Sciences, University of Helsinki, Finland
5PEDEGO Research Unit, University of Oulu, Finland
6Department of Otorhinolaryngology–Head and Neck Surgery, Institute of Clinical Medicine, Oulu University Hospital, Finland
7Medical Research Center Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: American Speech-Language-Hearing Association, 2017
Publish Date: 2019-08-30


Purpose: The aim of this study was to investigate developmental and noise-induced changes in central auditory processing indexed by event-related potentials in typically developing children.

Method: P1, N2, and N4 responses as well as mismatch negativities (MMNs) were recorded for standard syllables and consonants, frequency, intensity, vowel, and vowel duration changes in silent and noisy conditions in the same 14 children at the ages of 2 and 4 years.

Results: The P1 and N2 latencies decreased and the N2, N4, and MMN amplitudes increased with development of the children. The amplitude changes were strongest at frontal electrodes. At both ages, background noise decreased the P1 amplitude, increased the N2 amplitude, and shortened the N4 latency. The noise-induced amplitude changes of P1, N2, and N4 were strongest frontally. Furthermore, background noise degraded the MMN. At both ages, MMN was significantly elicited only by the consonant change, and at the age of 4 years, also by the vowel duration change during noise.

Conclusions: Developmental changes indexing maturation of central auditory processing were found from every response studied. Noise degraded sound encoding and echoic memory and impaired auditory discrimination at both ages. The older children were as vulnerable to the impact of noise as the younger children.

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Series: Journal of speech, language, and hearing research
ISSN: 1092-4388
ISSN-E: 1558-9102
ISSN-L: 1092-4388
Volume: 60
Issue: 8
Pages: 2297 - 2309
DOI: 10.1044/2017_JSLHR-H-16-0267
Type of Publication: A1 Journal article – refereed
Field of Science: 616 Other humanities
Funding: The study was supported by the Child Language Research Center (E.N.-H.), the Emil Aaltonen foundation (E.N.-H.), The Jenny and Antti Wihuri Foundation (E.N.-H.), Oulu University Fund (E.N.-H), The Finnish Ministry of Education and Culture, the Langnet Doctoral Programme (S.H.), and The Academy of Finland (Grant 276414; T. K.).
Dataset Reference: Supplemental materials:
Copyright information: Copyright © 2017 American Speech-Language-Hearing Association. Published in this repository with the kind permission of the publisher.