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Learning in Complex Environments: The Effects of Background Speech on Early Word Learning
Author(s) -
McMillan Brianna T. M.,
Saffran Jenny R.
Publication year - 2016
Publication title -
child development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.103
H-Index - 257
eISSN - 1467-8624
pISSN - 0009-3920
DOI - 10.1111/cdev.12559
Subject(s) - psychology , quiet , word learning , language acquisition , speech perception , language development , background noise , noise (video) , word (group theory) , speech recognition , audiology , cognitive psychology , linguistics , developmental psychology , perception , computer science , artificial intelligence , mathematics education , philosophy , vocabulary , medicine , telecommunications , physics , quantum mechanics , neuroscience , image (mathematics)
Although most studies of language learning take place in quiet laboratory settings, everyday language learning occurs under noisy conditions. The current research investigated the effects of background speech on word learning. Both younger (22‐ to 24‐month‐olds; n = 40) and older (28‐ to 30‐month‐olds; n = 40) toddlers successfully learned novel label–object pairings when target speech was 10 dB louder than background speech but not when the signal‐to‐noise ratio (SNR) was 5 dB. Toddlers (28‐ to 30‐month‐olds; n = 26) successfully learned novel words with a 5‐dB SNR when they initially heard the labels embedded in fluent speech without background noise, before they were mapped to objects. The results point to both challenges and protective factors that may impact language learning in complex auditory environments.