Production of Inflected Novel Words in Older Adults With and Without Dementia

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Nikolaev , A , Higby , E , Hyun , J , Lehtonen , M , Ashaie , S , Hallikainen , M , Hänninen , T & Soininen , H 2020 , ' Production of Inflected Novel Words in Older Adults With and Without Dementia ' , Cognitive Science , vol. 44 , no. 8 , 12879 , pp. 1-22 . https://doi.org/10.1111/cogs.12879

Title: Production of Inflected Novel Words in Older Adults With and Without Dementia
Author: Nikolaev, Alexandre; Higby, Eve; Hyun, JungMoon; Lehtonen, Minna; Ashaie, Sameer; Hallikainen, Merja; Hänninen, Tuomo; Soininen, Hilkka
Contributor: University of Helsinki, Helsinki Collegium for Advanced Studies
University of Helsinki, University of Oslo
Date: 2020-08-06
Language: eng
Number of pages: 22
Belongs to series: Cognitive Science
ISSN: 0364-0213
URI: http://hdl.handle.net/10138/318865
Abstract: While cognitive changes in aging and neurodegenerative disease have been widely studied, language changes in these populations are less well understood. Inflecting novel words in a language with complex inflectional paradigms provides a good opportunity to observe how language processes change in normal and abnormal aging. Studies of language acquisition suggest that children inflect novel words based on their phonological similarity to real words they already know. It is unclear whether speakers continue to use the same strategy when encountering novel words throughout the lifespan or whether adult speakers apply symbolic rules. We administered a simple speech elicitation task involving Finnish‐conforming pseudo‐words and real Finnish words to healthy older adults, individuals with mild cognitive impairment, and individuals with Alzheimer's disease (AD) to investigate inflectional choices in these groups and how linguistic variables and disease severity predict inflection patterns. Phonological resemblance of novel words to both a regular and an irregular inflectional type, as well as bigram frequency of the novel words, significantly influenced participants' inflectional choices for novel words among the healthy elderly group and people with AD. The results support theories of inflection by phonological analogy (single‐route models) and contradict theories advocating for formal symbolic rules (dual‐route models).
Subject: 6121 Languages
515 Psychology
Phonological analogy
Inflectional morphology
Single-route models
Dual-route models
Alzheimer's disease
Mild cognitive impairment
Aging
Language
MILD COGNITIVE IMPAIRMENT
ALZHEIMERS ASSOCIATION WORKGROUPS
ELICITED-PRODUCTION
VERB MORPHOLOGY
DIAGNOSTIC GUIDELINES
NATIONAL INSTITUTE
DISEASE
ACQUISITION
FREQUENCY
LANGUAGE
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