Quick reorganization of memory traces for morphologically complex words in young children

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Leminen , M , Leminen , A , Smolander , S , Arkkila , E , Shtyrov , Y , Laasonen , M & Kujala , T 2020 , ' Quick reorganization of memory traces for morphologically complex words in young children ' , Neuropsychologia , vol. 138 , 107309 . https://doi.org/10.1016/j.neuropsychologia.2019.107309

Title: Quick reorganization of memory traces for morphologically complex words in young children
Author: Leminen, Miika; Leminen, Alina; Smolander, Sini; Arkkila, Eva; Shtyrov, Yury; Laasonen, Marja; Kujala, Teija
Contributor organization: Department of Psychology and Logopedics
Cognitive Brain Research Unit
Department of Digital Humanities
Language Acquisition, Representation, and Processing (L.A.R.P.)
Cognitive Science
HUS Head and Neck Center
Korva-, nenä- ja kurkkutautien klinikka
Behavioural Sciences
Mind and Matter
Date: 2020-02-17
Language: eng
Number of pages: 9
Belongs to series: Neuropsychologia
ISSN: 0028-3932
DOI: https://doi.org/10.1016/j.neuropsychologia.2019.107309
URI: http://hdl.handle.net/10138/330260
Abstract: Formation of neural mechanisms for morphosyntactic processing in young children is still poorly understood. Here, we addressed neural processing and rapid online acquisition of familiar and unfamiliar combinations of morphemes. Three different types of morphologically complex words - derived, inflected, and novel (pseudostem + real suffix) - were presented in a passive listening setting to 16 typically developing 3-4-year old children (as part of a longitudinal Helsinki SLI follow-up study). The mismatch negativity (MMN) component of event-related potentials (ERP), an established index of long-term linguistic memory traces in the brain, was analysed separately for the initial and final periods of the exposure to these items. We found MMN response enhancement for the inflected words towards the end of the recording session, whereas no response change was observed for the derived or novel complex forms. This enhancement indicates rapid build-up of a new memory trace for the combination of real morphemes, suggesting a capacity for online formation of whole-form lexicalized representations as one of the morphological mechanisms in the developing brain. Furthermore, this enhancement increased with age, suggesting the development of automatic morphological processing circuits in the age range of 3-4 years.
Subject: 515 Psychology
Lexical memory traces
Morphologically complex words
Lexical MMN
Neurocognitive development
6162 Cognitive science
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: acceptedVersion

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