Age of acquisition and semantic typicality effects

Age of acquisition (AOA) is a psycholinguistic variable that significantly influences behavioural measures (response times and accuracy rates) in tasks that require lexical and semantic processing. Its origin is – unlike the origin of semantic typicality (TYP), which is assumed at the semantic level – controversially discussed. Different theories propose AOA effects to originate either at the semantic level or at the link between semantics and phonology (lemma-level). The dissertation aims at investigating the influence of AOA and its interdependence with the semantic variable TYP on particularly semantic processing in order to pinpoint the origin of AOA effects. Therefore, three studies have been conducted that considered the variables AOA and TYP in semantic processing tasks (category verifications and animacy decisions) by means of behavioural and partly electrophysiological (ERP) data and in different populations (healthy young and elderly participants and in semantically impaired individuals with aphasia (IWA)). The behavioural and electrophysiological data of the three studies provide evidence for distinct processing levels of the variables AOA and TYP. The data further support previous assumptions on a semantic origin for TYP but question the same for AOA. The findings, however, support an origin of AOA effects at the transition between the word form (phonology) and the semantic level that can be captured at the behavioural but not at the electrophysiological level.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Universität Potsdam

Year

2016

Author dc:creator

• Räling, Romy

Contributors dc:contributor

• Wartenburger, Isabell
• Schröder, Astrid

• semantische Typikalität
• Erwerbsalter
• Aphasie
• semantische Verarbeitung
• ereigniskorrelierte Potentiale
• semantic typicality
• age of acquisition
• aphasia
• semantic processing
• event-related potentials

Statement dc:rights

• Keine öffentliche Lizenz: Unter Urheberrechtsschutz

Repository record source_url

https://publishup.uni-potsdam.de/frontdoor/index/index/docId/9594

OAI identifier oai:identifier

oai:kobv.de-opus4-uni-potsdam:9594