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1
The speed of lexical activation is altered in Parkinson's disease
Angwin, Anthony J.; Chenery, Helen J.; Copland, David A.. - : Taylor & Francis Inc, 2007
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2
Morphosyntactic and syntactic priming: an investigation of underlying processing mechanisms and the effects of Parkinson’s disease
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3
Semantic priming in Parkinson's disease: Evidence for delayed spreading activation
Abstract: Nineteen persons with Parkinson's disease (PD) and 19 matched control participants completed a battery of online lexical decision tasks designed to isolate the automatic and attentional aspects of semantic activation within the semantic priming paradigm. Results highlighted key processing abnormalities in PD. Specifically, persons with PD exhibited a delayed time course of semantic activation. In addition, results suggest that experimental participants were unable to implicitly process prime information and, therefore, failed to engage strategic processing mechanisms in response to manipulations of the relatedness proportion. Results are discussed in terms of the 'Gain/Decay' hypothesis (Milberg, McGlinchey-Berroth, Duncan, & Higgins, 1999) and the dopaminergic modulation of signal to noise ratios in semantic networks.
Keyword: 321007 Geriatrics and Gerontology; 321025 Rehabilitation and Therapy - Hearing and Speech; 730303 Occupational; 780108 Behavioural and cognitive sciences; Alzheimers-disease; Attention; C1; Clinical; Clinical Neurology; Hypothesis; Lexical Decision Task; Memory; Modulation; Psychology; Retrieval; Roles; Schizophrenia; speech and physiotherapy; Strategies
URL: https://espace.library.uq.edu.au/view/UQ:59969
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