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170204 Linguistic Processes (incl. Speech Production and Comprehension) (3)
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Arnott, Wendy L. (13)
Murdoch, Bruce E. (13)
Chenery, Helen J. (12)
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Copland, David A. (8)
Angwin, Anthony J. (6)
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Hits 1 – 13 of 13
1
The Influence of Dopamine on Automatic and Controlled Semantic Activation in Parkinson's Disease
Arnott, Wendy L.
;
Copland, David A.
;
Chenery, Helen J.
. - : SAGE-Hindawi Access to Research, 2011
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2
The influence of dopamine on automatic and controlled semantic activation in Parkinson's disease.
Arnott, Wendy L.
;
Copland, David A.
;
Chenery, Helen J.
. - : Hindawi Publishing, 2011
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3
Decreased semantic competitive inhibition in Parkinson's disease: evidence from an investigation of word search performance
Angwin, Anthony
;
Chenery, Helen J.
;
Silburn, Peter A.
...
In:
International journal of speech language pathology. - Abingdon : Informa Healthcare
12 (2010) 5, 437-445
BLLDB
OLC Linguistik
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4
Decreased semantic competitive inhibition in Parkinson's disease: Evidence from an investigation of word search performance
Arnott, Wendy L.
;
Chenery, Helen J.
;
Angwin, Anthony J.
. - : Informa Healthcare, 2010
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5
Semantic activation in Parkinson's disease patients on and off levodopa
Angwin, Anthony J.
;
Arnott, Wendy L.
;
Copland, David A.
;
Haire, Miriam P. L.
;
Murdoch, Bruce E.
;
Silburn, Peter A.
;
Chenery, Helen J.
. - : Elsevier Masson, 2009
Abstract:
Research suggests that dopamine may exert a neuromodulatory influence on automatic spreading activation within semantic networks. In order to investigate the influence of dopamine depletion on semantic activation in Parkinson's disease (PD), nine patients with PD performed a lexical decision task when on and off levodopa medication. Eleven healthy controls matched to the PD patients in terms of sex, age and education also participated in the study. Both directly related word pairs (e.g., tiger - stripe) and indirectly related word pairs (word pairs related via a mediating word, e.g., chalk - black) were used to measure semantic activation across stimulus onset asynchronies (SOAs) of 270 msec, 520 msec and 1020 msec. Analysis of variance statistics revealed that the activation of directly related and indirectly related targets was slower for the PD group relative to the control group. Within group comparisons revealed further changes to semantic activation in PD patients off medication, with no activation of directly or indirectly related target words evident in PD patients off medication. These results further clarify the nature of dopamine's neuromodulatory influence on semantic activation, and suggest that the nature of altered semantic activation in PD may depend on the magnitude of dopamine depletion. (C) 2009 Elsevier Srl. All rights reserved.
Keyword:
170204 Linguistic Processes (incl. Speech Production and Comprehension)
;
920201 Allied Health Therapies (excl. Mental Health Services)
;
Automatic spreading activation
;
C1
;
Dopamine
;
Language
;
Parkinson's disease
;
Semantic priming
;
Spreading activation
URL:
https://espace.library.uq.edu.au/view/UQ:180359
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6
Priming of semantic features in Parkinson's disease
Angwin, Anthony J.
;
Chenery, Helen J.
;
Copland, David A.
...
In:
Brain & language. - Orlando, Fla. [u.a.] : Elsevier
99 (2006) 1-2, 100
OLC Linguistik
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7
Priming of semantic features in Parkinson’s disease
Angwin, Anthony J.
;
Chenery, Helen J.
;
Copland, David A.
. - : Academic Press, 2006
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8
Morphosyntactic and syntactic priming: an investigation of underlying processing mechanisms and the effects of Parkinson's disease
Arnott, Wendy L.
;
Chenery, Helen J.
;
Murdoch, Bruce E.
...
In:
Journal of neurolinguistics. - Orlando, Fla. : Elsevier
18 (2005) 1, 1-28
OLC Linguistik
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9
Morphosyntactic and syntactic priming : an investigation of underlying processing mechanisms and the effects of Parkinson's disease
Arnott, Wendy L.
;
Chenery, Helen J.
;
Murdoch, Bruce E.
...
In:
Journal of neurolinguistics. - Orlando, Fla. : Elsevier
18 (2005) 1, 1-28
BLLDB
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10
Morphosyntactic and syntactic priming: an investigation of underlying processing mechanisms and the effects of Parkinson’s disease
Arnott, Wendy L.
;
Chenery, Helen J.
;
Murdoch, Bruce E.
. - : Pergamon, 2005
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11
Coordinate and Attribute Semantic Priming in People with Parkinson’s Disease
Chenery, Helen J.
;
Copland, David A.
;
Murdoch, Bruce E.
. - : Cambridge University Press, 2004
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12
Semantic priming in Parkinson's disease: Evidence for delayed spreading activation
Arnott, Wendy L.
;
Chenery, Helen J.
;
Murdoch, Bruce E.
. - : Psychology Press, 2001
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13
Narrative discourse in multiple sclerosis : an investigation of conceptual structure
Arnott, Wendy L.
;
Jordan, F.M.
;
Murdoch, Bruce E.
...
In:
Aphasiology. - London [u.a.] : Routledge, Taylor & Francis Group
11 (1997) 10, 969-991
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