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N400 and Emotional Word Processing in Parkinson's Disease
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Lexical ambiguity resolution during sentence processing in Parkinson’s disease: An event-related potential study
Abstract: Event-related potentials (ERPs) were recorded to investigate lexical ambiguity resolution during sentence processing in 16 people with Parkinson’s disease (PD) and 16 healthy controls. Sentences were presented word-by-word on computer screen, and participants were required to decide if a subsequent target word was related to the meaning of the sentence. The task consisted of related, unrelated and ambiguous trials. For the ambiguous trials, the sentence ended with an ambiguous word and the target was related to one of the meanings of that word, but not the one captured by the sentence context (e.g., ‘He dug with the spade’, Target ‘ACE’). Both groups demonstrated slower reaction times and lower accuracy for the ambiguous condition relative to the unrelated condition, however accuracy was impacted by the ambiguous condition to a larger extent in the PD group. These results suggested that PD patients experience increased difficulties with contextual ambiguity resolution. The ERP results did not reflect increased ambiguity resolution difficulties in PD, as a similar N400 effect was evident for the unrelated and ambiguous condition in both groups. However, the magnitude of the N400 for these conditions was correlated with a measure of inhibition in the PD group, but not the control group. The ERP results suggest that semantic processing may be more compromised in PD patients with increased response inhibition deficits.
Keyword: Research Article
URL: https://doi.org/10.1371/journal.pone.0176281
http://www.ncbi.nlm.nih.gov/pubmed/28475582
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5419504/
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3
N400 and emotional word processing in Parkinson's disease
Dissanayaka, Nadeeka N. W.; Au, Tiffany R.; Angwin, Anthony J.. - : American Psychological Association, 2017
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4
Lexical ambiguity resolution during sentence processing in Parkinson's disease: an event-related potential study
Angwin, Anthony J.; Dissanayaka, Nadeeka N. W.; McMahon, Katie L.. - : Public Library of Science, 2017
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5
A neurophysiological study of semantic processing in Parkinson’s disease
Angwin, Anthony J.; Dissanayaka, Nadeeka N. W.; Moorcroft, Alison. - : Cambridge University Press, 2017
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6
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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7
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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8
Decreased semantic competitive inhibition in Parkinson's disease: evidence from an investigation of word search performance
In: International journal of speech language pathology. - Abingdon : Informa Healthcare 12 (2010) 5, 437-445
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OLC Linguistik
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9
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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10
Dopaminergic Neuromodulation of Semantic Processing: A 4-T fMRI Study with Levodopa
Copland, David A.; McMahon, Katie L.; Silburn, Peter A.. - : Oxford University Press, 2009
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11
Dopaminergic Neuromodulation of Semantic Processing: A 4-T fMRI Study with Levodopa
Copland, David A.; McMahon, Katie L.; Silburn, Peter A.. - : Oxford University Press, 2009
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12
Semantic activation in Parkinson's disease patients on and off levodopa
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13
Dopaminergic neuromodulation of semantic processing: A 4-T fMRI study with levodopa
Copland, David A.; McMahon, Katie L.; Silburn, Peter A.. - : Oxford University Press., 2009
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14
Semantic and affective priming as a function of stimulation of the subthalamic nucleus in Parkinson's disease
In: Brain. - Oxford : Oxford Univ. Press 130 (2007) 5, 1395-1407
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15
The effects of subthalamic deep brain stimulation on noun/verb generation and selection from competing alternatives in Parkinson's disease
Castner, Joanna E; Chenery, Helen J; Silburn, Peter A. - : BMJ Publishing Group Ltd, 2007
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16
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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17
Self-paced reading and sentence comprehension in Parkinson's disease
In: Journal of neurolinguistics. - Orlando, Fla. : Elsevier 19 (2006) 3, 239-252
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OLC Linguistik
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18
Priming of semantic features in Parkinson's disease
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 99 (2006) 1-2, 100
OLC Linguistik
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19
Self-paced reading and sentence comprehension in Parkinson's disease
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20
Priming of semantic features in Parkinson’s disease
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