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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 13 of 13 1 Semantic activation in Parkinson's disease patients on and off levodopa Angwin, Anthony J.; Arnott, Wendy L.; Copland, David A.. - : Elsevier Masson, 2009 BASE Show details 2 Hemispheric contributions to semantic activation: A divided visual field and event-related potential investigation of time-course. Smith, Erin R.; Chenery, Helen J.; Angwin, Anthony J.. - : Elsevier, 2009 BASE Show details 3 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 BASE Show details 4 Verbal fluency, semantics, context and symptom complexes in schizophrenia Vogel, Adam P.; Chenery, Helen J.; Dart, Catriona M.. - : Springer New York LLC, 2009 BASE Show details 5 Impaired semantic inhibition during lexical ambiguity repetition in parkinson's disease Copland, David A.; Sefe, Gameli; Ashley, Jane. - : Elsevier Masson, 2009 BASE Show details 6 The basal ganglia circuits, dopamine, and ambiguous word processing: A neurobiological account of priming studies in Parkinson's disease Chenery, Helen J.; Angwin, Anthony J.; Copland, David A.. - : Cambridge University Press, 2008 BASE Show details 7 Transdermal nicotine modulates strategy-based attentional semantic processing in non-smokers Holmes, Anna D.; Chenery, Helen J.; Copland, David A.. - : Cambridge University Press, 2008 Abstract: Nicotine has been shown to improve various aspects of cognitive processing such as attention and memory, however, its effects on lexical-semantic processing are relatively uncharted. Recent investigations of mnemonic processing in minimally deprived smokers suggest that nicotine might selectively modulate processes concerned with associative memory. This study investigated the effects of nicotine on lexical-semantic processing in non-smokers using a strategy-based lexical-decision priming paradigm. Transdermal nicotine patches (7 mg/24 h) were administered within a double-blind, placebo-controlled, cross-over design. Participants were trained to expect target words to come from a specified semantic category based on the prime word, although in some instances trained expectations were not met. Participants were presented with the stimuli at either a short or long stimulus onset asynchrony (SOA) to target automatic and attentional processing, respectively (n=12 and 17 for the short and long SOAs, respectively). Nicotine was found to selectively affect priming condition reaction times at the long SOA, indicating a nicotinic modulation of attentional mechanisms. Specifically, facilitation effects were dominant under placebo compared to a dominance of inhibition effects under nicotine. These results suggest that nicotine supports inhibitory attentional mechanisms in cognitively demanding semantic processing paradigms. Keyword: 1109 Neurosciences; 380102 Learning; 730303 Occupational; Attention; C1; Cognition and Language; Lexical-semantics; Memory; Nicotine; Non-smokers; Priming; speech and physiotherapy URL: https://espace.library.uq.edu.au/view/UQ:137707 BASE Hide details 8 Neural correlates of semantic priming for ambiguous words: An event-related fMRI study Copland, David A.; de Zubicaray, Greig I.; McMahon, Katie. - : Elsevier BV, 2007 BASE Show details 9 The speed of lexical activation is altered in Parkinson's disease Angwin, Anthony J.; Chenery, Helen J.; Copland, David A.. - : Taylor & Francis Inc, 2007 BASE Show details 10 Self-paced reading and sentence comprehension in Parkinson's disease Angwin, Anthony J.; Chenery, Helen J.; Copland, David A.. - : Pergamon, 2006 BASE Show details 11 Summation of semantic priming and complex sentence comprehension in Parkinson's disease Angwin, Anthony J.; Chenery, Helen J.; Copland, David A.. - : Elsevier Science, 2005 BASE Show details 12 Hemispheric contributions to lexical ambiguity resolution: Evidence from individuals with complex language impairment following left-hemisphere lesions Copland, David A.; Chenery, Helen J.; Murdoch, Bruce E.. - : Elsevier, 2002 BASE Show details 13 Discourse priming of homophones in individuals with dominant subcortical lesions, cortical lesions, and Parkinson’s disease Copland, David A.; Chenery, Helen J.; Murdoch, Bruce E.. - : Psychology Press, 2001 BASE Show details

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