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1
An EMA analysis of the effect of increasing word length on consonant production in apraxia of speech: A case study
Bartle, Carly J.; Goozee, Justine V.; Murdoch, Bruce E.. - : Taylor & Francis, 2007
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2
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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3
Acoustic and perceptual analysis of speech adaptation to an artificial palate
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4
A nonspeech investigation of tongue function in Parkinson's disease
McAuliffe, Megan J.; Ward, Elizabeth C.; Murdoch, Bruce E.. - : OUP for the Gerontological Society of America, 2005
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5
Borrowing from models of motor control to translate cognitive processes: Evidence for hypokinetic-hyperkinetic linguistic homologues?
Abstract: In relation to motor control, the basal ganglia have been implicated in both the scaling and focusing of movement. Hypokinetic and hyperkinetic movement disorders manifest as a consequence of overshooting and undershooting GPi (globus pallidus internus) activity thresholds, respectively. Recently, models of motor control have been borrowed to translate cognitive processes relating to the overshooting and undershooting of GPi activity, including attention and executive function. Linguistic correlates, however, are yet to be extrapolated in sufficient detail. The aims of the present investigation were to: (1) characterise cognitive-linguistic processes within hypokinetic and hyperkinetic neural systems, as defined by motor disturbances; (2) investigate the impact of surgically-induced GPi lesions upon language abilities. Two Parkinsonian cases with opposing motor symptoms (akinetic versus dystonic/dyskinetic) served as experimental subjects in this research. Assessments were conducted both prior to as well as 3 and 12 months following bilateral posteroventral pallidotomy (PVP). Reliable changes in performance (i.e. both improvements and decrements) were typically restricted to tasks demanding complex linguistic operations across subjects. Hyperkinetic motor symptoms were associated with an initial overall improvement in complex language function as a consequence of bilateral PVP, which diminished over time, suggesting a decrescendo effect relative to surgical beneficence. In contrast, hypokinetic symptoms were associated with a more stable longitudinal linguistic profile, albeit defined by higher proportions of reliable decline versus improvement in postoperative assessment scores. The above findings endorsed the integration of the GPi within cognitive mechanisms involved in the arbitration of complex language functions. In relation to models of motor control, 'focusing' was postulated to represent the neural processes underpinning lexical-semantic manipulation, and 'scaling' the potential allocation of cognitive resources during the mediation of high-level linguistic tasks. (c) 2005 Elsevier Ltd. All rights reserved.
Keyword: 380302 Linguistic Processes (incl. Speech Production and Comprehension); 730303 Occupational; Advanced Parkinsons-disease; Applied Linguistics; Basal Ganglia; Bilateral Pallidotomy; C1; Deep Brain-stimulation; Experimental; Follow-up; Language; Medial Pallidotomy; Movement-disorders; Neurosciences; Outcome Following Pallidotomy; Pallidotomy; Parkinson's Disease; Psychology; speech and physiotherapy; Stereotactic Pallidotomy; Unilateral Posteroventral Pallidotomy
URL: https://espace.library.uq.edu.au/view/UQ:74962
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6
Language outcomes subsequent to treatment of brainstem tumour in childhood
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7
Beyond verbal fluency: Investigating the long-term effects of bilateral subthalamic (STN) deep brain stimulation (DBS) on language in two cases
Murdoch, Bruce E.; Theodoros, Deborah G.; Hall, Bruce. - : Routledge Taylor & Francis Ltd, 2005
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8
Introducing the pressure-sensing palatograph - the next frontier in electropalatography
Murdoch, Bruce E.; Goozee, Justine V.; Veidt, Martin. - : Taylor & Francis, 2004
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9
Effects of speaking rate on EMA-derived lingual kinematics: a preliminary investigation
Goozee, Justine V.; Lapointe, Leonard L.; Murdoch, Bruce E.. - : Taylor & Francis Ltd, 2003
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10
Hemispheric contributions to lexical ambiguity resolution: Evidence from individuals with complex language impairment following left-hemisphere lesions
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11
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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12
Subcortical brain mechanisms in speech and language
Murdoch, Bruce E.. - : Karger, 2001
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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
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14
Kinematic analysis of tongue movements in dysarthria following traumatic brain injury using electromagnetic articulography
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15
Which one of these is not like the others? An inter-hospital study of the viscosity of thickened fluids
Cichero, Julie A. Y.; Jackson, Oliver; Halley, Peter J.. - : American Speech-Language-Hearing Association, 2000
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16
The use of a miniature lip transducer system in the assessment of patients with Parkinsons disease
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