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1
The influence of contextual constraint on verbal selection mechanisms and its neural correlates in Parkinson’s disease
Isaacs, Megan L.; McMahon, Katie L.; Angwin, Anthony J.. - : Springer New York LLC, 2020
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2
Functional correlates of strategy formation and verbal suppression in Parkinson's disease
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3
Neural mechanisms for monitoring and halting of spoken word production
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4
An fMRI investigation of the effects of attempted naming on word retrieval in aphasia
Heath, Shiree; McMahon, Katie L.; Nickels, Lyndsey. - : Frontiers Research Foundation, 2015
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5
Facilitation of naming in aphasia with auditory repetition: an investigation of neurocognitive mechanisms
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6
Neural mechanisms underlying the facilitation of naming in aphasia using a semantic task: an fMRI study
Heath, Shiree; McMahon, Katie L.; Nickels, Lyndsey. - : BioMed Central, 2012
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7
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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8
Negative priming in naming of categorically related objects: An fMRI study
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9
A 4T er-fMRI study of orthographic effects on picture naming in Chinese
Weekes, Brendan; De Zubicaray, Greig I.; McMahon, Katie L.. - : Cognitive Neuroscience Society, 2007
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10
A 4T Functional MRI study of picture-word interference effects on Chinese character recognition
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11
fMRI evidence of word frequency and strength effects in recognition memory
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12
fMRI evidence of word frequency and strength effects during episodic memory encoding
Abstract: Word frequency (WF) and strength effects are two important phenomena associated with episodic memory. The former refers to the superior hit-rate (HR) for low (LF) compared to high frequency (HF) words in recognition memory, while the latter describes the incremental effect(s) upon HRs associated with repeating an item at study. Using the "subsequent memory" method with event-related fMRI, we tested the attention-at-encoding (A-E) [M. Glanzer, J.K. Adams, The mirror effect in recognition memory: data and theory, J. Exp. Psychol.: Learn Mem. Cogn. 16 (1990) 5-16] explanation of the WF effect. In addition to investigating encoding strength, we addressed if study involves accessing prior representations of repeated items via the same mechanism as that at test [J.L. McClelland, M. Chappell, Familiarity breeds differentiation: a subjective-likelihood approach to the effects of experience in recognition memory, Psychol. Rev. 105 (1998) 724-760], entailing recollection [K.J. Malmberg, J.E. Holden, R.M. Shiffirin, Modeling the effects of repetitions, similarity, and normative word frequency on judgments of frequency and recognition memory, J. Exp. Psychol.: Learn Mem. Cogn. 30 (2004) 319-331] and whether less processing effort is entailed for encoding each repetition [M. Cary, L.M. Reder, A dual-process account of the list-length and strength-based mirror effects in recognition, J. Mem. Lang. 49 (2003) 231-248]. The increased BOLD responses observed in the left inferior prefrontal cortex (LIPC) for the WF effect provide support for an AE account. Less effort does appear to be required for encoding each repetition of an item, as reduced BOLD responses were observed in the LIPC and left lateral temporal cortex; both regions demonstrated increased responses in the conventional subsequent memory analysis. At test, a left lateral parietal BOLD response was observed for studied versus unstudied items, while only medial parietal activity was observed for repeated items at study, indicating that accessing prior representations at encoding does not necessarily occur via the same mechanism as that at test, and is unlikely to involve a conscious recall-like process such as recollection. This information may prove useful for constraining cognitive theories of episodic memory. (c) 2004 Elsevier B.V. All rights reserved.
Keyword: 1109 Neurosciences; 380200 Linguistics; 730111 Hearing; C1; Cognition; Episodic memory; fMRI; Learning; Neural basis of behaviour; Repetition priming; speech and their disorders; vision; Word frequency
URL: https://espace.library.uq.edu.au/view/UQ:77808
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13
The semantic interference effect in the picture-word paradigm: An event-related fMRI study employing overt responses
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