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The Dynamic Role of Subphonemic Cues in Speech Perception: Investigating Coarticulatory Processing Across Sound Classes
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42 |
Stimulus onset asynchrony and the timeline of word recognition : event-related potentials during sentence reading
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In: Neuropsychologia ; 50 (2012), 8. - S. 1852-1870. - ISSN 0028-3932. - eISSN 1873-3514 (2012)
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A real time Named Entity Recognition system for Arabic text mining
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Phonological Priming in Japanese-English Bilinguals: Evidence from Lexical Decision and ERP
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In: Electronic Thesis and Dissertation Repository (2012)
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Receptive Vocabulary Knowledge in Low-Functioning Autism as Assessed by Eye Movements, Pupillary Dilation, and Event-Related Potentials
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In: DTIC (2011)
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Automatic Top-Down Processing Explains Common Left Occipito-Temporal Responses to Visual Words and Objects
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In: CEREB CORTEX , 21 (1) 103 - 114. (2011) (2011)
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Attentional Cues During Speech Perception
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In: Open Access Dissertations (2011)
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Influence of aging on the neural correlates of autobiographical, episodic, and semantic memory retrieval
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Abstract:
We used fMRI to assess the neural correlates of autobiographical, semantic, and episodic memory retrieval in healthy young and older adults. Participants were tested with an eventrelated paradigm in which retrieval demand was the only factor varying between trials. A spatio-temporal partial least square analysis was conducted to identify the main patterns of activity characterizing the groups across conditions. We identified brain regions activated by all three memory conditions relative to a control condition. This pattern was expressed equally in both age groups and replicated previous findings obtained in a separate group of younger adults. We also identified regions whose activity differentiated among the different memory conditions. These patterns of differentiation were expressed less strongly in the older adults than in the young adults, a finding that was further confirmed by a barycentric discriminant analysis. This analysis showed an age-related dedifferentiation in autobiographical and episodic memory tasks but not in the semantic memory task or the control condition. These findings suggest that the activation of a common memory retrieval network is maintained with age, whereas the specific aspects of brain activity that differ with memory content are more vulnerable and less selectively engaged in older adults. Our results provide a potential neural mechanism for the well-known age differences in episodic/autobiographical memory, and preserved semantic memory, observed when older adults are compared with younger adults.
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Keyword:
1203 Language and Linguistics; 2805 Cognitive Neuroscience; 3310 Linguistics and Language; Age Related Differences; Event Related Fmri; Older adults; Partial Least Squares; Recognition Memory
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URL: https://espace.library.uq.edu.au/view/UQ:320642/UQ320642_OA.pdf https://espace.library.uq.edu.au/view/UQ:320642
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51 |
Inferior Frontal Gyrus Activation Predicts Individual Differences in Perceptual Learning of Cochlear-Implant Simulations
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In: J NEUROSCI , 30 (21) 7179 - 7186. (2010) (2010)
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Lexicality drives audio-motor transformations in Broca's area
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In: BRAIN LANG , 112 (1) 3 - 11. (2010) (2010)
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Early emotion word processing: evidence from event-related potentials
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Language experience shapes early electrophysiological responses to visual stimuli: the effects of writing system, stimulus length, and presentation duration.
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In: NeuroImage, vol 39, iss 4 (2008)
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Improving Information Extraction and Translation Using Component Interactions
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In: DTIC (2008)
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Neural correlates of foveal splitting in reading: Evidence from an ERP study of Chinese character recognition
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In: Hsiao, Janet Hui-wen; Shillcock, Richard; & Lee, Chia-ying. (2007). Neural correlates of foveal splitting in reading: Evidence from an ERP study of Chinese character recognition. Neuropsychologia, 45(6), 1280 - 1292. UC San Diego: Retrieved from: http://www.escholarship.org/uc/item/5b67s9nb (2007)
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Entropy Based Classifier Combination for Sentence Segmentation
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In: DTIC (2007)
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Rhyme processing in the brain: An ERP mapping study
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In: INT J PSYCHOPHYSIOL , 63 (3) 240 - 250. (2007) (2007)
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Distinct patterns of neural activity during memory formation of nonwords versus words
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In: J COGNITIVE NEUROSCI , 19 (11) 1776 - 1789. (2007) (2007)
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