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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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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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Abstract:
This study investigated the neural plasticity associated with perceptual learning of a cochlear implant (CI) simulation. Normal-hearing listeners were trained with vocoded and spectrally shifted speech simulating a CI while cortical responses were measured with functional magnetic resonance imaging (fMRI). A condition in which the vocoded speech was spectrally inverted provided a control for learnability and adaptation. Behavioral measures showed considerable individual variability both in the ability to learn to understand the degraded speech, and in phonological working memory capacity. Neurally, left-lateralized regions in superior temporal sulcus and inferior frontal gyrus (IFG) were sensitive to the learnability of the simulations, but only the activity in prefrontal cortex correlated with interindividual variation in intelligibility scores and phonological working memory. A region in left angular gyrus (AG) showed an activation pattern that reflected learning over the course of the experiment, and covariation of activity in AG and IFG was modulated by the learnability of the stimuli. These results suggest that variation in listeners' ability to adjust to vocoded and spectrally shifted speech is partly reflected in differences in the recruitment of higher-level language processes in prefrontal cortex, and that this variability may further depend on functional links between the left inferior frontal gyrus and angular gyrus. Differences in the engagement of left inferior prefrontal cortex, and its covariation with posterior parietal areas, may thus underlie some of the variation in speech perception skills that have been observed in clinical populations of CI users.
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Keyword:
AUDITORY-CORTEX; BRAIN; CHILDREN; COMPREHENSION; EVENT-RELATED FMRI; NOISE-VOCODED SPEECH; NORMAL-HEARING SUBJECTS; SEMANTIC AMBIGUITY; WORD RECOGNITION; WORKING-MEMORY
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URL: http://discovery.ucl.ac.uk/174602/
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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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