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The perception of prosody and associated auditory cues in early-implanted children: the role of auditory working memory and musical activities.
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In: Int J Audiol , 53 (3) 182 - 191. (2014) (2014)
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Adaptation to spectrally-rotated speech.
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In: J Acoust Soc Am , 134 (2) 1369 - 1377. (2013) (2013)
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Identification of vowel length, word stress, and compound words and phrases by postlingually deafened cochlear implant listeners.
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In: J Am Acad Audiol , 24 (9) 879 - 890. (2013) (2013)
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Speech comprehension aided by multiple modalities: behavioural and neural interactions.
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In: Neuropsychologia , 50 (5) 762 - 776. (2012) (2012)
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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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Resistance to learning binaurally mismatched frequency-to-place maps: Implications for bilateral stimulation with cochlear implants
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In: Journal of the Acoustical Society of America , 127 (3) 1645 - 1660. (2010) (2010)
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Acquisition of focus by normal hearing and Cochlear Implanted children: The role of musical experience
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In: In: Hasegawa-Johnson, M, (ed.) Speech Prosody 2010, Fifth International Conference, Chicago, IL, USA, May 10-14, 2010. SProSIG (2010) (2010)
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Acoustic cues to tonal contrasts in Mandarin: Implications for cochlear implants
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In: Journal of the Acoustical Society of America , 123 (5) 2815 - 2824. (2008) (2008)
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Talker intelligibility differences in cochlear implant listeners
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In: J ACOUST SOC AM , 121 (6) EL223 - EL229. (2007) (2007)
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Adaptation to distorted frequency-to-place maps: implications of simulations in normal listeners for cochlear implants and electroacoustic stimulation.
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In: Audiol Neurootol , 11 Sup pp. 21-26. (2006) (2006)
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The use of visual cues in the perception of non-native consonant contrasts
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In: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA , 119 (3) 1740 - 1751. (2006) (2006)
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Perceptual adaptation by normally hearing listeners to a simulated "hole" in hearing
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In: J ACOUST SOC AM , 120 (6) 4019 - 4030. (2006) (2006)
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Speech Perception and Auditory Impairment: The Roles of Temporal and Spectral Information
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In: In: Greenberg, S and Ainsworth, WA, (eds.) Listening to Speech: An Auditory Perspective. (pp. 315-329). Lawrence Earlbaum Associates: Mahwah, New Jersey. (2006) (2006)
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perception and production of consonants by Japanese learners of English q
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In: http://www.phon.ucl.ac.uk/home/andyf/science.pdf (2005)
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Effect of audiovisual perceptual perception and production of training on the consonants by Japanese learners of English
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In: SPEECH COMMUNICATION , 47 (3) 360 - 378. (2005) (2005)
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Cognitive Science 27 (2003) 843–873 A construction based analysis of child directed speech
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In: http://www.cogsci.rpi.edu/cogworks/CSJarchive/2003v27/i06/p0843p0873/00000137.PDF (2003)
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The Role of Visual Cues in L2 Consonant Perception
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In: Presented at: Proceedings of the 15th International Congress of Phonetic Sciences. (2003) (2003)
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Evaluation of a multilingual synthetic talking face as a communication aid for the hearing impaired
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In: In: Proceedings of the 15th International Congress of Phonetic Sciences: 15th ICPhS, Barcelona 3-9 August 2003. (pp. 131 - 134). Universitat Autònoma de Barcelona / International Phonetic Association: Barcelona, Spain. (2003) (2003)
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The Neural Basis of Cross Modal Enhancement in Speech Perception: A Pet Study
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In: Presented at: UNSPECIFIED. (2002) (2002)
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