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Therapy for Auditory Processing Impairment in Aphasia: An evaluation of two approaches
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Therapy for auditory processing impairment in aphasia: An evaluation of two approaches
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In: APHASIOLOGY , 28 (12) 1481 - 1505. (2014) (2014)
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Speech Perception and Production by Sequential Bilingual Children: A Longitudinal Study of Voice Onset Time Acquisition.
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In: Child Development , 85 (5) pp. 1965-1980. (2014) (2014)
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Speech perception and production by sequential bilingual children: a longitudinal study of voice onset time acquisition.
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In: Child Dev , 85 (5) 1965 - 1980. (2014) (2014)
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Lexico-semantic and acoustic-phonetic processes in the perception of noise-vocoded speech: implications for cochlear implantation.
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In: Front Syst Neurosci , 8 , Article 18. (2014) (2014)
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Processing of phonological variation in children with hearing loss: compensation for English place assimilation in connected speech.
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In: J Speech Lang Hear Res , 57 (3) 1127 - 1134. (2014) (2014)
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Exploring the roles of spectral detail and intonation contour in speech intelligibility: an FMRI study.
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In: J Cogn Neurosci , 26 (8) 1748 - 1763. (2014) (2014)
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Abstract:
The melodic contour of speech forms an important perceptual aspect of tonal and nontonal languages and an important limiting factor on the intelligibility of speech heard through a cochlear implant. Previous work exploring the neural correlates of speech comprehension identified a left-dominant pathway in the temporal lobes supporting the extraction of an intelligible linguistic message, whereas the right anterior temporal lobe showed an overall preference for signals clearly conveying dynamic pitch information [Johnsrude, I. S., Penhune, V. B., & Zatorre, R. J. Functional specificity in the right human auditory cortex for perceiving pitch direction. Brain, 123, 155-163, 2000; Scott, S. K., Blank, C. C., Rosen, S., & Wise, R. J. Identification of a pathway for intelligible speech in the left temporal lobe. Brain, 123, 2400-2406, 2000]. The current study combined modulations of overall intelligibility (through vocoding and spectral inversion) with a manipulation of pitch contour (normal vs. falling) to investigate the processing of spoken sentences in functional MRI. Our overall findings replicate and extend those of Scott et al. [Scott, S. K., Blank, C. C., Rosen, S., & Wise, R. J. Identification of a pathway for intelligible speech in the left temporal lobe. Brain, 123, 2400-2406, 2000], where greater sentence intelligibility was predominately associated with increased activity in the left STS, and the greatest response to normal sentence melody was found in right superior temporal gyrus. These data suggest a spatial distinction between brain areas associated with intelligibility and those involved in the processing of dynamic pitch information in speech. By including a set of complexity-matched unintelligible conditions created by spectral inversion, this is additionally the first study reporting a fully factorial exploration of spectrotemporal complexity and spectral inversion as they relate to the neural processing of speech intelligibility. Perhaps surprisingly, there was little evidence for an interaction between the two factors-we discuss the implications for the processing of sound and speech in the dorsolateral temporal lobes.
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Keyword:
Adolescent; Adult; Brain Mapping; Humans; Magnetic Resonance Imaging; Middle Aged; Pitch Perception; Speech Intelligibility; Speech Perception; Temporal Lobe; Young Adult
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URL: http://discovery.ucl.ac.uk/1423322/
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The role of auditory and cognitive factors in understanding speech in noise by normal-hearing older listeners.
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In: Front Aging Neurosci , 6 , Article 307. (2014) (2014)
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The development of phonemic categorization by sequential bilingual children: a longitudinal study of VOT acquisition.
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In: Child Development , 85 (15) pp. 1965-1980. (2014) (2014)
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The Pathways for Intelligible Speech: Multivariate and Univariate Perspectives
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In: ISSN: 1047-3211 ; Cerebral Cortex, Vol. 24, No 9 (2014) pp. 2350-61 (2014)
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Speech perception and production by sequential bilingual children: a longitudinal study of VOT acquisition
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