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Simple Search
Hits 1 – 10 of 10
1
Neural Decoding Reveals Concurrent Phonemic and Subphonemic Representations of Speech Across Tasks
Beach, Sara Dawley
;
Ozernov-Palchik, Ola
;
May, Sidney C
...
In: MIT Press (2021)
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2
Disrupted left fusiform response to print in beginning kindergartners is associated with subsequent reading
Centanni, Tracy M
;
Norton, Elizabeth
;
Ozernov-Palchik, Ola
...
In: Elsevier (2019)
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3
Knockdown of Dyslexia-Gene Dcdc2 Interferes with Speech Sound Discrimination in Continuous Streams
Booker, A. B.
;
Chen, F.
;
Sloan, A. M.
...
In: Society for Neuroscience (2016)
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4
The Role of Candidate-Gene CNTNAP2 in Childhood Apraxia of Speech and Specific Language Impairment
Centanni, Tracy M.
;
Sanmann, J. N.
;
Green, J. R.
...
In: Speech Pathology and Audiology Faculty Research and Publications (2015)
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5
Degraded neural and behavioral processing of speech sounds in a rat model of Rett syndrome
Engineer, Crystal T.
;
Rahebi, Kimiya C.
;
Borland, Michael S.
;
Buell, Elizabeth P.
;
Centanni, Tracy M.
;
Fink, Melyssa K.
;
Im, Kwok W.
;
Wilson, Linda G.
;
Kilgard, Michael P.
. - 2015
Abstract:
Individuals with Rett syndrome have greatly impaired speech and language abilities. Auditory brainstem responses to sounds are normal, but cortical responses are highly abnormal. In this study, we used the novel rat Mecp2 knockout model of Rett syndrome to document the neural and behavioral processing of speech sounds. We hypothesized that both speech discrimination ability and the neural response to speech sounds would be impaired in Mecp2 rats. We expected that extensive speech training would improve speech discrimination ability and the cortical response to speech sounds. Our results reveal that speech responses across all four auditory cortex fields of Mecp2 rats were hyperexcitable, responded slower, and were less able to follow rapidly presented sounds. While Mecp2 rats could accurately perform consonant and vowel discrimination tasks in quiet, they were significantly impaired at speech sound discrimination in background noise. Extensive speech training improved discrimination ability. Training shifted cortical responses in both Mecp2 and control rats to favor the onset of speech sounds. While training increased the response to low frequency sounds in control rats, the opposite occurred in Mecp2 rats. Although neural coding and plasticity are abnormal in the rat model of Rett syndrome, extensive therapy appears to be effective. These findings may help to explain some aspects of communication deficits in Rett syndrome and suggest that extensive rehabilitation therapy might prove beneficial.
Keyword:
Article
URL:
https://doi.org/10.1016/j.nbd.2015.08.019
http://www.ncbi.nlm.nih.gov/pubmed/26321676
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4674323/
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6
Speech sound discrimination training improves auditory cortex responses in a rat model of autism
Engineer, Crystal T.
;
Centanni, Tracy M.
;
Im, Kwok W.
. - : Frontiers Media S.A., 2014
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7
Speech Sound Processing Deficits and Training-Induced Neural Plasticity in Rats with Dyslexia Gene Knockdown
Centanni, Tracy M.
;
Chen, Fuyi
;
Booker, Anne M.
. - : Public Library of Science, 2014
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8
Phonological and lexical influences on phonological awareness in children with specific language impairment and dyslexia
Farquharson, Kelly
;
Centanni, Tracy M.
;
Franzluebbers, Chelsea E.
. - : Frontiers Media S.A., 2014
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9
Degraded speech sound processing in a rat model of fragile X syndrome
Engineer, Crystal T.
;
Centanni, Tracy M.
;
Im, Kwok W.
. - 2014
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10
Phonological and lexical influences on phonological awareness in children with specific language impairment and dyslexia
Farquharson, Kelly
;
Centanni, Tracy M.
;
Franzluebbers, Chelsea E.
...
In: Special Education and Communication Disorders Faculty Publications (2014)
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