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Cortical asymmetries at different spatial hierarchies relate to phonological processing ability
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In: PLoS Biol (2022)
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Orthographic Influence on Spoken Word Identification: Behavioral and fMRI Evidence
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Objective Measurement of Cognitive Systems during Effortful Listening
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In: ETSU Faculty Works (2017)
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EEG Study of Effortful Listening
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In: ETSU Faculty Works (2017)
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Aging-Resilient Associations between the Arcuate Fasciculus and Vocabulary Knowledge: Microstructure or Morphology?
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Speech-perception training for older adults with hearing loss impacts word recognition and effort
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The Cingulo-Opercular Network Provides Word-Recognition Benefit
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Pupil size varies with word listening and response selection difficulty in older adults with hearing loss
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Inferior frontal sensitivity to common speech sounds is amplified by increasing word intelligibility
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Abstract:
The left inferior frontal gyrus (LIFG) exhibits increased responsiveness when people listen to words composed of speech sounds that frequently co-occur in the English language (Vaden, Piquado, Hickok, 2011), termed high phonotactic frequency (Vitevitch & Luce, 1998). The current experiment aimed to further characterize the relation of phonotactic frequency to LIFG activity by manipulating word intelligibility in participants of varying age. Thirty six native English speakers, 19–79 years old (mean = 50.5, sd = 21.0) indicated with a button press whether they recognized 120 binaurally presented consonant-vowel-consonant words during a sparse sampling fMRI experiment (TR = 8 sec). Word intelligibility was manipulated by low-pass filtering (cutoff frequencies of 400 Hz, 1000 Hz, 1600 Hz, and 3150 Hz). Group analyses revealed a significant positive correlation between phonotactic frequency and LIFG activity, which was unaffected by age and hearing thresholds. A region of interest analysis revealed that the relation between phonotactic frequency and LIFG activity was significantly strengthened for the most intelligible words (low-pass cutoff at 3150 Hz). These results suggest that the responsiveness of the left inferior frontal cortex to phonotactic frequency reflects the downstream impact of word recognition rather than support of word recognition, at least when there are no speech production demands.
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Keyword:
Article
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3207245 http://www.ncbi.nlm.nih.gov/pubmed/21925521 https://doi.org/10.1016/j.neuropsychologia.2011.09.008
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Age-related relative volume preservation of the dominant hand cortical region
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Speech recognition in younger and older adults: a dependency on low-level auditory cortex
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Age-related relative volume preservation of the dominant hand cortical region
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In: Communication Sciences and Disorders Scholarship (2009)
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Selective Alterations of White Matter Associated with Visuospatial and Sensorimotor Dysfunction in Turner Syndrome
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Anatomical correlates of dyslexia: frontal and cerebellar findings
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