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Lesion-site-dependent responses to therapy after aphasic stroke
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Less is more: neural mechanisms underlying anomia treatment in chronic aphasic patients.
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Auditory training changes temporal lobe connectivity in ‘Wernicke’s aphasia’: a randomised trial
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Four functionally distinct regions in the left supramarginal gyrus support word processing
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Why the left posterior inferior temporal lobe is needed for word finding
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In: BRAIN , 139 pp. 2823-2826. (2016) (2016)
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Four Functionally Distinct Regions in the Left Supramarginal Gyrus Support Word Processing
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In: CEREBRAL CORTEX , 26 (11) pp. 4212-4226. (2016) (2016)
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Comparing language outcomes in monolingual and bilingual stroke patients.
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In: Brain , 138 (Pt 4) 1070 - 1083. (2015) (2015)
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A Trade-Off between Somatosensory and Auditory Related Brain Activity during Object Naming But Not Reading.
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In: J Neurosci , 35 (11) 4751 - 4759. (2015) (2015)
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Plasticity of white matter connectivity in phonetics experts
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In: Brain Structure and Function (2015) (In press). (2015)
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Sensory-to-motor integration during auditory repetition: a combined fMRI and lesion study.
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In: Front Hum Neurosci , 8 , Article 24 . (2014) (2014)
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Inter- and intrahemispheric connectivity differences when reading Japanese Kanji and Hiragana.
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In: Cereb Cortex , 24 (6) pp. 1601-1608. (2014) (2014)
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The importance of premotor cortex for supporting speech production after left capsular-putaminal damage.
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In: J Neurosci , 34 (43) 14338 - 14348. (2014) (2014)
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Dissecting the functional anatomy of auditory word repetition.
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In: Front Hum Neurosci , 8 , Article 246 . (2014) (2014)
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Perturbation of the left inferior frontal gyrus triggers adaptive plasticity in the right homologous area during speech production.
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In: Proc Natl Acad Sci U S A , 110 (41) 16402 - 16407. (2013) (2013)
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Functionally distinct contributions of the anterior and posterior putamen during sublexical and lexical reading.
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In: Front Hum Neurosci , 7 , Article 787 . (2013) (2013)
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Abstract:
Previous studies have investigated orthographic-to-phonological mapping during reading by comparing brain activation for (1) reading words to object naming, or (2) reading pseudowords (e.g., "phume") to words (e.g., "plume"). Here we combined both approaches to provide new insights into the underlying neural mechanisms. In fMRI data from 25 healthy adult readers, we first identified activation that was greater for reading words and pseudowords relative to picture and color naming. The most significant effect was observed in the left putamen, extending to both anterior and posterior borders. Second, consistent with previous studies, we show that both the anterior and posterior putamen are involved in articulating speech with greater activation during our overt speech production tasks (reading, repetition, object naming, and color naming) than silent one-back-matching on the same stimuli. Third, we compared putamen activation for words versus pseudowords during overt reading and auditory repetition. This revealed that the anterior putamen was most activated by reading pseudowords, whereas the posterior putamen was most activated by words irrespective of whether the task was reading words or auditory word repetition. The pseudoword effect in the anterior putamen is consistent with prior studies that associated this region with the initiation of novel sequences of movements. In contrast, the heightened word response in the posterior putamen is consistent with other studies that associated this region with "memory guided movement." Our results illustrate how the functional dissociation between the anterior and posterior putamen supports sublexical and lexical processing during reading.
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Keyword:
fMRI; orthography; phonology; putamen; reading; word production
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URL: http://discovery.ucl.ac.uk/1421826/1/fnhum-07-00787.pdf http://discovery.ucl.ac.uk/1421826/
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Predicting outcome and recovery after stroke with lesions extracted from MRI images
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In: NEUROIMAGE-CLINICAL , 2 pp. 424-433. (2013) (2013)
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Lesions impairing regular versus irregular past tense production
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In: NeuroImage: Clinical , 3 438 - 449. (2013) (2013)
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Auditory-motor interactions for the production of speech in native and non-native speech
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In: The Journal of Neuroscience , 33 (6) pp. 2376-2387. (2013) (2013)
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Reading without the left ventral occipito-temporal cortex.
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In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) ; Web of Science (Lite) (http://apps.webofknowledge.com/summary.do) ; Scopus (http://www.scopus.com/home.url) ; CrossRef (2012)
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