Literacy
Research in our laboratory is aimed at studying how the unique properties of Indian languages and writing systems (e.g., transparent spelling-sound mapping and non-linear and complex scripts), as well as the socio-cultural profiles (e.g., bilingualism, multilingualism and biliteracy) shape the neurocognitive and behavioral bases of reading in children and adults.
Some research projects in the lab investigating literacy are:
In India, we live in an environment where individuals use multiple languages unconsciously. Yet little is known about how multiple languages are learnt, what determines reading abilities and disorders of reading like dyslexia. Our laboratory uses a combination of behavioral techniques and functional and structural neuroimaging to investigate these features.
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Development of screening tools in indian languages to assess reading disability
Despite the high incidence of reading disability in Indian children, there is a lack of tests to assess reading problems standardized for our population. We have developed a screening tool (iLAB) for testing reading skills of children of grades 1-5 in English, Hindi, Marathi and Kannada standardized from about 4000 children.
Publications
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Visuospatial complexity modulates reading in the brain, Chaitra Rao and Nandini C. Singh, Brain and Language(2015).
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The influence of orthographic depth on reading networks in simultaneous biliterate children, S. Cherodath , N.C. Singh, Brain and Language, doi:10.1016/j.bandl.2015.02.001 (2015).
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Reading in Devanagari: Insights from functional neuroimaging, Nandini Chatterjee Singh and Chaitra Rao, Indian Journal of Radiology and Imaging. DOI:10.4103/0971-3026.130691 (2014).
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The developing biliterate brain, Nandini Chatterjee Singh, International Society for the Study of Behavioural Development Bulletin 1(61), 22 - 26 (2012)
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The case of the neglected alphasyllabary – Orthographic processing in Devanagari, Peer Commentary in Brain and Behavioral Sciences, Volume 35, 5, 302-303, (2012).
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Cortical Network for reading linear words in Devanagari (Reading and writing ; and interdisciplinary Journal (special issue in alphasyllabary) , Tanusree Das, Raju S. Bapi, Prakash Padakannaya and Nandini C. Singh (2011).
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Neuroimaging reveals dual routes to reading in simultaneous proficient readers of two orthographies,Das T, Padakannaya P, Pugh KR, Singh NC. Neuroimage. 15;54(2):1476-87 (2011).
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Reading different orthographies: An fMRI study of phrase reading in Hindi-English bilinguals, U. Kumar, T. Das, R. S. Bapi, P. Padakannaya, R. M. Joshi and N. C. Singh, Reading and Writing, 23: 239-255 (2010).
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Neural representation of an alphasyllabary-the story of Devanagari,T.Das,U.Kumar,R.S.Bapi,P.Padakannaya,N. C. Singh,(Current Science, Vol.97,No.7,2009).
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Dyslexia, orthography, and brain, P. Padakannaya, N.B. Ramachandra and N.C. Singh, Current Science, 1381 (2008).