Meeting Banner
Abstract #4631

Dorsal-ventral stream development for visual word processing

Sunita Gudwani1,2, S. Senthil Senthil Kumaran3, Rajesh Sagar4, Madhuri Behari5, Manju Mehta6, Vaishna Narang7, SN Dwivedi8, and NR Jagannathan3
1Department of ENT, Escorts Heart Institute and Research Center, New Delhi, India, 2Former Department of NMR and MRI Facility, Former ALL INSTITUTE OF MEDICAL SCIENCES, NEW DELHI, India, 3Department of NMR and MRI Facility, All India Institute of Medical Sciences, New Delhi, India, 4Department of Psychiatry, All India Institute of Medical Sciences, New Delhi, India, 5Department of Neurology, Fortis Hospital, New Delhi, India, 6Department of Psychiatry (Psychology Unit), All India Institute of Medical Sciences, New Delhi, India, 7Department of Linguistics, School of Language, Jawahar Lal Nehru University, New Delhi, India, 8Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India

Reading skill is window to the world that we acquire with development. Dual-route model predicts our proficiency of grapheme (text) to phoneme (sound) conversion and semantic decoding (understanding content) for visual words. Fast processing by frontoparietal pathway while meaningful word reading but lexical decision to pseudowords proceeds slowly and exhaustively. Pseudoword successful orthographic mapping recruits ventral and then dorsal areas. This phonological proficiency and exhaustive mental lexicon search during reading is automatized with skill development. Current study evidences recruitment of inferior frontal gyrus (BA44 and 45), insula, thalamus, caudate nucleus and cortical reorganizations of skill developmental with age

This abstract and the presentation materials are available to 2020 meeting attendees and eLibrary customers only; a login is required.

Join Here