Abstract #4640

Structural and Functional changes in ventral and dorsal stream during phonological and haptic language in early and late blind

A Ankeeta¹, s Senthil Kumaran¹, and Rohit Saxena²

¹NMR and MRI facility, All India Institute of Medical Sciences, New Delhi, India, ²RP centre, Opthalmology, All India Institute of Medical Sciences, New Delhi, India

Anatomical and functional MRI data for Braille and phonological noun pair assessment test was acquired in 40 early blind (EB), forty late blind (LB) subjects and thirty sighted controls (SC) in two age groups 6-12 years and 13-19 years (all right-handed). Visual impairment induces structural and functional modification in the visual cortex. Late blind subjects exhibited differences in the V1 13-19 years age range, but not in the 6-12 years age group. Duration of blindness and education influence the extent of plasticity of the V1 and language network.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.