Abstract #4535

Analysis of colour discrimination ability in Parkinson’s Disease patients using fMRI

Shefali Chaudhary¹, Senthil Kumaran¹, Vinay Goyal², Achal Srivastava², Gaurishanker Kaloiya³, Mani Kalaivani⁴, Rajesh Sagar⁵, and Naranamangalam R Jagannathan¹

¹Department of NMR and MRI Facility, All India Institute of Medical Sciences, New Delhi, India, ²Department of Neurology, All India Institute of Medical Sciences, New Delhi, India, ³Department of NDDTC and Psychiatry, All India Institute of Medical Sciences, New Delhi, India, ⁴Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India, ⁵Department of Psychiatry, All India Institute of Medical Sciences, New Delhi, India

Ocular and visual disorders has been reported in Parkinson’s Disease (PD). BOLD activation was mapped during visual color hue discrimination stimuli in PD (n=10, mean age=59 years, SD=6.8) and healthy control (HC) (n=6, mean age=53.67 years, SD=2.6) participants at 3 T MR scanner. Comparison between the two groups revealed lower activation in secondary visual areas (BA 18/19) and fusiform gyrus (BA 37), more dependence on memory areas and increased cluster size in PD (in comparison with HC) suggesting impairment in colour hue processing.

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.