image is one the most common form of diagnosis in alzhemier. Other than this there are some physical test ( Timed Up and Go Test (TUG)) and on the way of how a person walk (gait analysis ) one can analysis alzheimer. 

Also based upon MMSE

It can be done using DAN sequencing and identification of the protein combinations responsible for the disorder. 

Dear Salil Batra,

Look the link

http://www.ugr.es/~javierrp/pdf_papers/ESWA2012a.pdf

Regards, Shafagat

A few works related to DNA sequencing and computerized recognition are as follws:

http://www.genomebiology.com/content/pdf/gb-2013-14-7-r78.pdf

https://www.ndsu.edu/pubweb/~mcclean/plsc431/students99/rothe.htm

http://www.hindawi.com/journals/cmmm/2014/862307/

You can use the following xls file from OASIS database. OASIS is made available by the Washington University Alzheimer’s Disease Research Center, Dr. Randy Buckner at the Howard Hughes Medical Institute (HHMI) at Harvard University, the Neuroinformatics Research Group (NRG) at Washington University School of Medicine, and the Biomedical Informatics Research Network (BIRN).

you can find in these two file some criteria for exploring dementia like:

• The Clinical Dementia Rating (CDR)
• Mini-Mental State Examination (MMSE) 

thanks

http://www.oasis-brains.org/

http://de.mathworks.com/matlabcentral/mlc-downloads/downloads/submissions/27121/versions/1/previews/struct_array_conversion/html/struct2struct_example.html#3

Thanks for your kind responses.