My father had symptoms like stroke 2.5 years back. Post doctor consultation, got his MRI and CT test done. As per the doctor no clotting were found and hence it was expected to get recovered in 6 months to one year time. Adversely to this expectation, his mental and physical activity has started going down and there is drastic memory loss. I can sense problem here and planning to visit NIMHANS bangalore. But to save time want to have relevant tests done again. Request to advise names of tests. Thanks