Selective Reminding Test with delay Wechsler Memory Scale (WMS): Visual Reproduction - with delay, % savings from immed to delay Controlled Oral Word Association Test Trails B Digit symbol subtest of Wechsler Adult Intelligence Scale (WAIS)-III Continuous Performance Test iii. CGI for severity of Cognitive deficit greater than 2 (absolute score on a 7-point scale:1=no deficit to 7=severe deficit). iv. Clinical Dementia Rating (CDR) = 0 or 0.5