If your decrease in memory is recent it might not help you meet a Listed Impairment because you need to prove the issue existed at the time of your Alleged Onset Date.

BUT, if you are able to document that there is a serious problem with your memory (or other cognitive issues) it would clear up the issue of your credibility! And even more importantly, with a correct diagnosis, your doctor might be able to prescribe medication and or therapy to stop the decline of your memory in the future.

Have you had a CT scan or MRI? Have you undergone a neurological exam?

http://www.healthcommunities.com/mem...iagnosis.shtml

"Diagnosis also may involve a more complicated mental status exam performed by a neuropsychologist (psychologist who specializes in the study of brain behavior relationships). These exams are standardized—they are administered to each patient the same way so that comparisons can be made among a larger group of people. For example, a 74-year-old patient's results can be compared to those of other 74-year-olds with similar educational backgrounds. This helps the physician determine if the degree of cognitive decline is within normal limits. Other types of psychological testing can provide information about changes in personality, mood, language, attention, and perception."