I took the neuro-psych tests 4 years ago when I received my "possible MS" dx. I became so agitated at first that I ran out of the clinic in tears. I pulled myself together and came back to finish the tests. As I recall, I think it took me about 4 or 5 hours as well.

The results for me showed no obvious loss of cognitive function or abilities and the conclusion stated that although signs of active MS were not apparent, they recommended follow-up on the outside chance that the tests represented my status in remission.

I now have my definite MS dx and I'm scheduled for another round of tests right after Labor Day. I'm curious about what changes may show up and I'm glad I have the old results as a baseline.

Good luck with yours, and I hope the results are at least a little bit fascinating. Maybe we can compare notes in a few weeks!