John: Thank you for your comments. I suspect that Parkinson's is also affecting me in ways other than movement disorder and facial masking that I am not aware of. I will probably do the testing, but I'm still in the preliminary stage of making the arrangements. My employment involves mostly routine methods and procedures, but I have a lot of freedom to organize my own work day schedule. I am having more difficulty focusing my attention on task, shifting my attention from one task to another, recalling info, my spoken vocabulary and probably my written composition have declined. It is difficult to measure my output, because I'm not producing a physical product or making a sale. The main tool I use is a PC connected to my organization's information system, but a lot of my work goes on in my head. That's becoming an issue for me at work. The physical symptoms of Parkinson's can be seen. But how do you measure when you suspect that mental processing is slowing down, vocabulary may be regressing, or other "higher level" functions may be impaired? I would be interested in hearing from others on the list. Putting it directly, did PD cause people to be "dumber" on the job or elsewhere? My neuro tells me other patients have told him this, but he hasn't seen hard proof. How have others measured this? Is it the natural course of PD that you start "feeling" that you are getting dumber, not smarter or maintaining your cognitive abilities, even if the medications improve your physical functioning. Thanks, Charley