dr. mitch berger says the challenge to scientists will lead to a better understanding how parts interactionyacht. >> so we know what areas work together in the normal function and then, when there is a disease like alzheimer's disease we can understand which piece of the puz jell not firing. >> to illustrate, dr. berger shows me this picture of a brain showing me which areas are activated when the subject is asked what do you do with a ball. >> you think about hit and open your mouth say hit and hear the word hit it happens in a second or two when the brain is working right wh. not, joel panser can tell but that. >> my wife has no discretion. she can't read a menu or tell one noun from another. >> his wife of 45 years has dementia, taking away her ability to understand. >> she can't find where to put thing asks doesn't know the names of things anymore. >> for panser it's been a heart breaking two and a half years. he understands today's proposal from the president comes too late for his wife but thinks $100 million is a drop in the bucket. >> i don't know anyone. i can't imagine anyone who

dr. mitch berger says mapping could have a huge impact. >> probably the important is better understanding how language is processed and how it's affected. during different diseases such as multiple sclerosis or alzheimer's skis or with trauk brain injury. >> we're making thanksgiving dinner and... i get get the flour sister she said what is that? >> two and a half years later his wife's dementia has taken herway her ability to read a menu. >> she's disappearing in front of me. >> he knows the proposal to spend $100 million hold nose hope for his wife but is he convinced is a small price. >> when we see what's happening with all of our veterans coming back with brain injuries what we're going to pay in the next 10-15 years is beyond calculation. it's going to cost us much, much more. >> he shows how the brain interacts to form the idea of a word and signals it to verbal lies yiz that word. how they're hoping the va help doctors understand traumatic brain injury. >> we'll see you at 6:00 with that story. a department says it's a chance to show solidarity. no word on how much of a pay cut ha