Alzheimer's Disease Unlocked?

Experimental brain treatment shows promise restoring memories.
2:10 | 03/19/12

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Transcript for Alzheimer's Disease Unlocked?
What could be a medical breakthrough for so many people hoping to make their memories last longer even after a loved one is diagnosed with alzheimer's. ABC's -- Davis with the technique sparking the mind. It's long been the holy Grail for doctors treating alzheimer's disease. Find a way to stop the rapid mental decline that he is the hallmark of this debilitating disease. Now -- new clinical trial could just prove that possible. Using a novel approach that could -- memory circuits in the brain. It's called deep brain stimulation and it's already shown promise in a few Canadian patients with early alzheimer's right now -- Four years ago Robert Linton had two electrodes implanted in the memory area of his brain. Every day since a battery implanted in his chest has -- to spring more than 100 electrical impulses second. That treatment has put the brakes on Roberts alzheimer's allowing him to lead a normal life -- driving doing crossword puzzles exercising. And perhaps most importantly. Remembering. If I can't remember something. If I just Ponce. For 12 or three seconds. The pops and. His doctor says Roberts brain scans show that difference although the lights are out here there is someone home and were able to turn -- brain back on. There are circuits in the brain that are shut down in alzheimer's disease can re re -- can re activate these circuits. And will that lead to an improvement all questions that can only be answered by testing more patience. But for now Robert like -- have reason to hope -- the diagnosis of all time and you don't know what the future's going to be. And now I think -- -- we have -- future. So great to see Robert -- -- getting more quality time together than they thought they would facing alzheimer's but I'm curious is there hope for others moving forward there is additional -- the FDA has now approved a larger study that's gonna take place at Johns Hopkins. Fifty more people in this deep brain stimulation we've seen it used before in what depression parkinson's exactly we've seen it work and be effective in those cases we know that -- -- it just could be an effective treatment now for alzheimer's disease all right great -- Lindsay thank you.

This transcript has been automatically generated and may not be 100% accurate.

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