kitty dukakis why does she need repeated treatments. >> the nature of depression it is usually a relapsingss. >> common. >> that is very common. >> last spring, dukakis decided to stop getting ect. when we first met with her in july she hadn't had her regular treatments for months. her depression had returned. she had difficulty answering our questions. >> every doctor i talked to kred its you and your, willingness to talk openly about this. >> you can -- you can explain this better than i can. i'm having trouble. speaking. right now. >> can you till us your full name and date of birth, please, kitty. >> excuse me. >> tell us your full name and date of birth please. katherine kitty dukakis. >> realizing she needed help she resumed getting ect and allowed us to film it. the whole visit it lasted an hour. dukakis was said kated. electricity was administered to her brain for a few seconds. the seizure lasted about a minute. the only sign of it was some slight trembling in her feet. >> when we met her again two months later we could see the difference. >> the last time we saw you you weren't f