My father in law has moderate dementia. Occasionally, he will try to do something and it is like his brain freezes. For example, he was trying to get a drink. He will lift the glass halfway to his lips and then suddenly stop. You can tell he is struggling with trying to raise the glass. He purses his lips like he is waiting for the glass to rise to his lips. He will stay in this position for a minute or two. Then all of a sudden, it is like it didn't happen, he will continue to raise the glass, take a drink and set it back down. I have noticed this when he is reaching for something, eating, etc. It is like his brain stops communicating with his muscles and he just is frozen there until the command can continue. Anyone know what this is called, or what is causing it? I have asked his doctor and I don't think I am explaining it correctly, because they don't have an answer for me on what to do or what it could be. Or maybe there is nothing we can do and that is why they are not addressing it. Thanks for the help once again!