For the past six months, my husband has experienced quite prolonged episodes of freezing, which we feel are often brought on by anxiety, particularly if he feels pressured to be able to move well for a certain time (to take my son to the bus stop, for instance), or in crowd situations. He has been given anti-anxiety medication to help but didn't care for side effects, and discontinued. His neurologist suggested taking an extra 1/2 Sinemet as needed (up to 3 halfs a day), which often gives him the boost he needs to get going again. When we are out somewhere, or even here at home, and he is "frozen" in place, we have learned to put a foot in front of his, which seems odd to someone watching who has no clue. But for some reason, by seeing an obstacle in front of his foot, his brain somehow signals his foot to lift over it. We will repeat this for several repetitions and soon he can walk again. It also works if we place several items in his way, forming a line of sorts of obstacles to step over. It sounds strange, but it works. Encourage your wife to use a walker, also, one with good support to offset falls. Pamme