I know this thread is a little old, but I'm going to post to try to revive it. My 5 y.o. daughter was just diagnosed with SPD, sensory seeker. Potty training her has been and continues to be a nightmare. We have tried EVERYTHING!! Her success never lasts more than 2 weeks. I think she misses the wet feeling after a couple of weeks of using the toilet and just throws in the towel. She will be starting OT in a couple of weeks, and potty training is #1 on our priority list. We were afraid to put her back in Pull Ups because we felt like we would sabotage her success, but after 18 months of cleaning up pee, we just couldn't handle the stress and put her back in Pull Ups. We saw every specialist known to man, and no one could explain why this was happening. Then one day her speech therapist made a passing comment about reading the book The Out of Sync Child. Wow! I was stunned when I read it and had her evaluated within two weeks. We've tried timed voiding, a potty watch, rewards of every kind (candy, stickers, toys, computer games, movies), letting her decide completely on her own, naked bottom method--all of them worked, but only for about 2 weeks. I've recently bought the book Toilet Training for Individuals with Autism or other Developmental Issues by Maria Wheeler. Has anyone attempted her method?