For children with autism, it's a confusing world. Trying to communicate with these kids can be a struggle as they often seem to be locked inside their own impenetrable worlds.

Therapists who work with autistic children are constantly on the lookout for ways to get them to engage with others.  

Now, researchers at York University in Toronto are carrying out the first study of a play-based therapy program that has had some remarkable success in drawing some autistic children out of their solitary worlds and into a shared one.

In this video, the CBC's Ioanna Roumeliotis offers a moving look inside floortime therapy ... and how it's given one Ontario family new hope for their son.