Donna Henderson, a licensed psychologist working with autistic people who have been misunderstood their whole lives, must create an equal and respectful relationship to quell their strong drive for autonomy, an otherwise overwhelming need that leads to exhausting meltdowns and obsessive behavior. “PDA is so much more than just avoiding demands. So let’s start by renaming it. So I love Tomlin Wilding’s reimagination of PDA as pervasive drive for autonomy. Because that’s really what this is. These people are…