Anthony William (Medical Medium) leaves out ADD from his discussion. Does that have a different cause, or is there some other reason, such as being falsely interpreted as a separate syndrome?

That is a related problem but is, in a sense, on a spectrum as well. It has been differentiated by human science as a separate disorder because there appear to be clear-cut behavioral traits defining the two populations of ADD and ADHD as well as differing responses to pharmacological agents to control the symptoms of hyperactivity but, in effect, these are simply on a spectrum of increasing damage resulting from the same process of manipulation by the extraterrestrials.