R.M.
My son had a more directed version of this therapy after his severe traumatic brain injury (TBI). Rather than just introducing the low electric pulses thru an ear clip, his practitioner did a detailed electrical "map" of his brain and brain waves to determine where his brain was misfiring due to the injury.
My (non-professional, but researched) understanding of emerging science suggests that the same kind of misfiring (too fast, too slow, not synchronized) that can result from physical injury is present in a number of conditions - PTSD, depression, ADHD, etc. and placing electrodes over those part of the brain that are misfiring and "training" or "retraining" the brain to pulse in the right way by introducing the right frequency can result in demonstrable improvement.
There is only so much this treatment can do (at least so far) and while my son is still permanently disabled, this therapy sure seemed to help him tremendously. The part of the brain that controls the month and tongue were severely damaged in his injury. When he began this therapy he could only say one or two words. After a couple of treatments his speech therapist could see a difference, even though she didn't know he was getting any treatment outside of her therapy. In fact she called me completely baffled by his sudden improvement.
His practitioner (she has a Phd. in health psychology) has done NIH funded research and has done a lot of research and treatment of troops coming home with TBI. Her website is very helpful: http://www.brainwellnessandbiofeedback.com/index-neurofee...
PS
I hate to hear when someone is chided for giving meds to a kid who needs it for ADHD and the like - no one would tell you he's "too young" to take meds for asthma, a cold or an ear infection. The heartbreak, determination and vigilance it takes to care for a child with issues is burden enough without the judgement of others who've been blessed with "easy" children and haven't got a clue. Hang in there.