Question: Are there different types of ADHD?
Answer: Yes. Recent research shows that there are two genetically distinct subtypes of ADHD symptoms. One involves the need for higher levels of stimulation for the brain to work well. There is lower level of functioning than normal when reward is delayed. There are problems with being bored in settings that are not particularly stimulating like school classrooms, doing homework, or adult’s typical work setting. Frequently there are problems listening to conversations if the ADHD person is not acutely interested in the topic being discussed (not great for marriages).
The other subtype of ADHD involves deficits in executive functioning. One of the main functions of our highest brain centers is to inhibit our instinctual or emotional reactions. What response or course of action is compatible with our values and long term plans? I have a Dennis the Menace cartoon where he says, “by the time I realize the consequences of my action I’ve already done it!” That’s the problem with impulsivity – act first, think second. The problem with hyperactivity is excessive arousal and “noise” in background brain activity. It is hard to focus on the important things when the brain is being constantly bombarded with the unimportant. This subtype of ADHD results in being easily stressed or having too much on the mind at once.
http://test.askdrjones.com/2007/07/16/vyvanse-new-treatment-for-adhd/
