Mouthful. The inability to inhibit a prepotent behavior is one of the deficits in executive function that occur in many patients with adhd. A child with this needs behavioral therapy along with medication. His medicine is like " eyeglasses for his brain." it helps him focus & think about the consequences of his actions, but it doesn't teach him what is okay to do. " pills don't teach skills." therapists do.
Not necessarily. Irresistable impulse may be an impulse not resisted. There are degrees of both volition and inhibition they are not equal or the same.