ˌeɪdˈiː ɪz tɹˈɪɡɚd baɪ ˈiːðɚ nˈɑːkʃəs ɔːɹ nˈɑːnnˈɑːkʃəs stˈɪmjʊlˌaɪ, ɹɪzˈʌltɪŋ ɪn sˌɪmpəθˈɛɾɪk stˌɪmjʊlˈeɪʃən ænd hˌaɪpɚɹæktˈɪvᵻɾi.
AD is triggered by either noxious or non-noxious stimuli, resulting in sympathetic stimulation and hyperactivity.