“…During the last two decades, these interfaces have been increasingly used in Ambient Assisted Living (AAL) providing services such as interviews [55,117], counseling [57,70], chronic symptoms monitoring [23,56,97,102], medication prescription assistance and adherence [5,22], changing dietary behavior [44], promoting physical activity [51,120], helping cigarette smokers quit [124], speech therapy [131], and prognosis and diagnosis using different techniques [60,88].…”