“…Following Pettigrew and Miller's [68] original study on BD, other clinical psychiatric conditions have been examined including schizophrenia and major depression [39,53], autism spectrum conditions [4,26,42,[71][72][73], attention deficit hyperactivity disorder (e.g., [3,6]), and generalized social anxiety disorder [5]. Although some researchers (e.g., [82]) have attempted to use the same testing protocol as that of Pettigrew and Miller [68], so that data may be directly compared between clinical studies, other researchers have employed different test protocols (e.g., shorter viewing durations, different stimulus characteristics, different response options), making comparisons difficult.…”