in a case-control design (Gur et al., Schiz Res 2015). More recent work demonstrates that these deficits are present as early as the first-episode and are also observed in youths at clinical high risk (CHR) (Addington et al., 2006; van Rijn et al., 2011). In a recent longitudinal study of CHR youths, the emotion identification test was the single best predictor of transition to psychosis (Corcoran et al., in press).
