519. Cognitive Control in Early Psychosis: Behavioral and Neural Correlates of the Translational Orientation Pattern Expectancy Task (TOPX)

The translational orientation pattern expectancy task (TOPX) is an AX-expectancy task variant designed to investigate proactive and reactive cognitive control in individuals with early psychosis and healthy controls. Participants must identify a target sequence of gabor stimuli (known as AX) among non-target sequences (AY, BX, and BY). BX trials require greater proactive control, whereas AY trials require greater reactive control.