The backward masking red light effect and schizotypy: the influence of sex.

Previous research has shown a unique effect of red light on visual processing related to both schizophrenia and positive schizotypy. The current study examined whether this effect is influenced by sex in a more broadly-defined schizotypy sample. A location backward masking (BM) task with red, green, and gray backgrounds was administered to 34 undergraduate students (59% female) with a high score on the Schizotypal Personality Questionnaire (SPQ) and 38 students (50% female) with a low score.