Modification of performance on the Span of Apprehension Task in a group of young people with early onset psychosis.

The aim of the study was to examine the effect of contingent monetary reinforcement and enhanced instructions on Span of Apprehension (SPAN) performance in a group of young people with early onset psychosis. Twenty-five participants (mean age 16.7) received a 3- and 12-letter version of the SPAN task six times: baseline, three x intervention, post-test, and 10-day follow-up.