work at the start of the week, and tended to worsen with increased frequency of use. It is of note that despite the finding of reduced alertness in the smokers, which was assessed by self-report, no changes in anxiety ratings were detected between the groups. The finding of reduced alertness, while not a direct measure of affective processing, raises the question of how these individuals might differ from non –marijuana smokers on tasks related to affective discrimination or processing, given the importance of being able to visually attend to stimuli in order to process information appropriately.
