- Individuals with schizophrenia or schizoaffective disorders have a high prevalence of cannabis use. Understanding some of the environmental factors that maintain cannabis use, such as socially triggered cravings, is a critical step in improving treatment for cannabis dependence. In recent years, virtual reality has been studied to determine whether it can be used to induce craving by using life-like cue settings. Researchers are interested in using virtual reality systems to study cannabis cravings in individuals with schizophrenia.