I am planning a study-project on emotionregulation and the bodily experience (bodily maps of emotions) of drug addicts. I am not sure, if I can mix useres of cannabis and useres of ecstasy for example in my sample. So I'm looking for literature/studies, wheather there are differences between users of stimulant drugs versus useres of sedating drugs regarding emotionregulation and/or the experience of emotions. I'm happy about any hints!