Observations on the effects of four weeks of heavy marihuana smoking on group interaction and individual behavior

摘要: Abstract The clinical effects of intensive marihuana smoking on physically and mentally healthy male volunteers were studied in group sessions during a research project. study was divided into three periods: presmoking, “wash-out” (4 weeks); postsmoking, weeks). Subjects exhibited mild referentiality because confinement observation even before began. With light smoking, subjects reported pleasurable enhanced sensitivity. cohesiveness increased. heavy became apathetic withdrawn markedly referential. This disappeared completely when ceased. felt to be clinically hyperirritable the first week withdrawal. after withdrawal week. Because conflicting opinions about abstinence chronic use, it is that improved design mood rating scales needed.