Using factor analysis and structural equation modelling on self-reported legal, illegal and psychotropic drug use and four creativity measures (controlling for openness to experience), the study found that openness was the strongest predictor of creativity, although self-reported drug use produced small but significant incremental effects. The authors interpret these residual effects as likely reflecting expectancy/placebo influences rather than clear pharmacological enhancement.
- Published
- Journal
- Imagination Cognition and Personality
- Authors
- Humphrey, D. E., Kaufman, J. C., McKay, A. S., Primi, R.