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Schizotypy is a multidimensional personality construct that is characterized by perceptual abnormalities, social withdrawal, mild suspiciousness, and odd thinking patterns. This study examined the relationship between four dimensions of self-reported schizotypy and substance use involving nicotine, alcohol, and cannabis, in undergraduate students. Results showed that higher levels of disorganized schizotypy, or odd thinking and behavior, were associated with greater indices of use of all three substances. Furthermore, higher cognitive-perceptual schizotypy was selectively associated with cannabis use. Results confirm findings of recent research that has discovered associations among schizotypy and substance use, highlighting links between behavioral traits and use of nicotine, alcohol, and cannabis. This study is one of the first to examine a wide range of schizotypy domains, and to show selective effects of the disorganized domain of schizotypy.


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Esterberg, M. L., Goulding, S. M., McClure-Tone, E. B., & Compton, M. T. (2009). Schizotypy and Nicotine, Alcohol, and Cannabis Use in a Non-Psychiatric Sample. Addictive Behaviors, 34(4), 374-379. DOI: 10.1016/j.addbeh.2008.11.007

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