title: Elevated BMI and illicit drug use are associated with decreased ability to inhibit prepotent behaviors.
abstract: The current study examined the impact of BMI and illicit drug use on the ability to inhibit prepotent behaviors. Participants (n=290) completed surveys and behavioral tasks: the Stroop Test and Go/No-Go. After controlling for age and gender, higher BMI was an independent predictor of poorer performance in both the Stroop and Go/No-Go tasks. Illicit drug use was a predictor of poorer Stroop performance only. However, post hoc analyses showed that illicit drug use significantly impacted Go/No-Go performance in normal weight participants. We conclude that elevated BMI and illicit drug use are predictive of poorer performance on executive functioning tasks that require inhibition of a prepotent response.
authors.affiliation: Weight Control and Diabetes Research Center, The Miriam Hospital/Brown Medical School, 196 Richmond Street, Providence, RI 02903, United States. jasonlillis22@gmail.com
authors.forename: Jason
authors.initials: J
authors.lastname: Lillis
authors.forename: Michael E
authors.initials: ME
authors.lastname: Levin
authors.forename: Jodie A
authors.initials: JA
authors.lastname: Trafton
mesh_terms: D000328:Adult; D015992:Body Mass Index; D003072:Cognition Disorders / Q000139:chemically induced; D004192:Discrimination, Psychological; D056344:Executive Function / Q000187:drug effects*; D005260:Female; D006801:Humans; D013287:Illicit Drugs / Q000009:adverse effects*; D007266:Inhibition, Psychological; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D011597:Psychomotor Performance / Q000187:drug effects; D011930:Reaction Time; D057190:Stroop Test; D019966:Substance-Related Disorders / Q000503:physiopathology / Q000523:psychology*
chemical_list: D013287:Illicit Drugs