Cigarette smoke adheres to dust and films on surfaces
Social Impairments: Not engaging in important work, social activities, hobbies, or recreational activities due to cannabis use
We included studies in this meta-analysis that: (1) assessed gray matter using structural MRI, (2) reported a set of coordinates (i.e., foci) from a between-subjects contrast comparing smokers to matched nonsmoking participants, (3) reported coordinates in a defined stereotaxic space (i.e., Talairach or Montreal Neurological Institute [MNI]), (4) performed a whole-brain analysis, and (5) provided sufficient information regarding characterization of smoking behaviors (e.g., pack-years, Fagerstrm Test of Nicotine Dependence [FTND] scores, years smoking, number of cigarettes smoked per day), basic demographics of the study samples (e.g., age, sex, N ), and data analysis strategies (e.g., smoothing parameters, statistical thresholds)
WHO Report on the Global Tobacco Epidemic, 2008: The MPOWER Package (World Health Organization, 2008)