2014
DOI: 10.2174/13816128113199990428
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Effects of Cannabis on Impulsivity: A Systematic Review of Neuroimaging Findings

Abstract: We conducted a systematic review to assess the evidence for specific effects of cannabis on impulsivity, disinhibition and motor control. The review had a specific focus on neuroimaging findings associated with acute and chronic use of the drug and covers literature published up until May 2012. Seventeen studies were identified, of which 13 met the inclusion criteria; three studies investigated acute effects of cannabis (1 fMRI, 2 PET), while six studies investigated non-acute functional effects (4 fMRI, 2 PET… Show more

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Cited by 77 publications
(74 citation statements)
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“…Second, the relationship between impulsivity and outcome is complicated by the “chicken or the egg phenomenon.” Pretreatment neurobehavioral trait impulsivity precedes cannabis use, and cannabis use exacerbates impulsivity. It is unknown how this entwining of cannabis use and impulsivity affects treatment outcomes, especially in light of several studies linking impulsivity with cannabis use (Churchwell, Lopez-Larson, & Yurgelun-Todd, 2010; Dougherty et al, 2013; Wrege et al, 2014), yet others failing to find differences in impulsivity between adult users and non-users after acute cannabis use (Johnson et al, 2010; McDonald, Schleifer, Richards, & de Wit, 2003; Vadhan et al, 2007). …”
Section: Discussionmentioning
confidence: 99%
“…Second, the relationship between impulsivity and outcome is complicated by the “chicken or the egg phenomenon.” Pretreatment neurobehavioral trait impulsivity precedes cannabis use, and cannabis use exacerbates impulsivity. It is unknown how this entwining of cannabis use and impulsivity affects treatment outcomes, especially in light of several studies linking impulsivity with cannabis use (Churchwell, Lopez-Larson, & Yurgelun-Todd, 2010; Dougherty et al, 2013; Wrege et al, 2014), yet others failing to find differences in impulsivity between adult users and non-users after acute cannabis use (Johnson et al, 2010; McDonald, Schleifer, Richards, & de Wit, 2003; Vadhan et al, 2007). …”
Section: Discussionmentioning
confidence: 99%
“…Separate ANCOVAS were performed on reaction time data, errors of commission, and errors of omission using current nicotine, current marijuana, and prenatal alcohol as covariates, which were selected given that these variables have been shown to impact performance on inhibitory responding tasks, such as the Go/No-Go (Burden et al, 2010;Ettinger et al, 2017;Hatchard et al, 2015;Luijten, Little, & Franken, 2011;Smith et al, 2011;Wrege et al, 2014;Zhao et al, 2016). Other variables that have been shown to impact response inhibition, like age and education, did not warrant inclusion as covariates in the analyses, as there was little variability on these measures between groups (in terms of standard errors), while the selected drug exposure covariates did show variability between groups.…”
Section: Performance Parameters and Analysesmentioning
confidence: 99%
“…These effects may increase an individual’s susceptibility to the acute effects of marijuana on impulsivity and broader neurocognitive functioning (Martin-Santos et al, 2010; Wrege et al, 2014). Recreational marijuana users report elevated impulsivity traits, impulsive behaviors, and deficits in inhibitory control relative to non-drug users, but similar to binge drinkers (Griffith-Lendering et al, 2012; Moreno et al, 2012).…”
Section: Introductionmentioning
confidence: 99%