Reaching out Towards Cannabis: Approach-bias in Heavy Cannabis Users Predicts Changes in Cannabis Use
Overview
Affiliations
Aims: Repeated drug exposure can lead to an approach-bias, i.e. the relatively automatically triggered tendencies to approach rather that avoid drug-related stimuli. Our main aim was to study this approach-bias in heavy cannabis users with the newly developed cannabis Approach Avoidance Task (cannabis-AAT) and to investigate the predictive relationship between an approach-bias for cannabis-related materials and levels of cannabis use, craving, and the course of cannabis use.
Design, Settings And Participants: Cross-sectional assessment and six-month follow-up in 32 heavy cannabis users and 39 non-using controls.
Measurements: Approach and avoidance action-tendencies towards cannabis and neutral images were assessed with the cannabis AAT. During the AAT, participants pulled or pushed a joystick in response to image orientation. To generate additional sense of approach or avoidance, pulling the joystick increased picture size while pushing decreased it. Craving was measured pre- and post-test with the multi-factorial Marijuana Craving Questionnaire (MCQ). Cannabis use frequencies and levels of dependence were measured at baseline and after a six-month follow-up.
Findings: Heavy cannabis users demonstrated an approach-bias for cannabis images, as compared to controls. The approach-bias predicted changes in cannabis use at six-month follow-up. The pre-test MCQ emotionality and expectancy factor were associated negatively with the approach-bias. No effects were found on levels of cannabis dependence.
Conclusions: Heavy cannabis users with a strong approach-bias for cannabis are more likely to increase their cannabis use. This approach-bias could be used as a predictor of the course of cannabis use to identify individuals at risk from increasing cannabis use.
Hahn A, Corcoran E, Danielson C Contemp Clin Trials Commun. 2025; 44:101435.
PMID: 39944963 PMC: 11814518. DOI: 10.1016/j.conctc.2025.101435.
Feeling good, approaching the positive.
Kobrock K, Solzbacher J, Gotzner N, Konig P Front Psychol. 2025; 15:1491612.
PMID: 39744023 PMC: 11689285. DOI: 10.3389/fpsyg.2024.1491612.
Kahveci S, Bathke A, Blechert J Psychon Bull Rev. 2024; .
PMID: 39443394 DOI: 10.3758/s13423-024-02597-y.
Kuhns L, Kroon E, Filbey F, Cousijn J Addict Behav Rep. 2023; 18:100507.
PMID: 37485034 PMC: 10359718. DOI: 10.1016/j.abrep.2023.100507.
Rosenthal A, Chen K, Beck A, Romanczuk-Seiferth N Sci Rep. 2023; 13(1):10074.
PMID: 37344561 PMC: 10284857. DOI: 10.1038/s41598-023-37083-3.