TY - JOUR PY - 2019// TI - Attentional bias towards cannabis cues in cannabis users: a systematic review and meta-analysis JO - Drug and alcohol dependence A1 - O'Neill, Aisling A1 - Bachi, Bianca A1 - Bhattacharyya, Sagnik SP - ePub EP - ePub VL - ePub IS - ePub N2 - INTRODUCTION: Attentional bias, the automatic selective attentional orientation towards drug-related stimuli is well demonstrated in substance users. However, attentional bias studies of cannabis users specifically have thus far been inconclusive. Thus, the aim of this systematic review and meta-analysis was to synthesize the currently available literature regarding cannabis related attentional bias in cannabis users.

METHODS: Literature search and selection was carried out, following the PRISMA guidelines, with all included studies investigating the relationship between cannabis use and attentional bias towards cannabis cues.

RESULTS: Fourteen manuscripts, reporting on 1271 participants (cannabis users n = 1044; controls n = 217), were considered for the systematic-review and majority were included in a meta-analysis. Studies reviewed used three types of attentional bias tasks: pictorial stimuli, word stimuli, and non-cannabis stimuli tasks. Greater attentional bias towards cannabis pictures (d = 0.42, P < 0.0001) and words (d = 0.63, P = 0.03) as well as both types of stimuli overall (d = 0.53, P < 0.0001) was observed in cannabis users compared to controls, though there was evidence of significant heterogeneity for both word stimuli and overall meta-analysis. Bigger effect sizes were associated with shorter durations of exposure to cannabis stimuli suggesting mainly automatic orientating rather than controlled attention processing.

CONCLUSIONS: These findings suggest that cannabis users display greater attentional bias towards cannabis cues, likely an automatic process, than control groups. Future studies employing shorter exposure durations may validate attentional bias as a treatment target for the development of interventions in people with cannabis use disorder.

Copyright © 2019 Elsevier B.V. All rights reserved.

Language: en

LA - en SN - 0376-8716 UR - http://dx.doi.org/10.1016/j.drugalcdep.2019.107719 ID - ref1 ER -