{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T22:46:09Z","timestamp":1781736369871,"version":"3.54.5"},"reference-count":44,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T00:00:00Z","timestamp":1778025600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T00:00:00Z","timestamp":1778025600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Addiction"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background and Aims<\/jats:title>\n                    <jats:p>Cannabis is among the most widely used psychoactive substances globally and is often consumed alongside tobacco. Cannabis use has been associated with impairments in attention, learning, and memory, whereas nicotine can acutely enhance, but chronically impair, certain cognitive functions. Most studies examine cannabis in isolation, leaving the cognitive impact of tobacco co\u2010use unclear. This study aimed to estimate differences in cognitive performance between individuals with cannabis use disorder (CUD) and healthy controls, to determine whether cognition relates to heaviness of cannabis use or CUD symptom severity, to test moderation by daily tobacco use, and to assess whether baseline cognition was associated with cannabis outcomes one year later.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Cross\u2010sectional and one\u2010year longitudinal study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>The Netherlands and Texas, USA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>A total of 231 participants aged 18\u201330 participated: 130 with CUD (57.7% male) and 101 controls (43.6% male).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Measurements<\/jats:title>\n                    <jats:p>Participants completed tasks assessing interference control, attentional bias, sustained attention, executive functions, emotion recognition, delayed recall memory, working memory, and intelligence quotient (IQ). Primary outcomes were cognitive task scores; predictors included heaviness of cannabis use, CUD symptom severity, and daily tobacco use.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Findings<\/jats:title>\n                    <jats:p>\n                      Compared with controls, individuals with CUD performed worse on interference control (rank biserial correlation [r\n                      <jats:sub>rank<\/jats:sub>\n                      ]\u2009=\u20090.080, p\u2009&lt;\u20090.001), immediate recall memory (r\n                      <jats:sub>rank<\/jats:sub>\n                      \u2009=\u20090.089, p\u2009=\u20090.009), delayed recall memory (r\n                      <jats:sub>rank<\/jats:sub>\n                      \u2009=\u20090.090, p\u2009=\u20090.013), executive functions (r\n                      <jats:sub>rank<\/jats:sub>\n                      \u2009=\u20090.089, p\u2009=\u20090.016), and estimated IQ (r\n                      <jats:sub>rank<\/jats:sub>\n                      \u2009=\u20090.081, p\u2009&lt;\u20090.001). Within the CUD group, cognitive performance was unrelated to heaviness of use or CUD severity. Before correction, daily tobacco use moderated the link between CUD severity and working memory (p\u2009=\u20090.011, unstandardized beta [\n                      <jats:italic>B<\/jats:italic>\n                      ]\u2009=\u2009\u22121.83), with poorer performance observed only among non\u2010tobacco users. Lower attentional bias (p\u2009=\u20090.027,\n                      <jats:italic>B<\/jats:italic>\n                      \u2009=\u2009\u22121.78) and sustained attention (p\u2009=\u20090.023,\n                      <jats:italic>B<\/jats:italic>\n                      \u2009=\u2009\u221227.88) were modestly associated with greater CUD severity at one\u2010year follow\u2010up.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Cannabis use disorder (CUD) appears to be associated with deficits in several cognitive domains independent of use intensity or severity. Tobacco and cannabis co\u2010use appears to be related to relatively better working memory. Attention\u2010related cognition appears to have limited associations with later CUD outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/add.70457","type":"journal-article","created":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T23:09:07Z","timestamp":1778108947000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Cross\u2010sectional and longitudinal associations of cannabis use with cognitive functioning in individuals with a cannabis use disorder: The moderating role of nicotine"],"prefix":"10.1111","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1803-9336","authenticated-orcid":false,"given":"Emese","family":"Kroon","sequence":"first","affiliation":[{"name":"Neuroscience of Addiction (NofA) Lab, Center for Substance Use and Addiction Research (CESAR), Department of Psychology, Education and Child Studies Erasmus University Rotterdam  Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nora","family":"de Bode","sequence":"additional","affiliation":[{"name":"Neuroscience of Addiction (NofA) Lab, Center for Substance Use and Addiction Research (CESAR), Department of Psychology, Education and Child Studies Erasmus University Rotterdam  Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karis","family":"Colyer\u2010Patel","sequence":"additional","affiliation":[{"name":"Neuroscience of Addiction (NofA) Lab, Center for Substance Use and Addiction Research (CESAR), Department of Psychology, Education and Child Studies Erasmus University Rotterdam  Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia Hua","family":"Hsieh","sequence":"additional","affiliation":[{"name":"Neuroscience of Addiction (NofA) Lab, Center for Substance Use and Addiction Research (CESAR), Department of Psychology, Education and Child Studies Erasmus University Rotterdam  Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7466-4796","authenticated-orcid":false,"given":"Francesca","family":"Filbey","sequence":"additional","affiliation":[{"name":"Department of Psychology, School of Behavioral and Brain Sciences University of Texas at Dallas  Dallas TX USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7699-2582","authenticated-orcid":false,"given":"Janna","family":"Cousijn","sequence":"additional","affiliation":[{"name":"Neuroscience of Addiction (NofA) Lab, Center for Substance Use and Addiction Research (CESAR), Department of Psychology, Education and Child Studies Erasmus University Rotterdam  Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,6]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"UNODC.World Drug Report 2024.2024. 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