This profile is built from public research funding records (CIHR, NSERC and SSHRC) and PubMed. We have not imported them from a Université de Montréal directory, so their courses and email address may be missing. Find their university profile.
Research
Latest papers
Five-Year Outcomes of a School-Based Personality-Focused Prevention Program on Adolescent Substance Use Disorder: A Cluster Randomized Trial.
The American journal of psychiatry · 2025
Machine-learning prediction of adolescent alcohol use: a cross-study, cross-cultural validation.
Addiction (Abingdon, England) · 2019
Latest funding
- $2,399,100
Cannabis use-related harms on neurocognition and mental health: harnessing long-term longitudinal cohorts to study persistence, recovery, risk and resilience.
CIHR · 2026 · Co-investigator
- $719,100
An evaluation of an adolescent neuropsychological risk model of substance use
CIHR · 2024 · Principal investigator
- $399,100
Longitudinal associations between cannabis and polysubstance use and neurocognition across youth (13-27 years): Evidence from two prospective birth cohorts
CIHR · 2022 · Co-investigator
2 publications.
Five-Year Outcomes of a School-Based Personality-Focused Prevention Program on Adolescent Substance Use Disorder: A Cluster Randomized Trial.
Conrod P, Stewart SH, Seguin J, Pihl R, Masse B, Spinney S, Lynch S
Machine-learning prediction of adolescent alcohol use: a cross-study, cross-cultural validation.
Afzali MH, Sunderland M, Stewart S, Masse B, Seguin J, Newton N, Teesson M, Conrod P
Cannabis use-related harms on neurocognition and mental health: harnessing long-term longitudinal cohorts to study persistence, recovery, risk and resilience.
Principal investigators: Castellanos Ryan, Natalie; Chadi, Nicholas; Bellec, Pierre; Lippé, Sarah; Orri, Massimiliano
Keywords: Cannabis; Early Onset; Mental Health; Neurocognition; Sex And Gender; Sexual Diversity
An evaluation of an adolescent neuropsychological risk model of substance use
Principal investigators: Castellanos Ryan, Natalie; Seguin, Jean R
Keywords: Adolescence; Cognitive Development; Environmental Factors; Impulse-Control; Risky Decision-Making; Substance Use
Longitudinal associations between cannabis and polysubstance use and neurocognition across youth (13-27 years): Evidence from two prospective birth cohorts
Principal investigators: Castellanos Ryan, Natalie; Chadi, Nicholas
Keywords: Adolescence; Cannabis; Cognition; Gender; Polysubstance Use; Sex; Young Adulthood
Pubertal development and mental health in the 3D Cohort Study: Key biological, sociocultural and environmental correlates of puberty and their longitudinal association with mental health outcomes in boys and girls.
Principal investigators: Castellanos Ryan, Natalie; Seguin, Jean R
Keywords: Hormones; Mental Health; Puberty; Sex; Social Environment
Temporal effects of alcohol and polysubstance use on neurocognition across youth (13-25 years): Evidence from a prospective birth cohort
Principal investigators: Castellanos Ryan, Natalie; Chadi, Nicholas; Seguin, Jean R
Keywords: Adolescence; Alcohol Use; Cognition; Polysubstance Use; Transition To Adulhood
Exploring cannabis use and mental health in sexually and gender diverse youth: A qualitative, community-based study
Principal investigators: Castellanos Ryan, Natalie; D'Alessio, Heather
Keywords: Cannabis; Gender; Lgbt+; Mental Health; Sex; Sexual Orientation
Predictors of the development of substance use disorders in young people
Principal investigators: Pocuca, Nina
Keywords: Addiction; Early Onset Substance Use; Growth Mixture Modelling; Longitudinal Data Modelling; Mental Health; Risk And Protective Factors For Addiction; Structural Equation Modelling; Substance Use; Trajectories; Young People
From birth to adulthood: The role of age of cannabis use onset in the individual and environmental developmental pathways leading to substance use problems.
Principal investigators: Castellanos Ryan, Natalie
Keywords: Adolescence; Age Of Onset; Cannabis; Cognition; Substance Use Disorders
The role of age of cannabis use onset in the developmental pathways leading to substance use problems by early adulthood: key mediators and moderators.
Principal investigators: Castellanos Ryan, Natalie
Keywords: Age Of Onset; Cannabis; Longitudinal; Mediators; Moderators; Substance Use Problems
Shared and specific risk factors for early onset cannabis and other substance use and later substance use disorders: can we predict who will initiate cannabis use early and who will develop future substance use problems?
Principal investigators: Castellanos Ryan, Natalie
Keywords: Adolescence; Age Of Onset; Cannabis; Substance Use Disorders
From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.
Frequent collaborators
- Psychiatry
- Psycho-éducation
- Psychiatrie et addictologie
- Other
Co-authors at Université de Montréal, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.
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