Faculty profile

Massimiliano Orri

ResearcherUniversité de Montréal

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.

Massimiliano Orri

Researcher

Health Sciences

Université de Montréal

Montreal, Quebec, Canada

Supervision signals

Has led research grants, which requires an independent research appointment. Ask their department whether they supervise graduate students.
55 publications in the last five years, latest in 2026.
Senior (last) author on 14 recent papers, a sign of leading a research group.
Principal investigator on 1 research grant (1 CIHR), most recently in 2026.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

Publications

Citations

Collaborators

Grants

Publications by year

Counts cover the publications linked to this profile. Citations and the h-index appear when the source records them.

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Signals and details

Research

Cannabis Early Onset Mental Health Neurocognition Sex And Gender Sexual Diversity

Latest papers

Correction: A genome-wide investigation of depression among individuals with and without irritability.
Molecular psychiatry · 2026 · senior author
Developmental Trajectories of Suicidality in Sexually Diverse and Heterosexual Adolescents: Findings From the Quebec Longitudinal Study of Child Development: Trajectoires développementales de suicidalité chez les adolescents hétérosexuels et de la diversité sexuelle : Résultats de l'Étude longitudinale sur le développement des enfants du Québec.
Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2026
Adolescent suicidal distress and adult mental health: findings from a 25-year population based cohort.
European child & adolescent psychiatry · 2026

All 95 publications

Latest funding

Cannabis use-related harms on neurocognition and mental health: harnessing long-term longitudinal cohorts to study persistence, recovery, risk and resilience.
CIHR · 2026 · Principal investigator
$2,399,100
Longitudinal associations between cannabis and polysubstance use and neurocognition across youth (13-27 years): Evidence from two prospective birth cohorts
CIHR · 2022 · Co-investigator
$399,100
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.
CIHR · 2022 · Co-investigator
$1,304,325

All 4 grants and awards

95 publications.

Correction: A genome-wide investigation of depression among individuals with and without irritability.

St-Pierre J, Jang J, Nagy C, Fiori L, Turecki G, Dupuis J, Bhatnagar SR, Orri M

Molecular psychiatry2026Senior author

DOI: 10.1038/s41380-026-03655-8 PMID: 42185532

Developmental Trajectories of Suicidality in Sexually Diverse and Heterosexual Adolescents: Findings From the Quebec Longitudinal Study of Child Development: Trajectoires développementales de suicidalité chez les adolescents hétérosexuels et de la diversité sexuelle : Résultats de l'Étude longitudinale sur le développement des enfants du Québec.

MacNeil S, Sicotte R, Davisse-Paturet C, Chartrand E, Alexander E, Lecousy M, Girard A, Orri M, Chadi N, Ouellet-Morin I, Pullen Sansfaçon A, Iyer SN, Castellanos-Ryan N, Colman I, Juster RP, Geoffroy MC

Canadian journal of psychiatry. Revue canadienne de psychiatrie2026

DOI: 10.1177/07067437261442420 PMID: 41983935

Adolescent suicidal distress and adult mental health: findings from a 25-year population based cohort.

Civita A, Colman I, Orri M, Chartrand E, Dorais M, Spodenkiewicz M, Martinez P, Castellanos-Ryan N, Ouellet-Morin I, Côté SM, Thombs BD, Geoffroy MC

European child & adolescent psychiatry2026

DOI: 10.1007/s00787-026-03183-4 PMID: 42747516

Young adult self-harm: The role of victimisation and polygenic risk in a population-based longitudinal study.

Marzecki F, Ouellet-Morin I, Zavos HMS, Côté S, Tremblay RE, Gouin JP, Orri M, Boivin M, Geoffroy MC

JCPP advances2026

DOI: 10.1002/jcv2.70061 PMID: 42416628

Mental Health Service Use in Sexually and Gender Diverse Youths and Cisgender Heterosexual Youths.

Anzarouth L, MacNeil S, Ryan NC, Martineau A, Orri M, Temcheff C, Dorais M, Girard A, Iyer SN, Colman I, Ouellet-Morin I, Chadi N, Juster RP, Geoffroy MC

JAMA network open2026

DOI: 10.1001/jamanetworkopen.2026.26797 PMID: 42599709

A genome-wide investigation of depression among individuals with and without irritability.

St-Pierre J, Jang J, Nagy C, Fiori L, Turecki G, Dupuis J, Bhatnagar SR, Orri M

Molecular psychiatry2026Senior author

DOI: 10.1038/s41380-026-03548-w PMID: 41872521

Mental health status of sexually diverse youth at age 23: Cross-sectional data from the Quebec Longitudinal Study of Child Development.

Martineau A, MacNeil S, Iyer SN, London-Nadeau K, Anzarouth L, Chartrand É, Colman I, Orri M, Chadi N, Ouellet-Morin I, Ryan NC, Sansfaçon AP, Juster RP, Geoffroy MC

Canadian journal of public health = Revue canadienne de sante publique2026

DOI: 10.17269/s41997-026-01235-5 PMID: 42484771

Cohort Profile: The Early Childhood Longitudinal Survey (ELPI), Chile.

Martínez P, Martínez V, Sotomayor López G, Rojas V, Encina J, Cociña M, Orri M

International journal of epidemiology2026Senior author

DOI: 10.1093/ije/dyag105 PMID: 42442393

Association between maternal infections during pregnancy and offspring suicide risk: A national cohort study.

Orri M, Løkkegaard ECL, Nordentoft M, Erlangsen A

Molecular psychiatry2026First author

DOI: 10.1038/s41380-025-03430-1 PMID: 41571895

Sex-specific pathways from early irritability trajectories to later suicidal ideations and behaviors: Findings from the ABCD study®.

Bellaert N, Simeone A, Zhang L, Zhuo H, Orri M, Liew Z, Tseng WL

Journal of child psychology and psychiatry, and allied disciplines2026

DOI: 10.1111/jcpp.70044 PMID: 40908153

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Massimiliano Orri

Research

Latest papers

Latest funding

Correction: A genome-wide investigation of depression among individuals with and without irritability.

Adolescent suicidal distress and adult mental health: findings from a 25-year population based cohort.

Young adult self-harm: The role of victimisation and polygenic risk in a population-based longitudinal study.

Mental Health Service Use in Sexually and Gender Diverse Youths and Cisgender Heterosexual Youths.

A genome-wide investigation of depression among individuals with and without irritability.

Mental health status of sexually diverse youth at age 23: Cross-sectional data from the Quebec Longitudinal Study of Child Development.

Cohort Profile: The Early Childhood Longitudinal Survey (ELPI), Chile.

Association between maternal infections during pregnancy and offspring suicide risk: A national cohort study.

Sex-specific pathways from early irritability trajectories to later suicidal ideations and behaviors: Findings from the ABCD study®.

Cannabis use-related harms on neurocognition and mental health: harnessing long-term longitudinal cohorts to study persistence, recovery, risk and resilience.

Longitudinal associations between cannabis and polysubstance use and neurocognition across youth (13-27 years): Evidence from two prospective birth cohorts

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.

Risk of long-term chronic diseases in individuals born preterm

Frequent collaborators

Massimiliano Orri

Marie-Claude Geoffroy

Gustavo Turecki

Michel Boivin

Isabelle Ouellet-Morin

Isabelle Ouellet-Morin

Isabelle Ouellet-Morin

Frank Vitaro

Natalie Castellanos Ryan

Natalie Castellanos Ryan

Nicholas Chadi

Ian Colman

Richard Tremblay

Michel Boivin

Michel Boivin

Caroline Temcheff

Martin Lepage

Ashok Malla

Corina Nagy

Martin Lepage

Vincent Paquin

Massimiliano Orri

Research

Latest papers

Latest funding

Correction: A genome-wide investigation of depression among individuals with and without irritability.

Adolescent suicidal distress and adult mental health: findings from a 25-year population based cohort.

Young adult self-harm: The role of victimisation and polygenic risk in a population-based longitudinal study.

Mental Health Service Use in Sexually and Gender Diverse Youths and Cisgender Heterosexual Youths.

A genome-wide investigation of depression among individuals with and without irritability.

Mental health status of sexually diverse youth at age 23: Cross-sectional data from the Quebec Longitudinal Study of Child Development.

Cohort Profile: The Early Childhood Longitudinal Survey (ELPI), Chile.

Association between maternal infections during pregnancy and offspring suicide risk: A national cohort study.

Sex-specific pathways from early irritability trajectories to later suicidal ideations and behaviors: Findings from the ABCD study&#xae;.

Cannabis use-related harms on neurocognition and mental health: harnessing long-term longitudinal cohorts to study persistence, recovery, risk and resilience.

Longitudinal associations between cannabis and polysubstance use and neurocognition across youth (13-27 years): Evidence from two prospective birth cohorts

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.

Risk of long-term chronic diseases in individuals born preterm

Frequent collaborators

Massimiliano Orri

Marie-Claude Geoffroy

Gustavo Turecki

Michel Boivin

Isabelle Ouellet-Morin

Isabelle Ouellet-Morin

Isabelle Ouellet-Morin

Frank Vitaro

Natalie Castellanos Ryan

Natalie Castellanos Ryan

Nicholas Chadi

Ian Colman

Richard Tremblay

Michel Boivin

Michel Boivin

Caroline Temcheff

Martin Lepage

Ashok Malla

Corina Nagy

Martin Lepage

Vincent Paquin

Sex-specific pathways from early irritability trajectories to later suicidal ideations and behaviors: Findings from the ABCD study®.