Centre intégré universitaire de santé et de services sociaux de l’Est-de-l’Île-de-Montréal
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Ouellet-Morin, Isabelle

Ph. D. in clinical psychology

Researcher, Centre de recherche de l'Institut universitaire en santé mentale de Montréal

Assistant Professor, School of criminology, University of Montreal

Phone : 514-251-4000
isabelle.ouellet-morin@umontreal.ca

Areas of expertise

Adversity and intimidation - Stress - Anti-social behaviors

Profile

Isabelle Ouellet-Morin studied the physiological response to stress in the context of victimization during a postdoctoral fellow at the King's College of London (England). She is currently interested in the impact of experienced victimization (e.g., abuse, bullying by peers) on mental health and conduct problems of adolescents and young adults, the underlying physiological (e.g., stress hormones) and psychological (e.g. coping strategies) mechanisms, as well as factors that contribute to vulnerability and resilience among individuals faced with these experiences. One of her projects currently aims to develop ways to reduce experiences of bullying in adolescents and young adults. She is a researcher at the Centre for Studies on Human Stress at the Institute.


Grants and Awards

  • Biological embedding of early-life stress and its impact on physical and mental health: a prospective study of adolescents (principal investigator, CIHR, 2014-2018).
  • New Investigator Award: psychobiological sequelae of victimization in adolescents and emerging adults: an investigation into the early roots of mental health and behavioral problems (Instituts de Recherche en Santé du Canada, 2013-2019).
  • Validation of a mobile application (+Fort) to reduce victimization and its impact on functioning (Principal Investigator, Institut universitaire en santé mentale de Montreal Foundation, Bell Canada, 2013).
  • Impact of stress on criminal recidivism and social rehabilitation: A longitudinal study in men released after a period of incarceration (Fonds de Recherche Société et Culture du Québec, New Investigator grant, Principal Investigator, 2012-2013).
  • Stress reactivity to provocation and aggression and violence in early childhood: Do early victimization and regulatory mechanisms matter? (Guggenheim Foundation, Principal Investigator, 2012-2013).
  • The role of peers in psychosocial educational and physical development in children and adolescents: Understand to better respond and respond to better understand (Co-Investigator, 2012-2013).
  • Desjardins Award from the Institut universitaire en santé mentale de Montreal Foundation, 2013).

Publications

2016

Brendgen, M., Ouellet-Morin, I., Lupien, S. J., Vitaro, F., Dionne, G., & Boivin, M. (2016). Environmental influence of problematic social relationships on adolescents’ daily cortisol secretion: A monozygotic twin-difference study. Psychological Medicine, Epub ahead of print. Pubmed

Ouellet-Morin, I., Laurin, M., Robitaille, M. P., Brendgen, M., Lupien, S. J., Boivin, M., & Vitaro, F. (2016). Validation of an adapted procedure to collect hair for cortisol determination in adolescents. Psychoneuroendocrinology, 70, 58-62. Pubmed

Pinto, R., Rijsdijk, F., Ouellet-Morin, I., Asherson, P., McLoughlin, G., & Kuntsi, J. (2016). The aetiological association between the dynamics of cortisol productivity and ADHD. J Neural Transm (Vienna). Epub ahead of print. Pubmed

Ouellet-Morin, I., Brendgen, M., Girard, A., Lupien, S. J., Dionne, G., Vitaro, F., & Boivin, M. (2016). Evidence of a unique and common genetic etiology between the CAR and the remaining part of the diurnal cycle: A study of 14 year-old twins. Psychoneuroendocrinology, 66, 91-100. Pubmed

2015

Brendgen, M., Ouellet-Morin, I., Boivin, M., Vitaro, F., Tremblay, R. E., & Dionne, G. (2015). Evidence of specific and common genetic etiologies between the car and the remaining part of the diurnal cycle: A study of adolescent twins. Psychoneuroendocrinology, 61, 42-43. Pubmed

Ouellet-Morin, I., Cote, S. M., Vitaro, F., Hebert, M., Carbonneau, R., Lacourse, E., Turecki, G., Tremblay, R. E. (2015). Effects of the MAOA gene and levels of exposure to violence on antisocial outcomes. Br J Psychiatry. Epub ahead of print. Pubmed

Ouellet-Morin, I.
, Fisher, H. L., York-Smith, M., Fincham-Campbell, S., Moffitt, T. E., & Arseneault, L. (2015). Intimate partnet violence and new-onset depression : A longitudinal study of women's childhood and adult histories of abuse. Depress Anxiety. Epub ahead of print. Pubmed

2014

Jaffee, S. R., McFarquhar, T., Stevens, S., Ouellet-Morin, I., Melhuish, E., & Belsky, J. (2014). Interactive effects of early and recent exposure to stressful contexts on cortisol reactivity in middle childhood. J Child Psychol Psychiatry. Epub ahead of print. Pubmed

Lacourse, E., Boivin, M., Brendgen, M., Petitclerc, A., Girard, A., Vitaro, F., Paquin, S., Ouellet-Morin, I., Dionne, G., Tremblay, R. E. (2014). A longitudinal twin study of physical aggression during early childhood: evidence for a developmentally dynamic genome. Psychol Med, Epub ahead of print. Pubmed

2013

Jaffee, S. R., Bowes, L., Ouellet-Morin, I., Fisher, H. L., Moffitt, T. E., Merrick, M. T., & Arseneault, L. (2013). Safe, stable, nurturing relationships break the intergenerational cycle of abuse: a prospective nationally representative cohort of children in the United kingdom. J Adolesc Health, 53(4 Suppl), S4-S10. Pubmed

Ouellet-Morin, I., Wong, C. C. Y., Danese, A., Pariante, C. M., Papadopoulos, A. S., Mill, J., & Arseneault, L. (2013). Increased serotonin transporter gene (SERT) DNA methylation is associated with bullying victimization and blunted Cortisol response to stress in childhood: A longitudinal study of discordant monozygotic twins. Psychological Medicine, 43(9), 1813-1823. Pubmed

Lupien, S. J., Ouellet-Morin, I., Trepanier, L., Juster, R. P., Marin, M. F., Francois, N., Sindi, S., Wan, N., Findlay, H., Durand, N., Cooper, L., Schramek, T., Andrews, J., Corbo, V., Dedovic, K., Lai, B., Plusquellec, P. (2013). The DeStress for Success Program: Effects of a Stress Education Program on Cortisol Levels and Depressive Symptomatology in Adolescents Making the Transition to High School. Neuroscience. Epub ahead of print. Pubmed

Bowes, L., Maughan, B., Ball, H., Shakoor, S., Ouellet-Morin, I., Caspi, A., Moffitt, T. E., Arseneault, L. (2013). Chronic bullying victimization across school transitions: The role of genetic and environmental influences. Dev Psychopathol, 25(2), 333-346. Pubmed

2012

Ouellet-Morin, I., Wong, C. C., Danese, A., Pariante, C. M., Papadopoulos, A. S., Mill, J., Arseneault, L. (2012). Increased serotonin transporter gene (SERT) DNA methylation is associated with bullying victimization and blunted cortisol response to stress in childhood: a longitudinal study of discordant monozygotic twins Psychol Med (pp. 1-11). Epub ahead of print. Pubmed

Pingault, J. B., Cote, S. M., Booij, L., Ouellet-Morin, I., Castellanos-Ryan, N., Vitaro, F., Turecki, G., Tremblay, R. E. (2012). Age-dependent effect of the MAOA gene on childhood physical aggression. Mol Psychiatry. Epub ahead of print. Pubmed

Shakoor, S., Jaffee, S.R., Bowes, L., Ouellet-Morin, I., Andreou, P., Happe, F., Moffitt, T. E., Arseneault, L. (2012). A prospective longitudinal study of children's theory of mind and adolescent involvement in bullying. J Child Psychol Psychiatry 53(3): 254-61.  Pubmed

Bowes L, Maughan B, Ball H, Shakoor S, Ouellet-Morin I, Caspi A, Moffitt TE & L (sous presse). Chronic bullying victimization across school transition: the role of genetic and environmental influences. Development and Psychopathology.

2011

Ouellet-Morin I, Odgers C, Danese A, Bowes L, Shakoor S, Papadopoulos A, Caspi A, Moffitt TE, & Arseneault L (2011). Blunted cortisol responses to stress signal social and behavioral problems among maltreated/bullied 12-year-old children. Biological Psychiatry, 70, 1016-1023.

Plusquellec P, Ouellet-Morin I, Feng B, Tremblay RE, Lupien SJ and Boivin M (2011). Glucocorticoids are associated with resource control in a competitive situation in 19-month-old boys. Hormones and Behavior, 60, 159-164.

Ouellet-Morin I, Danese A, Bowes L, Shakoor S, Ambler A, Pariante C, Papadopoulos A, Caspi A, Moffitt TE, & Arseneault L (2011). A discordant MZ twin design shows blunted cortisol reactivity among bullied children. Journal of the American Academy of Child Psychiatry. 50, 574-582.

Accompanying Editorial by Polanczyk, G. (2011). Monozygotic twins discordant for being bullied: A step closer to understanding the biology of victimization. Journal of the American Academy of Child and Adolescent Psychiatry, 50, 538-539.

Ouellet-Morin I, Danese A, Williams B, & Arseneault L (2011). Measurement of C-Reactive protein in the saliva: a validation study. Brain, Behavior and Immunity, 25 (4), 640-646.

Ouellet-Morin I, Dionne G, Lupien, SJ, Muckle G, Côté SM, Pérusse D, Tremblay RE & Boivin M. (2011). Prenatal alcohol exposure and cortisol activity in 19-month-old toddlers: an investigation of the moderating effects of sex and testosterone. Psychopharmacology, 214 (1), 297-307

2010

Ouellet-Morin I, Tremblay RE, Boivin M, Meaney M, Kramer M & Côté SM (2010). Diurnal cortisol secretion at home and in child care: a prospective study of toddlers. Journal of Child Psychology and Psychiatry, 51 (3), 295-303.

2009

Ouellet-Morin I, Boivin M, Dionne G, Lupien SJ, Arseneault L, Barr RG, Pérusse D, & Tremblay RE (2009). Daytime cortisol secretion in 6-month-old twins: genetic and environmental contributions as a function of early familial adversity. Biological Psychiatry. 65(5), 409-416.