Research Center Home | Contact | CHU Inside Map | Member's space | Français
About the Center Research Axes Researchers Clinical Research Services Students Chairs & Networks Communications Careers
 
You are here: › Research Center  › Our Researchers  › Our Postdoctorands › CASTELLANOS-RYAN , Natalie
Researchers
Our Researchers
Our Postdoctorands
 
 › Postdoctoral Fellow
 
 
CASTELLANOS-RYAN , Natalie  M.Sc., Ph.D.
 
 
     
 
Research Axis
 
   
 
 
 
 
 
Adress
 
 
CHU Sainte-Justine
 
 
3175, Chemin de la Côte Sainte-Catherine
 
 
Montréal  (QC), Canada
 
 
H3T 1C5
 
     
 
Phone
 
 
514 345-4931 #4060
 
 
 
     
     

natalie.castellanos.ryan@umontreal.ca
 
Career Summary, Research Topics and Interests
 
Research project title
The role of pubertal maturation and cognitive development in substance use across adolescence and young adulthood

University program
Psychiatry – University of Montreal


Research director

Jean Séguin

Research interests

My research focuses on the study of cognitive, personality and biological risk factors for alcohol and drug misuse as well as other externalising problems in adolescence. I have a particular interest in how deficits in self-regulation lead to behavioural problems in youth, as well as how to translate findings in neuro-psychology and epidemiology, identifying risk- and protective-factors for substance misuse and externalising problems, into effective prevention and intervention strategies for these behaviours. My doctoral thesis (King’s College London, 2009) focused on the comorbidity of substance misuse and conduct disorder in adolescence and how different facets of disinhibition or deficits in self-regulation relate to these behavioural problems. At the same time, much of my work at the Institute of Psychiatry (King’s College London) centered on the evaluation of a prevention and early intervention approach targeting personality risk factors for substance use and other behavioral problems in adolescence. Incorporating a more developmental perspective, my current research focuses on how pubertal development and development of executive functions in childhood predict risky behaviour, particularly substance use problems, in adolescence and early adulthood, and how personality is implicated in this association.

Most important publications

Castellanos-Ryan, N., Séguin, J.R. , Vitaro, F., Parent, S., & Tremblay, R.E. (accepted). A multimodal intervention for disruptive kindergarten children reduces substance-use across adolescence: a randomized control trial. British Journal of Psychiatry.

Castellanos-Ryan, N., Parent, S., Vitaro, F., Tremblay, R.E., & Séguin, J.R. (in press). Pubertal development, personality and substance use: A 10-year longitudinal study from childhood to adolescence. Journal of Abnormal Psychology.

Castellanos-Ryan, N., O’Leary-Barrett, M., Sully, L., & Conrod, P. (2013). Sensitivity and Specificity of a Brief Personality Screening Instrument in Predicting Future Substance Use, Emotional and Behavioral Problems. 18-Month Predictive Validity of the Substance Use Risk Profile Scale. Alcoholism: Clinical and Experimental Research, 37, E281-E290.

Castellanos-Ryan, N., Rubia, K., & Conrod, P. J. (2011). Response inhibition and reward response bias mediate the predictive relationships between impulsivity and sensation seeking and common and unique variance in conduct disorder and substance misuse. Alcoholism: Clinical and Experimental Research, 31, 140-155.

Castellanos-Ryan, N., & Conrod, P. J. (2011). Personality correlates of the common and unique variance across conduct disorder and substance misuse symptoms in adolescence. Journal of Abnormal Child Psychology, 39, 563-76.

Recent Presentations

Castellanos Ryan, N
.*, Conrod, P. J., Arseneault, L., Vitaro, F., Tremblay, R. E., Séguin, J. R. (2012). The structure and stability of substance use and conduct disorder symptoms across adolescence. Paper presented at the biennial meeting of the Life History Research Society, October 3-6, London, UK.

Castellanos-Ryan, N.*, Vitaro, F., Parent, S., Tremblay, R.E., & Séguin, J.R. (2012). An intervention for disruptive behavior in childhood reduces substance use across adolescence. Poster presented at the biennial meeting of the Life History Research Society, October 3-6, London, UK.

Castellanos-Ryan, N.*, Parent, S., Vitaro, F., Tremblay, R.E., & Séguin, J.R. (2012). Pubertal Development, Personality and Substance Use: A Longitudinal Study. Paper presented at the biennial meeting of the International Society for the Study of Behavioural Development, July 8-12, Edmonton, Canada.

Castellanos-Ryan, N.*, O’Leary-Barrett, M., Lassiter, A.M., Sully, L., & Conrod, P. (2012). Identifying adolescents at risk for substance use and other comorbid problems with a brief self-report personality scale. Paper presented at the biennial meeting of the Society for Research on Adolescence, March 8-10, Vancouver, Canada.

Castellanos Ryan, N.*, Pilon, M., Giguère, C-É., Parent, S., Zelazo, P.D., Vitaro, F., Tremblay, R.E., Séguin, J.R. (2011). Is Substance Use During Adolescence Associated With Later Working Memory Impairments in Young Adults? Poster presented at the Society for Research on Child Development Biennual meeting, March 31- April 2, Montréal, Canada.

Castellanos Ryan, N.*, Giguère, C-É., Pilon, M., Parent, S., Vitaro, F., Lambert, M., Tremblay, R.E., Séguin, J.R. (2011). Do Puberty and Sensation Seeking at age 13 Interact to Predict Change in Substance Use Behaviors in Boys Across Adolescence? Poster presented at the Society for Research on Child Development Biennual meeting, March 31- April 2, Montréal, Canada.

Castellanos Ryan, N.* & Conrod, P. (2009). Preventive alcohol and drug misuse among high risk adolescents. Paper presented at the 2009 Meeting of the Kettil Bruun Society, December 9 – 12, Nijmegen, Netherlands.

 
Awards and Distinctions
 
  • Postdoctoral Research Fellowship, Fonds de la Recherche en Santé (FRSQ): 05/2012 to 09/2013. Suspended until 04-2012
  • Travel grant awarded by CIHR ICS – IHDCYH, to attend the International Society for the Study of Behavioural Development, July 8-12 2012, Edmonton, Canada
  • Postdoctoral Research Fellowship, Merit Scholarship Program for Foreign Students, Ministère de l'Éducation, du Loisir et du Sport du Québec (MELS): 05/2011 to 04/2012
  • Travel grant awarded by CIHR ICS – IHDCYH, to attend the Canada-Finland-USA joint workshop “The early origins of addiction”, October 17-18 2011, Toronto, Canada
  • NIHR Biomedical Research Centre Genetics grant (2008 and 2009), UK. Title: Genes, Personality Risk and Adolescent Substance Misuse, co-investigator
  • Institute of Social Psychiatry research grant (2007), UK. Title: Substance misuse and conduct disorder in adolescence: the role of disinhibition in the onset of behavioural problems and their comorbidity, principal investigator
 
 
 
 
























 
Legal advice. (C) 2007-2008 Centre de Recherche du CHU Sainte-Justine. All rights reserved.