Kieron O'Connor

Research areas

• Biological, Psychological and Social Signatures of Mental Health
• Technology Development and Knowledge Transfer 
• Treatment and Rehabilitation adapted to Populations

Studies Centre

The Obsessive-Compulsive Disorder and Tic Disorder Studies Centre
Director

University affiliation

Full Professor, Department of Psychiatry, Montreal University
Professor (without tenure), Department of Psychoeducation and Psychology, Université du Québec en Outaouais

Profile

Kieron O’Connor received his doctoral degree and clinical training at the Institute of Psychiatry, Maudsley Hospital in London. He is currently director of the study centre for research into tic and obsessional disorders. His research focuses on improving understanding and treatment of people suffering from obsessive-compulsive spectrum and related disorders. He has created three multidisciplinary research teams working respectively on: treatment of tic disorder Gilles de la Tourette syndrome; delusional disorders; and obsessional disorders. His approach combines clinical and psychophysiological methods. His recent research extends treatment programs into eating disorders and body dysmorphic disorder and to children and adolescents. He is also involved with community education and workshops and has authored four treatment manuals.

Research Interests

• Cognitive behaviour therapy
• Psychophysiology
• Cognitive processing
• Anxiety
• Obsessive compulsive disorder
• Gilles de la Tourette syndrome
• Delusional disorder

Research methodologies

• Quantitative
• Qualitative
• Clinical trials
• Case studies
• Questionnaires
• Observations

Recents Publications

Bertrand, A., Belanger, C., & O'Connor, K. (2011). [Eating disorders (ED) and Obsessive-compulsive disorders (OCD): common factors]. Sante Ment Que, 36(1), 149-179. Pubmed

Grenier, S., Schuurmans, J., Goldfarb, M., Preville, M., Boyer, R., O'Connor, K., Potvin, O., Hudon, C. (2011). The epidemiology of specific phobia and subthreshold fear subtypes in a community-based sample of older adults. Depression and anxiety, 28(6), 456-463. Pubmed

Grenier, S., Preville, M., Boyer, R., O'Connor, K., Beland, S. G., Potvin, O., Hudon, C.Brassard, J. (2011). The Impact of DSM-IV Symptom and Clinical Significance Criteria on the Prevalence Estimates of Subthreshold and Threshold Anxiety in the Older Adult Population. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry, 19(4), 316-326. Pubmed

Guay, S., Beaulieu-Prevost, D., Beaudoin, C., St-Jean-Trudel, E., Nachar, N., Marchand, A., O'Connor, K.P. (2011). How do social interactions with a significant other affect PTSD symptoms? An empirical investigation with a clinical sample. Journal of Aggression, Maltreatment & Trauma, 20(3), 280-303. Résumé / Abstract

Lavoie, M. E., Imbriglio, T. V., Stip, E., & O'Connor, K. P. (2011). Neurocognitive Changes Following Cognitive-Behavioral Treatment in Tourette Syndrome and Chronic Tic Disorder. International Journal of Cognitive Therapy, 4(1), 34-50. Résumé / Abstract 

Leclerc, J., O'Connor, K. P., Forget, J., & Lavoie, M. E. (2011). Behavioral program for managing explosive outbursts in children with Tourette syndrome. Journal of Developmental and Physical Disabilities Vol, 23(1), 33-47. Pas dans Pubmed

Polman, A., O'Connor, K. P., & Huisman, M. (2011). Dysfunctional belief-based subgroups and inferential confusion in obsessive-compulsive disorder. Personality and Individual Differences, 50(2), 153-158.

Perodeau, G., Paradis, I., Grenier, S., O'Connor, K., & Grenon, E. (2011). Chronic psychotropic drug use among frail elderly women receiving home care services. J Women Aging, 23(4), 321-341. Pubmed

St-Pierre-Delorme, M. E., Lalonde, M. P., Perreault, V., Koszegi, N., & O'Connor, K. (2011). Inference-based therapy for compulsive hoarding: A clinical case study. Clinical Case Studies, 10 (4), 291-303. Resumé / Abstract

Taillon, A., O'Connor, K., Dupuis, G., & Lavoie, M. (2011). Inference-Based Therapy for Body Dysmorphic Disorder. Clinical psychology & psychotherapy. Pubmed

Aardema, F., O'Connor, K., Cote, S., & Taillon, A. (2010). Virtual reality induces dissociation and lowers sense of presence in objective reality. Cyberpsychology, behavior and social networking, 13(4), 429-435. Pubmed

Aardema, F., Wu, K. D., Careau, Y., O'Connor, K., Julien, D., & Dennie, S. (2010). The Expanded Version of the Inferential Confusion Questionnaire: Further Development and Validation in Clinical and Non-Clinical Samples. Journal of Psychopathology and Behavioral Assessment, 32(3), 448-462.

Leclerc, J., Laverdure, A., Forget, J., O'Connor, K., & Lavoie, M. (2010). Intervention specialisée pour la gestion des épisodes explosifs auprès d'un enfant atteint du syndrome de Gilles de la Tourette et d'un trouble deficitaire de l'attention avec hyperactivité. Journal de Therapie Comportementale et Cognitive, 20(3), 104-111. 

Aardema, F., O'Connor, K., Pelissier, M.-C., & Lavoie, M. (2009). The quantification of doubt in obsessive-compulsive disorder. International Journal of Cognitive Therapy, 2(2), 188-205. - Voir l'article

Aardema, F., Radomsky, A.S., O'Connor, K.P., Julien, D. (2009). Inferential Confusion, Obsessive Beliefs and Obsessive-Compulsive Symptoms: A Multidimensional Investigation of Cognitive Domains. Clinical Psychology and Psychotherapy, 15(4), 227-238.

Borgeat, F., Stankovic, M., Khazaal, Y., Rouget, B., Baumann, M., Riquier, F., O'Connor, K., Jermann, F., Zullino, D., Bondolfi, G. (2009). Does the form or the amount of exposure make a difference in the cognitive-behavioral therapy treatment of social phobia? Journal of Nervous and Mental Disease, 197(7), 507-513. Pubmed 

Grenier, S., O'Connor, K. P., & Belanger, C. Belief in the obsessional doubt as a real probability and its relation to other obsessive-compulsive beliefs and to the severity of symptomatology. The British journal of clinical psychology / the British Psychological Society, 49(Pt 1), 67-85. Pubmed

Grenier S, O'Connor K, Bélanger C. (2009). Obsessional beliefs, compulsive behaviours and symptom severity: their evolution and interrelation over stages of treatment. Clinical Psychology and Psychotherapy, 15(1):15-27.

Julien, D., O'Connor, K., & Aardema, F. (2009). Intrusions related to obsessive-compulsive disorder: a question of content or context? Journal of Clinical Psychology, 65(7), 709-722. Pubmed

O'Connor, K., Koszegi, N., Aardema, F., van Niekerk, J., & Taillon, A. (2009). An inference-based approach to treating obsessive-compulsive disorders. Cognitive and Behavioral Practice, 14(4), 420-429.

O'Connor, K., Laverdure, A., Taillon, A., Stip, E., Borgeat, F., & Lavoie, M. (2009). Cognitive behavioral management of Tourette's syndrome and chronic tic disorder in medicated and unmedicated samples. Behaviour Research and Therapy, 47(12), 1090-1095. Pubmed 

O'Connor, K. (2009). DIRT-danger ideation reduction therapy for obsessive-compulsive washers: a comprehensive guide to treatment. Clinical Psychology and Psychotherapy, Jul 19(Epub ahead of print). Pubmed 

O'Connor, K. (2009). Cognitive and Meta-cognitive Dimensions of Psychoses. Canadian Journal of Psychiatry-Revue Canadienne De Psychiatrie, 54(3), 152-159.

O'Connor, K. P., Janelle, C., Coutu, M. F., Rouleau, A., Lessard, M. J., Kirouac, C., et al. (2009). 'I'm Cured But....' Perceptions of Illness Following Treatment. Journal of Health Psychology, 14(2), 278-287.

O'Connor K, Marchand A, Brousseau L, Aardema F, Mainguy N, Landry P, Savard P, Léveillé C, Lafrance V, Boivin S, Pitre D, Robillard S, Bouthillier D. (2009). Cognitive-behavioural, pharmacological and psychosocial predictors of outcome during tapered discontinuation of benzodiazepine. Clinical Psychology and Psychotherapy, 15(1):1-14.

Wu, K., Aardema, F., & O'Connor, K. (2009). Inferential confusion, obsessive beliefs, and obsessive-compulsive symptoms: a replication and extension. Journal of Anxiety Disorders, 23(6), 746-752. Pubmed

O'Connor, K. P., Lavoie, M. E., Stip, E., Borgeat, F., & Laverdure, A. (2008). Cognitive-behaviour therapy and skilled motor performance in adults with chronic tic disorder. Neuropsychological Rehabilitation, 18(1), 45-64.

Lavoie, M., Thibault, G., O'Connor, K.,et al. (2007). "Memory and Executive Functions in Adults with Gilles de la Tourette Syndrome and Chronic Tic Disorder." Cognitive Neuropsychiatry 12(2): 165-181.
 
O'Connor, K., Stip, E., et al. (2007). "Treating Delusional Disorder: A Comparison of Cognitive-Behavioural Therapy and Attentional Placebo Control." The Canadian Journal of Psychiatry 52(3): 182-190.

Radomsky, A. S., Bohne, A., O'Connor, K., et al. (2007). "Treating Comorbid Presentations: OCD and Disorders of Impulse Control." In: Anthony, M.M., Purdon, C., Summerfeldt, L.J. Psychological treatment of OCD: Fundamentals and beyond. New York, APA Publications.
 
Aardema, F., Kleijer, T.M.R., O'Connor, K., et al. (2006). "Processes of Inference, Thinking, and Obsessive-Compulsive Behaviour in a Normal Sample." Psychological Reports 99: 213-220.
 
Aardema, F., O’Connor, K.P., et al. (2006). "Inferential Confusion and Obsessive Beliefs in Obsessive-Compulsive Disorder." Cognitive Behavior Therapy 35: 138-147.
  
Berthiaume, C., Turgeon, L., O'Connor, K., et al. (2006). "Évaluation et traitement du trouble obsessionnel-compulsif à l'enfance et à l'adolescence". In: Turgeon, L., Gendreau, P. Les troubles anxieux chez les enfants et les adolescents. Marseille, France, Solal: 129-154.
  
Grenier, S., O'Connor, K., et al. (2006). "Surinvestissement des doutes obsessionnels et de leurs conséquences anticipées chez les patients qui souffrent d'un trouble obsessionnel-compulsif (TOC): Un portrait sociodémographique et clinique." Revue Francophone de Clinique Comportementale et Cognitive 11(4): 17-25.
 
Grenier, S., O'Connor, K., et al. (2006). "Le trouble obsessionnel-compulsif et l'insight: une revue critique de la littérature." Canadian Psychology/Psychologie Canadienne 47(2): 96-109.
  
Julien, D., O’Connor, K.P. (2006). "Intrusive Thoughts, Obsessions, and Appraisals in Obsessive-Compulsive Disorders: A Critical Review." Clinical Psychology Review 27(3): 366-383.
 
Julien, D., O’Connor, K.P., et al. (2006). "The Specificity of Belief Domains in Obsessive-Compulsive Symptom Subtypes." Personality and Individual Differences 41(7): 1205-1216.
  
O’Connor, K. P. (2006). "Behavioral Activity and Tic Disorder." Behavior Analyst Today 7(1): 19-31.
   
O’Connor, K. P., Marchand, A., et al. (2006). La vie sans tranquillisants: Programme d'aide au succès du sevrage aux benzodiazépines. Québec, QC, Stanké.
 
O'Connor, K. P., Aardema, F., et al. (2006). "Cognitive Behaviour Therapy and Medication in the Treatment of Obsessive-Compulsive Disorder." Acta Psychiatrica Scandinavica 113(5): 408-419.

Radomsky, A. S., Ashbauch, A.R., O'Connor, K., et al. (2006). "Psychometric Properties of the French and English Versions of the Social Phobia Inventory." Canadian Journal of Behavioural Science 38(4): 354-360.
 
Radomsky, A. S., Ouimet, A.J., O'Connor, K., et al. (2006). "Psychometric Properties of the French and English Versions of Claustrophobia Questionnaire (CLQ)." Journal of Anxiety Disorders 20(6): 818-828.
 
Radomsky, A. S., Ouimet, A.J., O'Connor, K., et al. (2006). "Psychometric Properties of the French and English Versions of the Vancouver Obsessional-Compulsive Inventory and the Symmetry Ordering and Arranging Questionnaire." Cognitive Behavior Therapy 35(3): 164-173.