Jean Addington

Summary

Affiliation: University of Calgary
Country: Canada

Publications

  1. pmc Reliability and validity of the Calgary Depression Scale for Schizophrenia (CDSS) in youth at clinical high risk for psychosis
    Jean Addington
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada Electronic address
    Schizophr Res 153:64-7. 2014
  2. pmc Affect recognition in people at clinical high risk of psychosis
    Jean Addington
    Department of Psychiatry, Faculty of Medicine, University of Calgary, Calgary AB, Canada
    Schizophr Res 140:87-92. 2012
  3. pmc North American Prodrome Longitudinal Study (NAPLS 2): overview and recruitment
    Jean Addington
    Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Schizophr Res 142:77-82. 2012
  4. doi request reprint Prediction and prevention of psychosis in youth at clinical high risk
    Jean Addington
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, T2N 4N1, Canada
    Annu Rev Clin Psychol 8:269-89. 2012
  5. ncbi request reprint Cognitive behavioral therapy in prodromal psychosis
    Jean Addington
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada
    Curr Pharm Des 18:558-65. 2012
  6. ncbi request reprint Three-year outcome of treatment in an early psychosis program
    Jean Addington
    Department of Psychiatry, Alberta Centennial Mental Health Research Chair, Calgary, Alberta
    Can J Psychiatry 54:626-30. 2009
  7. doi request reprint Cognitive-behavioral therapy for individuals at high risk of developing psychosis
    Jean Addington
    Department of Psychiatry, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta T2N4N1, Canada
    J Clin Psychol 65:879-90. 2009
  8. doi request reprint A randomized controlled trial of cognitive behavioral therapy for individuals at clinical high risk of psychosis
    Jean Addington
    Department of Psychiatry, University of Calgary, Alberta, Canada
    Schizophr Res 125:54-61. 2011
  9. doi request reprint Outcome after discharge from an early psychosis program
    Jean Addington
    Department of Psychiatry, University of Calgary, Calgary, Canada
    Schizophr Res 106:363-6. 2008
  10. ncbi request reprint Neurocognitive and social functioning in schizophrenia: a 2.5 year follow-up study
    J Addington
    Department of Psychiatry, University of Calgary, Foothills Hospital, Alberta, Calgary, Canada
    Schizophr Res 44:47-56. 2000

Collaborators

Detail Information

Publications58

  1. pmc Reliability and validity of the Calgary Depression Scale for Schizophrenia (CDSS) in youth at clinical high risk for psychosis
    Jean Addington
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada Electronic address
    Schizophr Res 153:64-7. 2014
    ..It is concluded that CDSS is a reliable scale suitable for assessing depression in individuals considered to be at CHR for psychosis. ..
  2. pmc Affect recognition in people at clinical high risk of psychosis
    Jean Addington
    Department of Psychiatry, Faculty of Medicine, University of Calgary, Calgary AB, Canada
    Schizophr Res 140:87-92. 2012
    ..While poorer affect recognition may be associated with vulnerability for psychosis, the current results suggest that it may not be a marker of developing a psychotic illness...
  3. pmc North American Prodrome Longitudinal Study (NAPLS 2): overview and recruitment
    Jean Addington
    Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Schizophr Res 142:77-82. 2012
    ..This paper describes the overall methodology of the NAPLS-2 project and reports on the ascertainment and demographics at the midway point of the study with (360 CHR) and 180 controls...
  4. doi request reprint Prediction and prevention of psychosis in youth at clinical high risk
    Jean Addington
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, T2N 4N1, Canada
    Annu Rev Clin Psychol 8:269-89. 2012
    ..Next, treatment studies are reviewed. The review concludes with a framework for future early identification and treatment studies...
  5. ncbi request reprint Cognitive behavioral therapy in prodromal psychosis
    Jean Addington
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada
    Curr Pharm Des 18:558-65. 2012
    ..Relatively few trials have been completed and this paper reviews the existing trials. Implications of these trials for the treatment of this early phase as well as for designing future studies are discussed...
  6. ncbi request reprint Three-year outcome of treatment in an early psychosis program
    Jean Addington
    Department of Psychiatry, Alberta Centennial Mental Health Research Chair, Calgary, Alberta
    Can J Psychiatry 54:626-30. 2009
    ..Little is known about the follow-up arrangements offered to patients when their time in a FEP comes to an end...
  7. doi request reprint Cognitive-behavioral therapy for individuals at high risk of developing psychosis
    Jean Addington
    Department of Psychiatry, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta T2N4N1, Canada
    J Clin Psychol 65:879-90. 2009
    ..Cognitive behavioral therapy (CBT) has been tested as a potentially effective intervention in this group. Here, we describe two cases that were treated with CBT...
  8. doi request reprint A randomized controlled trial of cognitive behavioral therapy for individuals at clinical high risk of psychosis
    Jean Addington
    Department of Psychiatry, University of Calgary, Alberta, Canada
    Schizophr Res 125:54-61. 2011
    ....
  9. doi request reprint Outcome after discharge from an early psychosis program
    Jean Addington
    Department of Psychiatry, University of Calgary, Calgary, Canada
    Schizophr Res 106:363-6. 2008
    ..Results were that, although there was no further improvement in positive symptoms, there was continued improvement in social functioning and signs of improvement in negative symptoms...
  10. ncbi request reprint Neurocognitive and social functioning in schizophrenia: a 2.5 year follow-up study
    J Addington
    Department of Psychiatry, University of Calgary, Foothills Hospital, Alberta, Calgary, Canada
    Schizophr Res 44:47-56. 2000
    ..Verbal ability, verbal memory and vigilance were significant predictors of social problem solving as assessed by the AIPSS. Results suggest that the association between neurocognition and social functioning remains consistent over time...
  11. doi request reprint Using the brief core schema scales with individuals at clinical high risk of psychosis
    Jean Addington
    Universities of Calgary and Toronto, Canada
    Behav Cogn Psychother 37:227-31. 2009
    ..They provide a more useful measure of schemata about self and others than traditional measures of self-esteem...
  12. pmc At clinical high risk for psychosis: outcome for nonconverters
    Jean Addington
    Centre for Mental Health Research and Education, University of Calgary, 3280 Hospital Dr, NW, Calgary, Alberta T2N 4Z6
    Am J Psychiatry 168:800-5. 2011
    ..Less is known about the outcome among this group, referred to as false positive individuals...
  13. ncbi request reprint Impact of an early psychosis program on substance use
    J Addington
    Department of Psychiatry, The University of Calgary, Alberta, Canada
    Psychiatr Rehabil J 25:60-7. 2001
    ..This paper describes our 2-year experience with an integrated approach to reduce substance use in a specialized treatment program for individuals experiencing a first episode of psychosis...
  14. pmc Cognitive functioning in first-episode schizophrenia
    Jean Addington
    Department of Psychiatry, University of Calgary, Calgary, Alta
    J Psychiatry Neurosci 27:188-92. 2002
    ..To compare the cognitive functioning of a sample of patients experiencing their first episode of schizophrenia with that of patients with an established schizophrenia illness...
  15. doi request reprint Symptom remission in first episode patients
    Jean Addington
    Department of Psychiatry, University of Calgary, Calgary, Canada
    Schizophr Res 106:281-5. 2008
    ....
  16. pmc Negative symptoms in individuals at clinical high risk of psychosis
    Danijela Piskulic
    Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Psychiatry Res 196:220-4. 2012
    ..Thus, early and persistent negative symptoms may represent a vulnerability for risk of developing psychosis...
  17. doi request reprint Predictors of disengagement from treatment in an early psychosis program
    Jacqueline Stowkowy
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada
    Schizophr Res 136:7-12. 2012
    ..The purpose of this study is to determine the rate of disengagement from a three year FE treatment program and the predictors of disengagement...
  18. pmc Early traumatic experiences in those at clinical high risk for psychosis
    Jean Addington
    Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Early Interv Psychiatry 7:300-5. 2013
    ..The purpose of this study was to determine the extent of childhood trauma and bullying in young people at clinical high risk (CHR) of developing psychosis...
  19. ncbi request reprint Social and cognitive functioning in psychosis
    Jean Addington
    Department of Psychiatry, University of Toronto, Toronto, Canada
    Schizophr Res 99:176-81. 2008
    ..This study supports the association between cognition and social functioning but indicates that this is a function of how social functioning is conceptualized and assessed...
  20. pmc Social functioning in individuals at clinical high risk for psychosis
    Jean Addington
    Department of Psychiatry, University of Toronto, Toronto, Canada
    Schizophr Res 99:119-24. 2008
    ....
  21. ncbi request reprint Patterns of premorbid functioning in first-episode psychosis: initial presentation
    Jean Addington
    Department of Psychiatry, University of Calgary, Calgary, AB, Canada
    Schizophr Res 62:23-30. 2003
    ....
  22. pmc Social cognition as a mediator between neurocognition and functional outcome in individuals at clinical high risk for psychosis
    Mariapaola Barbato
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada Electronic address
    Schizophr Res 150:542-6. 2013
    ....
  23. pmc The course of cognitive functioning over six months in individuals at clinical high risk for psychosis
    Mariapaola Barbato
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada
    Psychiatry Res 206:195-9. 2013
    ..Future longitudinal research should address if further decline takes place during the prodrome or after conversion to psychosis...
  24. ncbi request reprint Outcome of a first episode of psychosis in adolescence: a 2-year follow-up
    Alissa Pencer
    Department of Psychology, University of Calgary, Calgary, Alberta, Canada
    Psychiatry Res 133:35-43. 2005
    ..These adolescents are doing relatively well following their first episode and reinforce the need to address cannabis use as an integral part of a comprehensive treatment program...
  25. ncbi request reprint Serum monitoring of antipsychotic drug levels during concomitant administration of sertraline and antipsychotic medication
    Kathleen Pierson
    Department of Psychiatry, University of Calgary, Foothills Hospital, Alberta
    Can J Psychiatry 51:715-8. 2006
    ..To assess whether pharmacokinetic drug interactions occur when sertraline is added to antipsychotic medications...
  26. ncbi request reprint Treating young individuals at clinical high risk for psychosis
    Catherine Marshall
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Early Interv Psychiatry 6:60-8. 2012
    ..Few studies have followed those who do not go on to develop a psychotic illness...
  27. ncbi request reprint The course of cognitive functioning in first episode psychosis: changes over time and impact on outcome
    Jean Addington
    Department of Psychiatry, University of Toronto, Toronto, Canada
    Schizophr Res 78:35-43. 2005
    ..Finally there are implications for improved methodology in the assessment of both cognitive and social functioning...
  28. pmc Perceived discrimination in those at clinical high risk for psychosis
    Majid M Saleem
    Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Early Interv Psychiatry 8:77-81. 2014
    ..The aim of this study was to determine the prevalence of perceived discrimination in a CHR sample and its possible relationship to attenuated positive symptoms and negative self-beliefs...
  29. ncbi request reprint Facial affect recognition: a mediator between cognitive and social functioning in psychosis?
    Jean Addington
    Department of Psychiatry, University of Toronto, Canada
    Schizophr Res 85:142-50. 2006
    ..This 1-year longitudinal study tested the hypothesis that facial affect recognition mediates the relationship between cognitive and social functioning...
  30. ncbi request reprint Cognitive functioning in first episode psychosis: initial presentation
    Jean Addington
    Department of Psychiatry, University of Calgary, Foothills Hospital, Calgary, Canada
    Schizophr Res 62:59-64. 2003
    ..There was no evidence to support differences in cognition among the different schizophrenia spectrum diagnostic groups...
  31. pmc Substance use and cognition in early psychosis
    Alissa Pencer
    Department of Psychology, University of Calgary, Calgary, Alta
    J Psychiatry Neurosci 28:48-54. 2003
    ..To determine the relation between substance use and cognition in individuals experiencing their first episode of psychosis...
  32. ncbi request reprint Diagnostic stability over one year in first-episode psychosis
    Jean Addington
    Department of Psychiatry, University of Toronto, Toronto, Canada
    Schizophr Res 86:71-5. 2006
    ..Schizophrenia can be reliably diagnosed at the initial assessment. There are clinical implications for dealing with the risk of shifting diagnosis for those who present with schizophrenia spectrum and other psychotic disorders...
  33. doi request reprint Using the global functioning social and role scales in a first-episode sample
    Danijela Piskulic
    Department of Psychiatry, University of Calgary, Calgary, AB, Canada
    Early Interv Psychiatry 5:219-23. 2011
    ..The purpose of this study was to determine if these measures would be useful in a first episode population...
  34. ncbi request reprint Insight in early psychosis: a 1-year follow-up
    Alisa R Mintz
    Department of Psychology, University of Calgary, Calgary, Alberta, Canada
    Schizophr Res 67:213-7. 2004
    ..Insight improved significantly over 12 months, and was negatively correlated with both positive and negative symptoms, and positively correlated with depressive symptoms at admission. There were no associations with cognition...
  35. ncbi request reprint The association between social anxiety and social functioning in first episode psychosis
    Marcia Voges
    Department of Psychology, University of Calgary, Canada
    Schizophr Res 76:287-92. 2005
    ..D.=27.42). Results were that negative symptoms and negative self-statements, but not social anxiety, were significant predictors of social functioning. This has implications for addressing these negative cognitions in early psychosis...
  36. pmc Social cognition mediates illness-related and cognitive influences on social function in patients with schizophrenia-spectrum disorders
    Jean Addington
    Department of Psychiatry, University of Toronto, Toronto, Canada
    J Psychiatry Neurosci 35:49-54. 2010
    ..The objective of the current study was to use structural equation modelling to test the hypothesis that the relation between cognitive performance and social function is mediated by patients' social cognitive abilities...
  37. doi request reprint Social cognition and negative symptoms in psychosis
    Danijela Piskulic
    Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary AB, Canada
    Psychiatry Res 188:283-5. 2011
    ....
  38. doi request reprint Exploring the neural correlates of delusions of reference
    Mahesh Menon
    Department of Psychiatry, University of Toronto, Toronto, Canada
    Biol Psychiatry 70:1127-33. 2011
    ..The cortical midline structures (CMS) and subcortical regions, including the amygdala and striatum, are linked with self-reference in healthy adults. Less is known about the neural substrates of altered self-reference in schizophrenia...
  39. doi request reprint Early detection of psychosis: finding those at clinical high risk
    Jean Addington
    Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
    Early Interv Psychiatry 2:147-53. 2008
    ..The aim of this paper was to describe the development of a research clinic for individuals who appear to be at risk of developing a psychosis and the process for educating the community and obtaining referrals...
  40. ncbi request reprint Substance misuse at presentation to an early psychosis program
    Sarah Van Mastrigt
    Dept of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Soc Psychiatry Psychiatr Epidemiol 39:69-72. 2004
    ..The purpose of this study was to examine the prevalence and correlates of substance misuse in individuals with a first episode of psychosis at the time they first present for treatment...
  41. ncbi request reprint The diagnosis and assessment of individuals prodromal for schizophrenic psychosis
    Jean Addington
    Department of Psychiatry, University of Toronto, Toronto, Canada
    CNS Spectr 9:588-94. 2004
    ..This article reviews and describes measures that are currently being used and further developed in order to determine both the diagnostic criteria for the prodromal state and the severity of these putatively prodromal symptoms...
  42. pmc Assessment of premorbid function in first-episode schizophrenia: modifications to the Premorbid Adjustment Scale
    Sarah Van Mastrigt
    Departments of Psychiatry and Psychology, University of Calgary, Calgary, Alta
    J Psychiatry Neurosci 27:92-101. 2002
    ..Finally, we make recommendations to enhance the use of the PAS when evaluating patients who have experienced their first episode of schizophrenia...
  43. doi request reprint The promise of early intervention
    Jean Addington
    Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
    Early Interv Psychiatry 1:294-307. 2007
    ..However, there are still many unanswered issues which are in developing stages or which require further investigation...
  44. pmc Exploratory analysis of social cognition and neurocognition in individuals at clinical high risk for psychosis
    Emma Yong
    Department of Psychology, University of Lethbridge, Alberta, Canada
    Psychiatry Res 218:39-43. 2014
    ..Understanding these early associations may have implications for early intervention. ..
  45. doi request reprint Predictors of a clinical high risk status among individuals with a family history of psychosis
    Jacqueline Stowkowy
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada
    Schizophr Res 147:281-6. 2013
    ..This study compared FHR individuals who also met CHR criteria to FHR individuals who did not on various risk factors, psychopathology and functioning...
  46. ncbi request reprint The role of family work in early psychosis
    Jean Addington
    Department of Psychiatry, University of Toronto, Canada
    Schizophr Res 79:77-83. 2005
    ..Thus, thirdly we will describe a recovery model that has its origins in the Calgary First Episode Program and has since been expanded for use in the First Episode Psychosis Program in Toronto, Canada...
  47. ncbi request reprint Performance measures for early psychosis treatment services
    Donald Addington
    Department of Psychiatry, the University of Calgary in Alberta, Canada
    Psychiatr Serv 56:1570-82. 2005
    ..The requirements of the study were that the processes used to identify measures and gain consensus should be comprehensive, be reproducible, and reflect the perspective of multiple stakeholders in Canada...
  48. pmc Impact of substance use on conversion to psychosis in youth at clinical high risk of psychosis
    Lisa Buchy
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Schizophr Res 156:277-80. 2014
    ..Prediction algorithms incorporating combinations of additional baseline variables known to be associated with psychotic conversion may result in increased predictive power compared with substance use alone. ..
  49. doi request reprint Relationship between relapse and hospitalization in first-episode psychosis
    Donald Emile Addington
    Mathison Centre for Mental Health Research, Department of Psychiatry, University of Calgary, Calgary, Alberta T2N 4Z6, Canada
    Psychiatr Serv 64:796-9. 2013
    ..However, difficulties in reliably measuring relapse diminish its usefulness. Hospitalization is a potential alternative, but its relationship to relapse has not been assessed...
  50. ncbi request reprint Substance use in clinical high risk for psychosis: a review of the literature
    Jean Addington
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Early Interv Psychiatry 8:104-12. 2014
    ..However, little is known about substance use in those who may be in the pre-psychotic phase, that is, those who are putatively prodromal are considered to be at clinical high risk (CHR) of developing psychosis...
  51. pmc Maladaptive schemas as a mediator between social defeat and positive symptoms in young people at clinical high risk for psychosis
    Jacqueline Stowkowy
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada
    Early Interv Psychiatry 6:87-90. 2012
    ..The aim of this study was to examine whether negative beliefs about the self and others link social defeat to early signs of psychosis...
  52. ncbi request reprint Double-blind, placebo-controlled comparison of the efficacy of sertraline as treatment for a major depressive episode in patients with remitted schizophrenia
    Donald Addington
    Departments of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    J Clin Psychopharmacol 22:20-5. 2002
    ..Testing the efficacy of widely accepted but poorly evaluated treatments should be a research priority. Future studies require a larger sample size and longer duration of treatment...
  53. pmc Cyberbullying in those at clinical high risk for psychosis
    Emilie Magaud
    Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
    Early Interv Psychiatry 7:427-30. 2013
    ..Our aim was to examine the prevalence and correlates of cyberbullying in those at clinical high risk (CHR) for psychosis...
  54. doi request reprint Pathways to care for those at clinical high risk of developing psychosis
    Jacqueline Stowkowy
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Early Interv Psychiatry 7:80-3. 2013
    ..Understanding the pathways to care is a prerequisite for early detection in first-episode patients with psychosis. Less in known about the pathways to care for individuals at clinical high risk for psychosis...
  55. pmc Treatment possibilities for individuals at clinical high risk of psychosis
    Kali Brummitt
    Department of Psychology Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
    Early Interv Psychiatry 7:155-61. 2013
    ..The purpose of this study was to undertake a first step in trying to understand the types of treatments young people at clinical high risk of psychosis are interested in pursuing...
  56. pmc Binocular depth perception in individuals at clinical high risk for psychosis: no evidence of dysfunction
    Mariapaola Barbato
    Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary
    Neuropsychology 28:366-72. 2014
    ..The aim of this study was to examine BDP in a young population at clinical high risk (CHR) of developing psychosis to determine whether this dysfunction is present in this potentially prepsychotic period...
  57. ncbi request reprint Youth at ultra high risk for psychosis: using the Revised Network Episode Model to examine pathways to mental health care
    Katherine M Boydell
    Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
    Early Interv Psychiatry 7:170-86. 2013
    ..This paper aims to identify the ways in which youth at ultra high risk for psychosis access mental health services and the factors that advance or delay help seeking, using the Revised Network Episode Model (REV NEM) of mental health care...