disorders

Understanding Psychological Disorders

  • Psychological disorders refer to a broad range of mental health issues that primarily impact an individual's emotional and psychological well-being.

  • Defined as patterns of behavioral or psychological symptoms that cause significant distress or impairment in personal, social, or occupational functioning, these disorders are prevalent and complex.

Prevalence of Psychological Disorders

  • Lifetime Prevalence: Approximately 51% of individuals may experience a psychological disorder at some point in their lives (Kessler et al., 2005).

  • Annual Prevalence in Canada: Roughly 20% of the population deals with some form of mental illness or psychological issues every year.

  • Economic Impact: The financial cost attributed to mental illness in Canada exceeds $50 billion annually, factoring in lost productivity and healthcare services.

Etiology of Psychological Disorders

  • Complex Interaction: Most psychological disorders arise from a combination of biological and environmental factors.

  • Vulnerability Factors: These factors can include:

    • Genetic predispositions

    • Biological characteristics (e.g., brain chemistry, hormones)

    • Psychological traits (e.g., resilience, coping styles)

    • Historical maladaptive learning

    • Social support networks

  • Current Vulnerability and Stressors: Stressors may include economic hardship, trauma, interpersonal losses, and occupational stress, all of which can exacerbate existing vulnerabilities.

Impact of Mental Health Issues

  • In any given week, at least 500,000 employed Canadians are unable to work due to mental health concerns.

  • Significant portions of the workforce are affected:

    • Approximately 355,000 disability claims arise from mental or behavioral disorders.

    • Roughly 175,000 full-time employees take time off work due to mental illness issues.

Coping During COVID-19 pandemic

  • Research Summary: Surveys conducted among youths (ages 14-29) starting in April 2020 revealed drastic increases in mental health concerns due to COVID-19.

  • Findings:

    • By April 2020, over 50% of respondents reported higher levels of anxiety and related concerns.

    • Youths with pre-existing physical health problems and gender diverse individuals reported more significant challenges.

  • Unmet Needs: 30% indicated a need for mental health or substance use services that were not being met.

Mental Health Trends Over Time

  • Youth Responses: Surveys showed fluctuations in mental health:

    • Following initial increases in issues, many youths felt improvements during summer, then deterioration in fall and winter due to school and seasonal factors.

  • Demographic Variances: Girls and gender-expansive youth reported more mental health issues than boys, with urban dwellers facing more challenges than those in rural settings.

Diagnosis of Psychological Disorders

  • Diagnostic Process: Diagnosing psychological disorders involves distinguishing one disorder from another, utilizing standardized systems such as the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders).

  • Disorder Classification: The DSM-5 categorizes disorders into 21 classes, which share common symptomatic features. Key categories include:

    • Anxiety Disorders

    • Mood Disorders

    • Personality Disorders

    • Psychotic Disorders

    • Neurodevelopmental Disorders

Anxiety Disorders Overview

  • Generalized Anxiety Disorder (GAD): Characterized by persistent, excessive worry about various aspects of life for at least 6 months. Symptoms include:

    • Restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and sleep disturbances.

  • Panic Disorder: Involves recurrent and unexpected panic attacks marked by distressing symptoms like heart palpitations, sweating, or trembling.

  • Phobias: Persistent fear of specific objects or situations that are disproportionate to the actual danger.

Obsessive-Compulsive Disorder (OCD)

  • Nature of OCD: Symptomatic features include obsessions (intrusive thoughts causing anxiety) and compulsions (ritualistic actions to reduce anxiety).

  • Prevalence: Affecting 2-3% of the population, OCD often manifests through four main types of symptoms:

    • Obsessions & Checking

    • Symmetry & Order

    • Cleanliness & Washing

    • Hoarding

Mood Disorders

  • Bipolar Disorders: Characterized by alternating episodes of mania and depression. Bipolar I and II affect approximately 1% of the population.

  • Major Depressive Disorder (MDD): Significant depressive episodes lasting about 6 months, with a lifetime prevalence of 13-16%.

    • Diagnostic criteria typically include symptoms like depressed mood, loss of interest, sleep disturbance, and significant changes in appetite or weight.

Etiology of Mood Disorders

  • Factors influencing mood disorders include:

    • Biological factors: neurochemical imbalances, genetic predisposition.

    • Environmental stressors: adverse childhood experiences, trauma.

    • Cognitive styles: negative thinking patterns and explanatory styles, influencing vulnerability to mood disorders.

Exam Information

  • Date: April 17th, 9am-12pm, Kingsmill Room.

  • Format: 52 multiple choice questions plus short answer questions covering various modules (totaling 68 points per module).

  • Key Suggestions for Studying: Focus on understanding key terms and concepts from each module, and review diagnostic criteria for various psychological disorders. Emphasize the interplay of biological, psychological, and environmental factors in mental health issues.