Conceptions of Mental Illness

Conceptions of Mental Illness

Overview

  • Conceptions of Mental Illness:- Defining

    • Historical conceptions

    • Psychiatric diagnosis

Defining Mental Illness

  • Mental illness is defined differently based on:- Statistical rarity

    • Biological dysfunction

    • Impairment

    • Subjective distress

    • Societal disapproval

Historical Conceptions

  • Middle Ages, Renaissance, Moral treatment, Modern Era. Chart showing state and county mental hospitals, private psychiatric hospitals, and Non-Federal general hospitals with separate psychiatric services

Psychiatric Diagnosis

  • Diagnostic and Statistical Manual of Mental Disorders.

  • 18 different classes of disorders.

  • Includes diagnostic criteria and decision rules.

  • Prevalence.

Purposes of Psychiatric Diagnosis

  • Pinpoint the psychological problem.

  • Facilitate communication among mental health professionals.

Goals of a Classification System

  • RELIABILITY: Specific subgroups of symptoms or dimensions of behavior identifiable by independent observers based on operational definitions.

  • VALIDITY: Value in identifying subgroups or dimensions (e.g., different causes, prognosis, or treatments).

Criteria for Valid Diagnosis

  • Distinguishes the diagnosis from similar diagnoses.

  • Symptoms cannot be accounted for by other diagnoses.

  • Predicts performance on laboratory tests (e.g., poor concentration).

  • Predicts family history of psychiatric disorders (e.g., higher likelihood of relatives with ADHD).

  • Predicts natural history (e.g., continued difficulties with inattention).

  • Predicts response to treatment (e.g., likelihood of responding positively to stimulant medications).

Common Misconceptions Regarding Diagnosis

  • Pigeonholing: The belief that psychiatric diagnoses oversimplify individuals into rigid categories, ignoring the complexity of their experiences and symptoms.

  • Unreliable: The perception that psychiatric diagnoses lack consistency and validity, leading to doubts about their accuracy and usefulness.

  • Stigmatizing: The idea that receiving a mental health diagnosis leads to social stigma and discrimination, which can discourage individuals from seeking help.

  • Invalid: The argument that psychiatric diagnoses do not adequately capture the nuanced and varied nature of mental health conditions, raising questions about their overall effectiveness.

Criticisms of Psychiatric Diagnosis

  • High level of comorbidity (co-occurrence of two or more diagnoses).

  • Medicalizes normality.

  • Reliance on categorical rather than dimensional model.- Categorical: differs in kind.

    • Dimensional: differs in degree.

  • Vulnerable to political and social influences.