Summary of "Psychological Disorders: Crash Course Psychology #28"

Historical context and reform

Nellie Bly (Elizabeth Cochran) in 1887 feigned mental illness to expose conditions in asylums. Her report, “Ten Days in a Mad House,” prompted reform.
David Rosenhan’s 1973 study, “On Being Sane in Insane Places,” tested psychiatric diagnosis by sending healthy “pseudopatients” into hospitals. His results raised questions about psychiatric labeling and diagnostic reliability.

Eight mentally healthy associates (including Rosenhan) presented to psychiatric hospitals reporting they had heard voices.
After admission, they stopped simulating symptoms and behaved normally.
Outcomes:
- Average hospital stay was about 19 days (one stayed 52 days).
- All were prescribed psychotropic medications (which they discarded).
- Discharge diagnoses included labels such as “paranoid schizophrenia in remission.”
Rosenhan argued institutions tended to treat mental illness as an enduring trait rather than a reversible state.

Rosenhan informed a teaching hospital that he would send pseudopatients. Hospital staff identified 41 of 193 new patients as possible imposters.
Rosenhan had actually sent none. This demonstrated how expectations and context shape diagnostic judgments.

Overall conclusion: diagnostic practices can reflect situational and contextual judgments as much as — or more than — patients’ true mental states.

Clinicians typically define disorders as patterns of thoughts, feelings, or behaviors that are:

Notes:

Cultural and situational context matters: what’s deviant in one setting may be normal in another.
Distinguish normal variation and culturally sanctioned experiences (e.g., spiritual practices) from clinically significant disorders.

Emerged as clinicians linked some mental symptoms to physiological causes (for example, late-stage syphilis producing neurological/psychiatric symptoms).
Views disorders as illnesses with physiological bases that can be diagnosed and treated.
Helped move practice away from simply confining people who seemed “odd.”

Current preferred, holistic model integrating:
- Biological factors (genetics, brain chemistry)
- Psychological factors (stress, trauma, learning, memories)
- Social and cultural influences (norms, expectations, resources)
Recognizes some conditions may be curable, others manageable, and that cultural change can alter whether a behavior is seen as a disorder.

The Diagnostic and Statistical Manual of Mental Disorders (DSM), published by the American Psychiatric Association, standardizes diagnostic criteria.
- First edition: 1952
- Current edition: DSM-5 (2013)
The DSM is intended to evolve with research and cultural change. Examples:
- Homosexuality was classified as pathology in early DSM editions and removed in 1973.
- Changes from DSM-IV to DSM-5 include refined PTSD criteria and the creation of Disruptive Mood Dysregulation Disorder (to address over-diagnosis of childhood bipolar disorder).
- New or proposed categories reflect changing behaviors/risks (e.g., Gambling Disorder, Internet Gaming Disorder).
Criticisms and risks:
- Potential for over- or mis-diagnosis and over-treatment driven by diagnostic criteria and labeling.
- Labels can cause stigma and alter perceptions by clinicians, institutions, and society.
- Classification choices have practical consequences for treatment access, insurance, and legal decisions.

Global burden: the World Health Organization (2010) estimated about 450 million people worldwide have a mental or behavioral disorder.
Public stereotypes (media, fiction) foster stigma and misunderstanding; careful definitions and context-sensitive practice are essential.

Diagnosing mental disorders is complex and context-dependent; history shows both progress and persistent problems.
A biopsychosocial perspective is more comprehensive than a purely medical model.
Diagnostic manuals (DSM) are powerful and changeable tools that improve consistency but carry risks (mislabeling, stigma, overdiagnosis).
Critical thinking and cultural sensitivity are necessary when defining, diagnosing, and treating psychological disorders.

Historical figures and researchers:
- Elizabeth Cochran (Nellie Bly)
- David Rosenhan
Organizations and reports:
- World Health Organization (WHO) — 2010 report
- American Psychiatric Association (DSM)
Video production credits / contributors:
- Writer: Kathleen Yale
- Editor: Blake de Pastino
- Consultant: Dr. Ranjit Bhagwat
- Director and Editor: Nicholas Jenkins
- Script Supervisor and Sound Designer: Michael Aranda
- Graphics team: Thought Cafe