Introduction: Mental health and mental illnesses
### Study Notes: Understanding Clinical Psychology (Dr. Roberto Gutierrez)
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## 1. Introduction: Mental Health and Mental Illness
- Global Impact of Mental Health Issues:
- Mental health and behavioral disorders (e.g., depression, anxiety) are leading causes of disability worldwide.
- Over 40 million years of disability occur in people aged 20-29 (Lozano et al., 2012).
- Major depression ranks as the second leading cause of disability (Whiteford et al., 2013).
- Around 17% of people experience a common mental health problem weekly; approximately 25% will experience one in their lifetime.
- Post-COVID Mental Health Concerns:
- The pandemic has exacerbated mental health challenges, heightening the need for psychological services.
### Definition of Mental Illness (WHO):
- Mental disorders are characterized by abnormal thoughts, emotions, behaviors, and social relationships.
- Includes conditions like depression, bipolar disorder, schizophrenia, dementia, and autism.
### The Role of Clinical Psychologists:
- Aim: To alleviate distress, promote well-being, and help individuals engage in meaningful activities.
- Work across various settings, including hospitals, community mental health teams, schools, prisons, and social services.
- Collaboration with other professionals is crucial in patient management.
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## 2. Historical Explanations of Mental Health
### Three Main Approaches:
1. Supernatural:
- Early civilizations attributed mental illness to supernatural entities.
- Treatment often involved rituals like exorcism, conducted by shamans or priests.
2. Biological:
- Focused on bodily malfunctions, such as imbalances in the brain or organs.
- Hippocrates linked mental illness to imbalances in bodily fluids (humors).
- Hysteria was once thought to be caused by a wandering uterus.
3. Psychological:
- Mental illness stems from dysfunctional psychological processes (e.g., mood, emotions, personality).
- Focus on the interaction between mind, body, and external environment.
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## 3. Key Psychological Theories
### Psychoanalysis (Sigmund Freud):
- Personality is a dynamic process resulting from conflicts between three components:
1. ID (unconscious desires; seeks pleasure without regard for consequences).
2. Superego (moral and social ideals; internalized norms from society and family).
3. Ego (mediator between ID and Superego; balances desires with reality).
- Personality Development: Shaped by early experiences, with unconscious processes playing a key role in behavior.
### Limitations of Psychoanalysis:
- Difficult to empirically test.
- Involves complex, often inconsistent terminology.
- Cultural and social differences are often overlooked.
### Humanistic Theories (Carl Rogers, Abraham Maslow):
- Carl Rogers:
- Proposed a client-centered approach focusing on subjective experiences.
- Believed people are inherently good and motivated to grow in a nurturing environment.
- Maslow:
- Developed the hierarchy of needs, emphasizing self-actualization as the ultimate goal of human motivation.
### Key Concepts:
- Self-actualization: Fulfilling one’s potential.
- Incongruence: Discrepancy between an individual’s perceived self and their true self, which can lead to psychological problems.
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## 4. Behaviourism and Learning Theories
### Behaviorism:
- Focuses on observable behaviors, asserting that mental processes are not scientifically studyable.
- Learning is the key process through which behavior is acquired and modified.
### Classical Conditioning (Ivan Pavlov):
- A neutral stimulus becomes associated with a response through repeated pairing with another stimulus.
- Example: Pavlov’s dogs learned to salivate in response to a bell after it was repeatedly paired with food.
### Operant Conditioning:
- Behavior is influenced by rewards (positive reinforcement) or punishments (negative reinforcement).
### Social Learning Theory (Albert Bandura):
- Behavior is learned through observation and imitation of others.
- The Bobo Doll experiment demonstrated that children mimicked aggressive behavior after watching adults be rewarded for similar actions.
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## 5. Diagnosis and Treatment of Mental Illness
### Diagnosis Systems:
- DSM-5 (Diagnostic and Statistical Manual of Mental Disorders) and ICD-10/ICD-11 (International Classification of Diseases) provide frameworks for categorizing and diagnosing mental disorders.
- These systems help with communication, guiding treatment, and predicting outcomes.
### Why Diagnose?:
- Diagnosis helps reduce stigma, provides structure for understanding experiences, and informs treatment approaches.
### Concerns about Classification:
- Some argue that categorizing mental disorders is unnatural and diminishes individuality.
- The focus on medical models may undermine a more person-centered approach.