Foundations of clinical psychology and psychopathology. Covers anxiety disorders (generalized anxiety, panic, phobias, OCD, PTSD), depressive disorders (major depression, persistent depressive disorder, bipolar), personality theories (psychodynamic, trait/Big Five, humanistic, social-cognitive), therapeutic approaches (CBT, psychodynamic, humanistic/person-centered, behavioral, pharmacological), the biopsychosocial model, DSM diagnostic framework, and the evidence base for psychological treatments. Use when analyzing psychological disorders, therapeutic approaches, personality assessment, or the intersection of biology, psychology, and social context in mental health.
Clinical psychology applies psychological science to the understanding, assessment, and treatment of psychological disorders. This skill covers the major categories of psychopathology, the dominant personality theories that inform clinical conceptualization, and the evidence-based therapeutic approaches used in practice. The organizing framework is the biopsychosocial model: psychological disorders arise from the interaction of biological vulnerabilities, psychological processes, and social-environmental factors.
Agent affinity: rogers (person-centered therapy, humanistic perspective), hooks (intersectionality in mental health), skinner-p (behavioral interventions, reinforcement-based treatment design)
Concept IDs: psych-psychological-disorders, psych-treatment-approaches, psych-learning-theory, psych-behavior-reinforcement
| # | Domain | Core Questions | Key Frameworks |
|---|---|---|---|
| 1 | Anxiety disorders | What distinguishes normal anxiety from disorder? How do maintenance cycles work? | Cognitive model (Beck), learning theory, neurobiology |
| 2 | Depressive disorders | What causes depression? What maintains it? | Beck's cognitive triad, learned helplessness, monoamine hypothesis |
| 3 | Personality theories | How do we model stable individual differences? | Big Five, psychodynamic, humanistic, social-cognitive |
| 4 | Therapeutic approaches | What works for whom, and how? | CBT, psychodynamic, person-centered, behavioral, pharmacological |
Anxiety is a normal adaptive response to threat. It becomes a disorder when it is disproportionate to the actual threat, persistent, and causes significant distress or functional impairment.
Excessive, uncontrollable worry about multiple life domains (health, finances, relationships, minor matters) occurring more days than not for at least six months. Accompanied by restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and sleep disturbance. The cognitive model (Borkovec, 1994) proposes that worry is a verbal-linguistic avoidance strategy that suppresses more distressing emotional imagery.
Recurrent unexpected panic attacks -- sudden surges of intense fear peaking within minutes, with physical symptoms (pounding heart, shortness of breath, chest pain, dizziness, numbness) and cognitive symptoms (fear of dying, fear of losing control). Clark's (1986) cognitive model: catastrophic misinterpretation of bodily sensations ("my heart is pounding, I must be having a heart attack") creates a positive feedback loop that escalates anxiety into panic.
Marked, disproportionate fear of a specific object or situation (animals, heights, blood, flying, enclosed spaces). Exposure produces immediate anxiety. The person recognizes the fear is excessive but avoids the stimulus anyway. Conditioning models (Mowrer's two-factor theory): phobias are acquired through classical conditioning and maintained through operant conditioning (avoidance reduces anxiety, negatively reinforcing the avoidance behavior).
Obsessions (intrusive, unwanted thoughts) and compulsions (repetitive behaviors performed to reduce obsession-related distress). Common themes: contamination/washing, symmetry/ordering, harm/checking, forbidden thoughts. The cognitive-behavioral model: everyone has intrusive thoughts, but OCD patients interpret them as personally significant, dangerous, or morally unacceptable, leading to compulsive neutralization attempts that paradoxically strengthen the obsession.
Following exposure to actual or threatened death, serious injury, or sexual violence. Symptoms cluster into: (1) intrusion (flashbacks, nightmares), (2) avoidance (of trauma reminders), (3) negative alterations in cognition/mood (guilt, detachment, inability to experience positive emotions), (4) hyperarousal (exaggerated startle, hypervigilance, sleep disturbance). Ehlers and Clark (2000) cognitive model: PTSD persists when the trauma memory is poorly integrated and the individual appraises the trauma or its aftermath in an excessively negative way.
Five or more symptoms during a two-week period, including at least depressed mood or loss of interest/pleasure: weight/appetite change, insomnia or hypersomnia, psychomotor agitation or retardation, fatigue, worthlessness/guilt, concentration difficulty, suicidal ideation. Lifetime prevalence approximately 17% in the US. Women are affected at roughly twice the rate of men.
Aaron Beck (1967) proposed that depression is maintained by negative automatic thoughts in three domains:
These thoughts arise from underlying schemas (core beliefs) formed through early experience, activated by stressful life events.
Seligman (1975) showed that animals exposed to inescapable shock later failed to escape even when escape was possible. The reformulated model (Abramson, Seligman, & Teasdale, 1978) emphasized attributional style: depression-prone individuals attribute negative events to internal ("it's my fault"), stable ("it will always be this way"), and global ("it affects everything") causes.
The monoamine hypothesis proposes that depression results from deficiency in serotonin, norepinephrine, and/or dopamine. SSRI antidepressants increase synaptic serotonin. However, the monoamine hypothesis is oversimplified: SSRIs increase serotonin within hours but take weeks to produce clinical improvement, suggesting downstream neuroplastic changes are the actual mechanism. The neurotrophin hypothesis (Duman et al., 1997) implicates reduced BDNF (brain-derived neurotrophic factor) and hippocampal atrophy, reversed by antidepressants and exercise.
Bipolar I: at least one manic episode (elevated/expansive/irritable mood, decreased sleep need, grandiosity, pressured speech, risky behavior, lasting at least one week). Bipolar II: hypomania (less severe, shorter duration) plus major depressive episodes. Lithium remains the gold-standard mood stabilizer. Heritability is among the highest of any psychiatric disorder (~85%).
Freud proposed three structures (id, ego, superego), psychosexual stages, and defense mechanisms (repression, projection, displacement, rationalization, sublimation). Modern psychodynamic theory (object relations, attachment theory) has moved beyond Freud's drive theory but retains the emphasis on unconscious processes, early relationships, and internal conflict. Defense mechanisms have been empirically validated as a hierarchical maturity continuum (Vaillant, 1977).
The Five-Factor Model (Costa & McCrae, 1992) identifies five broad, stable, partially heritable personality dimensions:
| Factor | High pole | Low pole |
|---|---|---|
| Openness | Curious, creative, intellectually adventurous | Conventional, practical, routine-preferring |
| Conscientiousness | Organized, disciplined, achievement-oriented | Disorganized, impulsive, careless |
| Extraversion | Outgoing, energetic, sociable | Quiet, reserved, solitary |
| Agreeableness | Warm, cooperative, trusting | Competitive, skeptical, antagonistic |
| Neuroticism | Anxious, moody, emotionally reactive | Calm, stable, resilient |
The Big Five predict job performance (conscientiousness), relationship quality (agreeableness, neuroticism), mental health (neuroticism is the strongest personality predictor of depression and anxiety), and longevity (conscientiousness).
Rogers (1961) proposed that psychological health requires congruence between the self-concept and experience. Conditions of worth ("I am lovable only if I achieve") create incongruence. Unconditional positive regard -- acceptance without judgment -- enables the natural growth tendency (the actualizing tendency) to unfold. Maslow's hierarchy of needs (physiological, safety, belonging, esteem, self-actualization) provides a motivational framework, though the strict hierarchical ordering has limited empirical support.
Bandura (1986) emphasized reciprocal determinism: behavior, personal factors (cognitions, beliefs), and environment continuously influence each other. Self-efficacy -- the belief that one can successfully perform a specific behavior -- is the strongest predictor of behavior change. Self-efficacy is built through mastery experiences, vicarious learning, verbal persuasion, and physiological/emotional states.
The most extensively researched psychotherapy. CBT targets the reciprocal relationship between thoughts, emotions, and behaviors. Core techniques:
CBT has strong evidence for depression, anxiety disorders, OCD, PTSD, eating disorders, insomnia, and chronic pain. Typical course: 12-20 sessions.
Explores unconscious conflicts, early relationship patterns, and defense mechanisms. Modern brief psychodynamic therapy (Shedler, 2010) focuses on recurring relationship patterns, transference (the patient relates to the therapist as they relate to significant others), and increasing awareness of previously unconscious emotional experience. Meta-analyses show effect sizes comparable to CBT for depression and anxiety, with evidence of continued improvement after treatment ends.
The therapeutic relationship is the mechanism of change. Three core conditions:
Rogers argued that these conditions are both necessary and sufficient for therapeutic change. Modern research supports their importance as common factors across all therapeutic approaches, though few researchers accept the "sufficient" claim.
Direct application of learning principles:
| Class | Mechanism | Primary use | Key considerations |
|---|---|---|---|
| SSRIs (fluoxetine, sertraline) | Increase synaptic serotonin | Depression, anxiety, OCD | 2-4 week onset; discontinuation syndrome |
| SNRIs (venlafaxine, duloxetine) | Increase serotonin and norepinephrine | Depression, anxiety, chronic pain | Dose-dependent effects |
| Benzodiazepines (diazepam, lorazepam) | Enhance GABA activity | Acute anxiety, panic | Rapid onset; dependence risk; not for long-term use |
| Lithium | Multiple mechanisms (poorly understood) | Bipolar disorder | Narrow therapeutic window; requires blood monitoring |
| Antipsychotics (haloperidol, risperidone) | Block dopamine D2 receptors | Schizophrenia, mania | Typical vs. atypical; metabolic side effects |
George Engel (1977) proposed that all illness -- including mental illness -- is best understood as the product of biological, psychological, and social factors interacting. This model rejects both pure biomedical reductionism ("depression is a chemical imbalance") and pure psychological reductionism ("depression is just negative thinking"). Effective treatment often combines pharmacological and psychological approaches.
The Dodo bird verdict (Luborsky, Singer, & Luborsky, 1975; Wampold, 2001) holds that all bona fide psychotherapies produce roughly equivalent outcomes. The common factors explanation: therapeutic alliance, hope/expectancy, and a plausible treatment rationale account for most of the variance. Specific techniques contribute additional, smaller effects. This remains controversial -- CBT advocates argue that specific factors matter for specific disorders (e.g., exposure for OCD), and the Dodo bird finding may reflect insensitivity of outcome measures rather than genuine equivalence.