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Personality Disorders — Clusters, Causes, and Evidence-Based Treatments Explained | Chapter 11 of Essentials of Abnormal Psychology Personality disorders are enduring, maladaptive patterns of thinking, feeling, and behaving that emerge in adolescence or early adulthood and cause significant impairment. Chapter 11 of Essentials of Abnormal Psychology organizes these disorders into three DSM-5 clusters—A, B, and C—examines their prevalence and risk factors, and reviews effective treatment approaches. This guide will help you master these complex disorders and prepare for your exams. Watch the Chapter Summary Prefer audio-visual learning? Watch the full Chapter 11 summary below and subscribe to Last Minute Lecture for more chapter guides. Overview of Personality Disorders Personality disorders affect up to 10% of adults and often co-occur with other mental health conditions. The DSM-5’s categorical approach places them into three clusters based on shared traits, though a d...

Third-Wave Cognitive & Behavioral Therapies — Chapter 11 Summary from Systems of Psychotherapy Chapter 11 of Systems of Psychotherapy: A Transtheoretical Analysis introduces Third-Wave Cognitive and Behavioral Therapies, a cutting-edge movement in psychotherapy. These approaches—Acceptance and Commitment Therapy (ACT), Dialectical Behavior Therapy (DBT), and Mindfulness-Based Cognitive Therapy (MBCT)—blend traditional cognitive-behavioral strategies with Eastern-inspired mindfulness and acceptance practices. This expanded summary, based on our podcast breakdown of Chapter 11 , explores their foundational principles, therapeutic techniques, and real-world impact. Prefer to watch? Check out the chapter video above, and subscribe to Last Minute Lecture for more psychology textbook summaries! Overview of Third-Wave Therapies Third-wave therapies represent an evolution of cognitive-behavioral approaches, emphasizing not only behavior change and cognitive restructuring b...