Psychology Mental Health

Psychological Disorders: A Practical Introduction to Diagnosis, Causes, and Care

Professor Peter Lambert guides you through the major categories of psychological disorders with clarity, clinical context, and a British academic perspective.

Psychological Disorders: A Practical Introduction to Diagnosis, Causes, and Care logo
Quick Course Facts
16
Self-paced, Online, Lessons
16
Videos and/or Narrated Presentations
5.0
Approximate Hours of Course Media
About the Psychological Disorders: A Practical Introduction to Diagnosis, Causes, and Care Course

This course offers a clear and practical introduction to Psychology as it applies to Psychological Disorders, helping you understand how mental health conditions are identified, explained, and managed in real clinical settings. With a focus on diagnosis, causes, and care, you will build confidence in discussing common disorders and the approaches used to support recovery.

Explore Psychological Disorders Through Clinical Psychology

  • Professor Peter Lambert guides you through the major categories of psychological disorders with clarity, clinical context, and a British academic perspective.
  • Learn how mental disorders are classified, assessed, and differentiated using real-world diagnostic thinking.
  • Develop a stronger understanding of anxiety, mood, psychotic, personality, eating, trauma-related, and neurodevelopmental disorders.
  • Gain insight into evidence-based treatment, stigma, culture, ethics, and the human side of mental health care.

An accessible course on the causes, diagnosis, and treatment of Psychological Disorders.

Across sixteen focused lessons, this course introduces the foundations of abnormal Psychology and shows what counts as a psychological disorder, how clinicians approach assessment, and how symptoms are organised into diagnostic categories. You will examine the major Psychological Disorders encountered in practice, including anxiety disorders, obsessive-compulsive and related disorders, trauma- and stressor-related disorders, depressive disorders, bipolar and related disorders, schizophrenia spectrum and other psychotic disorders, personality disorders, eating disorders, neurodevelopmental disorders, and substance-related and addictive disorders.

The course also explains the biological, cognitive, and social models used to understand causes, along with the role of clinical formulation, risk, and differential diagnosis. You will explore how evidence-based psychological treatments and medication fit into care, while also considering stigma, culture, ethics, and recovery. Professor Peter Lambert guides you through the major categories of psychological disorders with clarity, clinical context, and a British academic perspective, making complex material more approachable and relevant.

By the end of the course, you will be able to talk about Psychology and Psychological Disorders with greater accuracy, recognise key diagnostic patterns, and appreciate how assessment and treatment decisions are made in practice. You will finish with a stronger understanding of mental health care and a more informed, compassionate perspective on people experiencing psychological difficulties.

Course Lessons

Full lesson breakdown

Lessons are organized by topic area and each includes descriptive copy for search visibility and student clarity.

Foundations of Abnormal Psychology

1 lesson

This lesson introduces the core question in abnormal psychology: what counts as a psychological disorder? We distinguish everyday distress from clinically significant disorder, and show why diagnosis …

Systems, Criteria, and Clinical Assessment

1 lesson

Lesson 2: How Mental Disorders Are Classified and Diagnosed

19 min
This lesson explains how mental disorders are classified and diagnosed in clinical practice. You will learn the difference between a diagnostic label and a full clinical picture, how systems such as t…

Fear, Worry, and Avoidance

1 lesson

Lesson 3: Anxiety Disorders in Everyday Clinical Practice

18 min
Anxiety disorders are among the most common presentations in everyday clinical practice, and they often appear first as physical distress, repeated reassurance-seeking, or avoidance rather than a clea…

Intrusions, Rituals, and Compulsions

1 lesson

Lesson 4: Obsessive-Compulsive and Related Disorders

18 min
This lesson introduces obsessive-compulsive and related disorders as conditions in which intrusive thoughts, urges, or images and the behaviours used to neutralise them become persistent, distressing,…

Responses to Extreme Stress

1 lesson

Lesson 5: Trauma- and Stressor-Related Disorders

19 min
This lesson introduces trauma- and stressor-related disorders , focusing on how extreme or prolonged stress can lead to persistent psychological and behavioural difficulties. We distinguish normal str…

Mood, Energy, and Functioning

1 lesson

Lesson 6: Depressive Disorders and Persistent Low Mood

18 min
This lesson introduces depressive disorders as a group of conditions defined by more than ordinary sadness: they involve persistent low mood, loss of interest or pleasure, and meaningful impairment in…

Mood Episodes Across Time

1 lesson

Lesson 7: Bipolar and Related Disorders

18 min
This lesson introduces the bipolar and related disorders group as a pattern of mood episodes across time , rather than a single fixed state. Learners will distinguish manic, hypomanic, and depressive …

Reality Testing and Psychosis

1 lesson

Lesson 8: Schizophrenia Spectrum and Other Psychotic Disorders

20 min
This lesson introduces the schizophrenia spectrum and other psychotic disorders as conditions in which reality testing is significantly impaired. You will learn the core features of psychosis, includi…

Enduring Interpersonal and Emotional Styles

1 lesson

Lesson 9: Personality Disorders: Patterns, Traits, and Difficulties

19 min
Personality disorders are enduring patterns of thinking, feeling, and behaving that create difficulties in relationships, identity, and day-to-day functioning. This lesson introduces the main idea beh…

Food, Weight, and Control

1 lesson

Lesson 10: Eating Disorders and Body Image Disturbance

18 min
This lesson introduces eating disorders as serious mental health conditions in which eating, weight, shape, and control become tightly linked. We will distinguish the main diagnostic patterns, especia…

Early-Onset Differences in Development

1 lesson

Lesson 11: Neurodevelopmental Disorders Across the Lifespan

19 min
This lesson introduces neurodevelopmental disorders as differences in brain and behavioural development that begin early in life and can shape learning, communication, attention, and social functionin…

Dependence, Harm, and Recovery

1 lesson

Lesson 12: Substance-Related and Addictive Disorders

18 min
This lesson introduces substance-related and addictive disorders as conditions in which the use of a substance, or a compulsive behaviour such as gambling, begins to cause clinically significant impai…

Biological, Cognitive, and Social Models

1 lesson

Lesson 13: Causes of Psychological Disorders

20 min
This lesson explains the main ways psychologists think about the causes of psychological disorders : biological, cognitive, and social factors. Rather than treating any one model as sufficient on its …

From Symptoms to Clinical Formulation

1 lesson

Lesson 14: Assessment, Risk, and Differential Diagnosis

19 min
This lesson shows how clinicians move from a list of symptoms to a careful, defensible clinical judgement. It introduces the basic structure of assessment, the meaning of risk, and the logic of differ…

Evidence-Based Care Options

1 lesson

Lesson 15: Psychological Treatments and Medication

20 min
This lesson introduces the main evidence-based treatments used for psychological disorders, with a focus on how clinicians choose between them in practice. You will learn the core differences between …

Human Contexts of Mental Health Care

1 lesson

Lesson 16: Stigma, Culture, Ethics, and Recovery

18 min
This lesson examines the human context of mental health care: how stigma shapes help-seeking, how culture influences diagnosis and treatment, and why ethics matter when care is offered under uncertain…
About Your Instructor
Professor Peter Lambert

Professor Peter Lambert

Professor Peter Lambert guides this AI-built Virversity course with a clear, practical teaching style.