This chapter explores the fascinating and complex world of psychological disorders. You will learn about the concepts and classifications of abnormal behavior, the factors that contribute to it, and the various models that explain psychological disorders. The chapter covers major psychological disorders such as anxiety, mood disorders, schizophrenia, and personality disorders. Understanding these topics will help you grasp the nuances of human behavior and mental health, providing a foundation for further study in psychology.
What you'll learn
1Understand the basic issues in abnormal behavior and the criteria used to identify such behaviors
2Appreciate the factors that cause abnormal behavior
3Explain the different models of abnormal behavior
4Describe the major psychological disorders
5Identify the symptoms and characteristics of various psychological disorders
6Explore the therapeutic approaches and mental health management strategies
Chapter at a glance
01Understanding Psychological Disorders: Concepts and Classification
02Anxiety Disorders and Obsessive-Compulsive Disorder
03Somatoform and Dissociative Disorders
04Mood Disorders: Depression and Bipolar Disorder
05Schizophrenia and Other Psychotic Disorders
06Personality Disorders and Substance-Related Disorders
07Therapeutic Approaches and Mental Health Management
Detailed chapter notes
01
Understanding Psychological Disorders: Concepts and Classification
Psychological disorders, also known as mental disorders, refer to patterns of behavior or psychological symptoms that impact multiple areas of life. These disorders are often characterized by abnormal thoughts, emotions, and behaviors. The study of psychological disorders, known as abnormal psychology, focuses on maladaptive behavior, its causes, consequences, and treatment. Psychological disorders are classified based on shared characteristics, which helps professionals communicate and understand these conditions better. The classification systems used include the International Classification of Diseases (ICD-10) by the World Health Organization and the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) by the American Psychiatric Association.
Psychological disorders involve abnormal thoughts, emotions, and behaviors
Abnormal psychology studies maladaptive behavior and its treatment
Classification systems like ICD-10 and DSM-5 help categorize psychological disorders
02
Anxiety Disorders and Obsessive-Compulsive Disorder
Anxiety disorders are the most common category of psychological disorders. They involve excessive and persistent feelings of anxiety and fear that interfere with daily life. Generalized anxiety disorder is characterized by prolonged, vague, and intense fears without a specific object. Panic disorder involves recurrent anxiety attacks with intense terror and physiological symptoms. Specific phobias are irrational fears related to specific objects, interactions, or situations. Obsessive-compulsive disorder (OCD) involves obsessive thoughts and compulsive behaviors that the individual feels compelled to perform. These disorders can significantly impact a person's quality of life and functioning.
Anxiety disorders include generalized anxiety, panic disorder, and specific phobias
OCD involves obsessive thoughts and compulsive behaviors
These disorders can interfere with daily life and functioning
03
Somatoform and Dissociative Disorders
Somatoform disorders involve physical symptoms that are not fully explained by a general medical condition or the direct effects of a substance. These symptoms are linked to psychological factors. Somatic symptom disorder involves persistent body-related symptoms with significant distress and impairment. Illness anxiety disorder involves excessive worry about having a serious illness. Dissociative disorders involve a disruption in the normal integration of consciousness, memory, identity, emotion, body representation, motor control, and behavior. Dissociative amnesia involves memory loss that is not due to a general medical condition. Dissociative identity disorder, previously known as multiple personality disorder, involves the presence of two or more distinct personality states.
Somatoform disorders involve physical symptoms linked to psychological factors
Dissociative disorders involve disruptions in consciousness, memory, and identity
These disorders can cause significant distress and impairment
04
Mood Disorders: Depression and Bipolar Disorder
Mood disorders involve disturbances in emotional states. Major depressive disorder is characterized by a persistent feeling of sadness and a loss of interest in daily activities. Symptoms include changes in appetite, sleep, and concentration, as well as feelings of worthlessness and suicidal thoughts. Bipolar disorder involves episodes of depression alternating with episodes of mania or hypomania. Manic episodes involve elevated mood, increased activity, and impulsive behavior. These mood disorders can significantly impact a person's quality of life and functioning, and they often require professional treatment.
Mood disorders involve disturbances in emotional states
Major depressive disorder is characterized by persistent sadness and loss of interest
Bipolar disorder involves episodes of depression and mania or hypomania
05
Schizophrenia and Other Psychotic Disorders
Schizophrenia is a severe mental disorder characterized by distortions in thinking, perception, emotions, and behavior. Symptoms include delusions, hallucinations, disorganized speech, and motor abnormalities. Schizophrenia is often a chronic and debilitating disorder that requires long-term treatment. Other psychotic disorders involve symptoms similar to schizophrenia but may have different causes or durations. These disorders can significantly impact a person's ability to function in daily life and often require comprehensive treatment approaches.
Schizophrenia involves distortions in thinking, perception, emotions, and behavior
Symptoms include delusions, hallucinations, and disorganized speech
These disorders can be chronic and debilitating, requiring long-term treatment
06
Personality Disorders and Substance-Related Disorders
Personality disorders involve enduring patterns of thinking, feeling, and behaving that deviate from cultural expectations and cause distress or impairment. These disorders are often characterized by rigid and inflexible patterns that lead to significant problems in relationships and functioning. Substance-related disorders involve the harmful use of substances like alcohol, drugs, or medications. These disorders can lead to significant impairment in various areas of life, including health, social relationships, and occupational functioning. Treatment for these disorders often involves a combination of therapy and medication.
Personality disorders involve enduring patterns of thinking, feeling, and behaving
Substance-related disorders involve harmful use of substances
Treatment often involves a combination of therapy and medication
07
Therapeutic Approaches and Mental Health Management
Therapeutic approaches for psychological disorders aim to alleviate symptoms, improve functioning, and enhance the quality of life. Common therapeutic approaches include psychotherapy, medication, and a combination of both. Psychotherapy involves talking with a mental health professional to explore and resolve issues. Medication can help manage symptoms and improve overall functioning. Mental health management involves ongoing care and support to maintain mental well-being. It is important to seek professional help when dealing with psychological disorders to ensure effective treatment and support.
Therapeutic approaches include psychotherapy, medication, and a combination of both
Mental health management involves ongoing care and support
Seeking professional help is crucial for effective treatment and support
Want the complete chapter resources?Topic notes, quizzes and flashcards for Psychological Disorders.
Which of the following is NOT one of the 'four Ds' used to define psychological disorders?
ADeviance
BDistress
CDysfunction
DDependence
Show answer
Answer: (D) Dependence
The 'four Ds' are deviance, distress, dysfunction, and danger. Dependence is not one of them.
Question 02
Which neurotransmitter has been linked to low activity in anxiety disorders?
ADopamine
BSerotonin
CGamma aminobutyric acid (GABA)
DAcetylcholine
Show answer
Answer: (C) Gamma aminobutyric acid (GABA)
According to the NCERT text, anxiety disorders have been linked to low activity of the neurotransmitter gamma aminobutyric acid (GABA).
Question 03
Which of the following is a key characteristic of somatoform disorders?
APhysical symptoms without a medical cause
BLoss of memory due to trauma
CHallucinations and delusions
DPersistent worry about future events
Show answer
Answer: (A) Physical symptoms without a medical cause
Somatoform disorders are characterized by physical symptoms that cannot be explained by any underlying medical condition or injury.
Question 04
Which neurotransmitter is linked to low activity in depression?
ADopamine
BSerotonin
CGamma aminobutyric acid (GABA)
DAcetylcholine
Show answer
Answer: (B) Serotonin
According to the NCERT text, depression has been linked to low activity of serotonin.
Question 05
Which of the following is a positive symptom of schizophrenia?
AAvolition
BAlogia
CDelusions of persecution
DFlat affect
Show answer
Answer: (C) Delusions of persecution
Positive symptoms are 'pathological excesses' such as delusions, hallucinations, and disorganised thinking. Delusions of persecution are a common positive symptom in schizophrenia.
Ready for more practice?Unlock the full quiz for this chapter.
Q1. Explain the 'four Ds' used to define psychological disorders.
Show model answer
Model answer
Psychological disorders are defined using the 'four Ds': deviance (behaviour is different, extreme, or bizarre), distress (unpleasant and upsetting to the person or others), dysfunction (interferes with daily activities), and danger (poses risk to self or others). These criteria help identify abnormal behaviour.
Sample question3 marks
Q2. What is the difference between somatic symptom disorder and illness anxiety disorder?
Show model answer
Model answer
In somatic symptom disorder, the person experiences actual body-related symptoms (e.g., pain) that cause distress, even if no medical condition is present. In illness anxiety disorder, the person worries persistently about developing a serious illness but may not have physical symptoms; the anxiety about health is the main feature.
Sample question3 marks
Q3. What is major depressive disorder? List any two symptoms.
Show model answer
Model answer
Major depressive disorder is defined as a period of depressed mood and/or loss of interest or pleasure in most activities. Symptoms include change in body weight, constant sleep problems, tiredness, inability to think clearly, agitation, greatly slowed behaviour, thoughts of death and suicide, excessive guilt or feelings of worthlessness.
Sample question3 marks
Q4. Differentiate between positive and negative symptoms of schizophrenia with suitable examples.
Show model answer
Model answer
Positive symptoms are pathological excesses or bizarre additions to behaviour, such as delusions (false beliefs), hallucinations (false perceptions), and disorganised thinking. Negative symptoms are pathological deficits, such as alogia (poverty of speech), blunted affect (reduced emotional expression), and avolition (inability to initiate goal-directed activity).
Sample question3 marks
Q5. What is meant by substance-related and addictive disorders? Explain the effects of alcohol abuse.
Show model answer
Model answer
Substance-related and addictive disorders involve maladaptive behaviours resulting from regular use of substances like alcohol, cocaine, tobacco, and opioids, which alter thinking, feeling, and behaviour. Alcohol abuse leads to tolerance, withdrawal, and interference with social and occupational functioning. It damages physical health, impairs judgment and motor skills, and increases risks of accidents and psychological problems in children.
Want more questions with answers?Get the full practice set for this chapter.
The main types of anxiety disorders include generalized anxiety disorder, panic disorder, and specific phobias. Generalized anxiety disorder involves prolonged, vague, and intense fears without a specific object. Panic disorder involves recurrent anxiety attacks with intense terror and physiological symptoms. Specific phobias are irrational fears related to specific objects, interactions, or situations.
How do somatoform and dissociative disorders differ?
Somatoform disorders involve physical symptoms that are not fully explained by a general medical condition or the direct effects of a substance, and these symptoms are linked to psychological factors. Dissociative disorders involve a disruption in the normal integration of consciousness, memory, identity, emotion, body representation, motor control, and behavior.
What are the symptoms of major depressive disorder?
Symptoms of major depressive disorder include a persistent feeling of sadness, loss of interest in daily activities, changes in appetite, sleep, and concentration, feelings of worthlessness, and suicidal thoughts. These symptoms can significantly impact a person's quality of life and functioning.
What are the key features of schizophrenia?
Schizophrenia is characterized by distortions in thinking, perception, emotions, and behavior. Key features include delusions, hallucinations, disorganized speech, and motor abnormalities. These symptoms can significantly impact a person's ability to function in daily life and often require comprehensive treatment approaches.
How are personality disorders diagnosed?
Personality disorders are diagnosed based on enduring patterns of thinking, feeling, and behaving that deviate from cultural expectations and cause distress or impairment. Diagnosis involves a thorough evaluation by a mental health professional, including a clinical interview and assessment of symptoms.
What are the common therapeutic approaches for psychological disorders?
Common therapeutic approaches for psychological disorders include psychotherapy, medication, and a combination of both. Psychotherapy involves talking with a mental health professional to explore and resolve issues. Medication can help manage symptoms and improve overall functioning. Mental health management involves ongoing care and support to maintain mental well-being.