- Abnormal behaviour is linked to brain and nervous system problems.
- Neurotransmitter imbalance can cause mental disorders.
- Hormonal and biochemical changes affect mood and behaviour.
- Mental disorders may have a genetic basis.
- MRI and PET scans support the biological explanation.
Topics
Intelligence and Ability
- Concept of Intelligence
- Nature of Intelligence in the Indian Context
- Judging Intelligence from Behaviour
- Measurement of Intelligence
- Mental Age
- Intelligence Quotient
- Intelligent Tests
- Types of Intelligence Tests
- Individual Test
- Group Test
- Verbal Test
- Non-Verbal Test
- Infant Intelligence Tests
- Culture Bias and Culture Fair Tests
- Non-Verbal Test> Raven's Progressive Matrices Test
- Validity of Intelligence Tests
- Levels of Intelligence
- Implications of Intelligence Levels
- Characteristics of Gifted Children
- Distribution of I.Q.s in the Population
- Constancy of I.Q.
- Age and Intelligence
- Significance and Implications of Intelligence Levels
- Determinants of Intelligence
- Hereditary Factors
- Hereditary Factors> Jensen’s Theory
- Environmental Factors
- Environmental Factors> Indian Studies on Environment and Intelligence
- Environmental Factors> Culture
- Environmental Factors> Sex Differences
- Environmental Factors> Health
- Environmental Factors> Family Size
- Environmental Factors> Social Deprivation
- Environmental Factors> Socio-economic Status
- Theories of Intelligence
- Charles Spearman's Two Factor Theory
- Louis Thurstone’s Multifactor Theory
- Guilford's Structural Model Theory
- E. L. Thorndike's Theory
- Modern Theories of Intelligence
- Howard Gardner's Multiple Intelligence Theory
- Sternberg’s Triarchic Theory
- Theory of Intelligence by Cattell
- The Pass Theory of Intelligence
- New Trends in Intelligence> Emotional Intelligence
- Characteristics of Emotional Intelligent Person
- New Trends in Intelligence> Artificial Intelligence
- Creativity and Intelligence
- Characteristics of Creative Person
- Factors Affecting Creativity
- Relation Between Creativity and Intelligence
- Concept of Aptitude
- Types of Aptitude Tools
- Types of Aptitude Test> General Aptitude Test Battery (GATB)
- Types of Aptitude Test> Differential Aptitude Test (DAT)
- Types of Aptitude Test> Special Aptitude Test
- Achievement Tests
- Uses of Achievement Tests
- Batteries of Achievement Tests
- Combination of Aptitude-Achievement Batteries
- Concept of Interest
- Interest Tests
- Types of Interest Test Tools> Strong Vocational Interest Blank
- Types of Interest Test Tools> Strong-Campbell Interest Inventory (1974)
- Comparison of Aptitude, Achievement, and Interest Tests
Personality
- Concept of Personality
- Psychological System
- Characteristics of Personality
- Personality Related Terms
- Classification of Personality
- Friedman's Theory of Personality
- Charak Samhita's of Ayurveda Theory of Personality
- Charak Samhita's of Ayurveda Theory of Personality> Personality Type of Charaka and Sushruta
- Charak Samhita's of Ayurveda Theory of Personality> Personality Types based on Triguna
- Kretschmer's Theory of Personality
- Sheldon’s Theory of Personality
- Determinants of Personality
- Situational Determinants
- Situational Determinants> Role of Home
- Situational Determinants> Effect of School and Education
- Situational Determinants> Sibling Rivalry
- Environmental Factors> Socio-economic Status
- Measurement of Personality
- Psychometric Tests
- Psychometric Tests> Questionnaires/Self Report Inventories
- Psychometric Tests> Use of Self-Report Inventories
- Psychometric Tests> Minnesota Multiphasic Personality Inventory (MMPI)
- Behavioural Analysis
- Projective Techniques
- Projective Techniques> Impressive
- Projective Techniques> Interpretive
- Rorschach Test
- Thematic Apperception Test
- Rosenzweig Picture Frustration Test
- Kahn Test of Symbol Digit Arrangement
- Word Association Test
- C.A.T. (Children’s Apperception Test)
- Indian Personality Tests
- Types of Personalities
- Theories of Personality
- Freud's Psychoanalytic Theory of Personality
- Freud's Psychoanalytic Theory of Personality> Pre-conscious or Sub-Conscious
- Freud's Psychoanalytic Theory of Personality> Structure of Freud's Theory of Personality
- Freud's Psychoanalytic Theory of Personality> Stages of Personality Development
- Phallic Stage
- Genital Stage
- Neo-Freudian Theory of Personality
- Carl Jung’s Theory of Personality
- A. Adler's Theory of Personality (1870-1937)
- Erik Erikson's Theory of Psycho-Social Development
- Karen Horney (1950)
- Humanistic Approach
- Carl Roger's Self Theory
- Maslow’s Theory of Self Actualization
- Descriptive Personality Theories
- Type Theories
- Type Theory> Jung's Type Theory
- Extroverts
- Introverts
- Ambiverts
- Type Theory> Hippocrates' Type Theory of Personality
- Type Theory> Eysenck Concept of Personality
- Trait Theories
- Trait Theory> Cattell’s Concept of Personality
- Catell's Concept of Personality> Criticism and Evaluation of Cattell’s Trait Theory
- Social Cognition and Social Learning Theories
- Social Learning Theory of Bandura
- Social Learning Theory by Julian Rotter (1954, 1982)
- Improving Social Skills through Imitation and Observation
- Trait Theory> Trait Theory of G. Allport
- Trait Theory> Types of Traits
- Trait Theory> Dimensions of Personality
Life Span Development
- Concept of Life Span Development
- Growth and Development
- Principles and Characteristics of Development
- Trends of Development
- Factors Influencing Development
- Importance of Studying Childhood Development
- Maturation and Learning or Heredity and Environment
- Genetic Bases of Development
- Chromosome
- Genes
- Mechanism of Heredity Transmission
- Sex Determination
- Effect of Heredity on Human Beings
- Personality
- Concept of Intelligence
- Importance of Heredity in Development
- Heredity's Role in Human Development
- Environment's Role in Human Development
- Interaction between Heredity and Environment
- Bronfenbrenner's Ecological System Theory
- Levels of Ecological System
- Bronfenbrenner’s Views and Applications
- Technology and Ecological System
- Stages of Development> Period of Infancy
- Stages of Development> Prenatal Developmental Period
- Crying and Breathing
- Functions of Vital Organs
- Temperature
- Sensory Development of the Neonate
- Sensory Development of the Neonate> Reaction to Sound
- Sensory Development of the Neonate> Smell and Taste
- Sensory Development of the Neonate> Temperature
- Sensory Development of the Neonate> Pain
- Sex Differences in Development
- Activities and Needs of the Infant
- Perceptual Development of the Infant
- Stages of Development> Babyhood
- Stages of Development> Childhood
- Concept of Adolescence
- Physical Development
- Height and Weight
- Development of Nervous System
- Motor Skills during Preschool Age
- Motor Development
- Locomotor Development
- Bipedal Locomotion
- Development of Motor Skills
- Objective Performance
- Motor Development during Infancy
- Piaget's Concept of Cognitive Development
- Piaget’s Stages of Cognitive Development
- Sensory-Motor Period
- Sensory-Motor Period> Internal Mental Combination (18-24 months)
- Pre-Operational Period
- Period of Intuitive Thought
- Concrete Operation Stage
- Formal Operation Stage (11 Years and Above)
- Emotional Development during Infancy and Childhood
- Characteristics of Emotions
- Development of Emotion
- Bridges’ Theory of Emotional Development (1932)
- Role of Maturation in Emotional Development
- Role of Learning and Imitation
- Concept and Nature of Attachment
- Growth of Attachment
- Formation of Attachment
- Role of Feeding in Attachment
- Smile and Attachment Behaviour
- Attachment and Anxiety
- Importance of Attachment to Child Development
- Mary Ainsworth's Strange Situation Test (1965)
- Beginning of Social Behaviour
- Reaction to Mother
- Social Behaviour During Early Childhood
- Social Behaviour Development: 0–2 Years
- Eighteenth Month to Two Years
- Early Childhood (2 yrs – 6 yrs)
- Role of Peers in Social Development
- Forms of Social Behaviour
- Development of Gender Identity
- Development of Gender Roles
- Gender Typing
- Adjustment Demands of Adolescence
- Gender Stereotypes
- Sexual Behaviour during Adolescence
- Major Concerns of Adolescence
- Gender Differences in Development
- Major Concerns of Adolescence > Delinquency
- Elements of Gender Differences
- Conscience and Moral Development
- Major Concerns of Adolescence > Substance Abuse
- Major Psychological Disorder> Eating Disorders
- Factors Influencing Conscience
- Bulimia Nervosa
- Morality and Conscience in Adolescence
- Piaget's View on Moral Development
- Anorexia Nervosa
- Kohlberg's View on Moral Development
- Kohlberg's Stages of Moral Development
- Critique of Kohlberg's Moral Reasoning Theory
- Features & Challenges of Adolescence
- Socio-Emotional Impact on Adolescents
- Interrelation of Physical Development, Social Acceptance, and Personality
- Cognitive Development during Adolescence
Stress and Stress Management
- Concept of Stress
- Nature of Stress
- Process of Stress
- Levels of Stress
- Concept of Stressors
- Types of Stressors
- Characteristics of Stressors
- Concept of Burnt Out
- General Adoption Syndrome (G.A.S.)
- Limitations of G.A.S.
- Types of Stress
- Sources of Stress
- Sources of Stress> Environmental/Situational, External
- Sources of Stress> Environmental/Situational, External
- Frustration (Physical, Social, and Internal Stressors)
- Sources of Stress> Internal Sources of Stress
- Introversion and Extroversion
- Personality Types of Variables
- Effects of Stress on Physical Health
- Cardiovascular Disorder
- Coronary Heart Disease
- Essential Hypertension
- Tension Headaches
- Asthma
- Eczema
- Peptic Ulcers
- Colitis
- Diabetes
- Effects of Stress on Performance
- Relation between Stress and Performance
- Effects of Stress on Mental Illness
- Stress Management
- Effective Ways of Handling Stress
- Stress Management Techniques
- Stress Management Techniques> Sudarshan Kriya
- Stress Management Techniques> Biofeedback
- Stress Management Techniques> Relaxation Techniques
- Ineffective Ways of Handling Stress
- Ineffective Ways of Handling Stress> Ineffective Responses
- Ineffective Ways of Handling Stress> Defence Mechanisms of the Ego
- Repression
- Regression
- Projection
- Displacement
- Reaction Formation
- Promoting Positive Health and Well-being
- Impact of Stress on Well-Being
- Effective Lifestyle
Psychological Disorders and Psychotherapy
- Concept of Abnormal Behaviour
- Perspectives of Abnormal Behaviour> Statistical Perspective
- Perspectives of Abnormal Behaviour> Biological and Medical Perspectives
- Perspectives of Abnormal Behaviour> Psychological/Psychodynamic Perspective
- Perspectives of Abnormal Behaviour> Socio-Cultural Perspective
- Perspectives of Abnormal Behaviour> Diathesis-Stress Perspective
- Features of Abnormal Behaviour
- Classification of Psychological Disorders
- DSM-IV Classification System
- DSM-IV Classification System> DSM-IV Multiaxial System
- DSM-IV Classification System> Schizophrenia Symptoms (as per DSM-IV-TR)
- Limitations of DSM-IV
- APA Criteria of Abnormal Behaviour
- DSM-V Classification
- Major Psychological Disorder> Anxiety Disorders
- Symptoms of Anxiety Disorders
- Major Psychological Disorder> Obsessive Compulsive Disorder (OCD)
- Concept of Obsession
- Compulsive Disorder
- Mood Disorders
- Depressive Disorders
- Causes of Depression
- Major Psychological Disorder> Dissociative Disorders
- Dissociative Amnesia
- Personality Disorder
- Anti-social Personality Disorder
- Avoidant Personality Disorder
- Histrionic Personality Disorder
- Dependent Personality Disorder
- Passive and Aggressive Style Personality
- Major Psychological Disorder> Eating Disorders
- Anorexia Nervosa
- Bulimia Nervosa
- Behavioural and Developmental Disorders
- External Behaviour Disorders
- Internal Behaviour Disorders
- Autism
- Major Psychological Disorder> Schizophrenia
- Symptoms of Schizophrenia> Positive Symptoms
- Symptoms of Schizophrenia> Negative Symptoms
- Types of Schizophrenia
- Origin and Causes of Schizophrenia
- Treatment and Management of Schizophrenia
- Concept of Psychotherapy
- Forms of Psychotherapy
- Psychodynamic Therapies
- Psychodynamic Therapies> Psychoanalysis
- Techniques used in Psychoanalysis
- Psychodynamic Therapies> Alfred Adler's Psychodynamic Therapy
- Psychodynamic Therapies> Sullivan's Psychodynamic Therapy
- Humanistic-existential Therapy> Client Centred Therapy
- Behaviour Therapies
- Behaviour Therapies> Systematic Desensitisation
- Behaviour Therapies> Operant-Based Behaviour Therapy
- Aversion Therapy
- Flooding or Impulsive Therapy
- Modelling
- Assertive Training
- Thought Stopping
- Token Economy
- Behaviour Therapies> Evaluation of Behaviour Therapy
- Cognitive Therapy
- Rehabilitation
Social Thought and Social Behaviour
- Social Perception
- Concept of Attribution
- Biases in Forming Attribution or Judgments
- Biases in Attribution
- Influence of Feedback on Attribution
- Sources of Biases and Errors in Attribution
- Person Positively Bias
- Motivational Bias
- Motivational Skepticism
- False Consensus Effect
- Cognitive Bias
- Cultural Bias
- Hostile Attribution Bias
- Intergroup Attribution Bias
- Criticisms of Attribution Bias
- Reduction of Attribution Bias
- Social Groups
- Characteristics of Social Group
- Types of Social Group
- Formation of Groups
- Ingredients of Group Behaviour
- Functions of Group
- Group At Work
- Influence of Group on Individual Behaviour
- Changing Others’ Behaviour
- Reasons for Influencing Behaviour
- Techniques of Behaviour Change
- Concept of Social Norms
- Concept of Conformity
- Value of Conformity
- Conformity to Social Norms
- Asch's Study on Conformity
- Concept of Obedience
- Causes of Obedience
- Milgram's Experiment on Obedience
- Difference between Conformity and Obedience
- Factors Affecting Conformity and Obedience
Attitudes, Prejudice and Stereotypes
- Concept of Attitude
- Earlier Studies on Attitude
- Nature and Components of Attitudes
- Classification of Attitude
- Formation of Attitude
- Role of Genetic Factors in Attitude Formation
- Determinants of Attitude
- Motivational Determinants
- Perceptual Determinants
- Social Determinants
- Verbal Determinant
- Personality Factors
- Functions of Attitude
- Attitude and Related Concepts
- Attitude Change
- Social Groups
- Compliance
- Identification
- Internalization through Persuasion
- Direct Contact
- Increased Familiarity of the Attitudinal Object
- Education
- Frame of Reference
- Sudden Conversion due to Trauma
- Role Playing and Dramatic Experience
- Cognitive Dissonance
- Balance of the Psychological Field
- Programme of Action for Attitude Change
- Indian Research on Attitude and Change
- Prejudice and Discrimination
- Concept of Prejudice
- Origin and Development of Prejudice
- Gender Prejudice
- Causes of Prejudice
- Personality and Motivational Determinants
- Cultural Determinants
- Indian Studies on Social Prejudice
- Studies on Caste Prejudice
- Reducing and Resisting Prejudice and Discrimination
- Cognitive Approaches
- Educational Approaches
- Concept of Stereotypes
- Types of Stereotypes
- Caste Stereotypes
- Gender Stereotypes
- Community Stereotypes
- Change of Stereotypes
- Studies on Stereotypes
Applications of Psychology to Different Areas of Life
- Applications of Psychology
- Applications of Psychology > Clinical and Counselling Psychology
- Components of Counselling Process
- Areas of Counselling
- Application of Psychological Tests in Counselling
- Stages of Counselling Process
- Counselling and Psycho-Analysis
- Counselling and Anti-social Behaviour
- Case Studies Using Counselling Process
- Types of Counselling
- Counselling and Therapy
- Advantages of Counselling
- Ethics in Counselling
- Role of Counsellor
- Role of a Counsellor with Individuals, Couples and Families
- Role of a Counsellor with Couples
- Role of Counsellor in Family Issues
- Role of Counsellor with Group Problems
- Applications of Psychology > School and Educational Area
- Facilitation of Learning in School
- Effective Motivation for Study
- Stimulating School Environment
- Making the Study Material Meaningful
- Teacher–Student Relationship
- Difficulties of Teachers and Students
- Teaching and Evaluation Techniques
- Objective Type of Examination
- Role of School Psychologist
- Improvement of Memory of Students
- Method of LOCI
- Numerical Pegs
- Chunking
- Narrative Stories
- Individual Differences and Career Planning
- Career Counselling
- Role of Psychologist in Career Selection
- Requirements of a Job
- Job Analysis
- Testing Individuals
- Matching Individuals with Jobs
- Determinants of Judicious Choice of Career
- Career Information
- Aligning Career with Aptitude & Interest
- Don't Pursue a Job Due to Pressure
- Develop Insight into Self
- Opportunities, Hobbies, and Interests
- Applications of Psychology > Organisational Area
- Personnel Psychology
- Selection and Recruitment
- Training
- Scientific Management
- Planning and Time and Motion Study
- Time Study
- Motion Study
- Scientific Management
- Role of Social Industrial Psychology and Attitude
- Motivation, Incentives, Job Satisfaction and Work Environment
- Leadership Skills and Team Building
- Marketing and Consumer Behaviour
- Personal Consumer and Organizational Consumer
- Personality Factors of Consumers
- Self Image and Multiple Selves
- Role of Culture on Consumer Psychology
- Cross-Cultural Consumer Analysis
- Consumer's Decision-Making Process
- Application of Psychology to Crime and Criminals
- Increase in Crime
- Causes of Criminal Behaviour
- Psychological Causes of Crime
- Prevention of Criminals
- Probation System
- Control of Criminals
- Rehabilitation of Criminals
Estimated time: 8 minutes
- Introduction
- Brain, Neurotransmitters and Biochemical Systems
- Genetic Factors
- Neuropsychology and Brain-Imaging Evidence
- Key Points: Perspectives of Abnormal Behaviour> Biological and Medical Perspectives
CISCE: Class 12
Introduction
The biological or medical perspective explains abnormal behaviour mainly through problems in the body, especially the brain and nervous system. It views psychological disorders as illnesses that can be studied and treated like physical diseases.
CISCE: Class 12
Brain, Neurotransmitters and Biochemical Systems
- Different areas of the brain control thinking, emotions, memory, and behaviour, and malfunctioning in these areas can cause abnormal thoughts, feelings, and actions.
- Neurotransmitters are chemical messengers between nerve cells, and their imbalance is linked with disorders like depression, anxiety, and schizophrenia.
- Hormones and other biochemical substances released by glands influence mood and behaviour, and their imbalance can also contribute to mental disorders.
CISCE: Class 12
Genetic Factors
- Many mental disorders have a genetic basis and tend to run in families.
- If one family member has a disorder, the risk for close relatives is higher, but genes only increase vulnerability and do not guarantee a disorder.
CISCE: Class 12
Neuropsychology and Brain‑Imaging Evidence
- Neuropsychology studies how brain structure and functioning are related to behaviour.
- Modern techniques such as MRI and PET scans show structural and functional brain differences in people with mental disorders.
- These findings have made the biological model highly influential in explaining mental abnormality in recent decades.
CISCE: Class 12
