Evolution of psychology
Psychology has a long past in philosophy but a short history as a science.
- 1879, Structuralism: Wilhelm Wundt opened the first lab in Leipzig. He studied the structure of conscious experience using introspection (trained people describing their own experience).
- Functionalism: William James (USA) asked what the mind does — how it helps us adapt.
- Psychoanalysis: Sigmund Freud said unconscious wishes and conflicts drive behaviour.
- Gestalt: Wertheimer, Köhler and Koffka said we perceive wholes; the whole is more than the sum of parts.
- Behaviourism: John Watson said study only observable, measurable behaviour; later B. F. Skinner.
- Humanistic: Carl Rogers and Abraham Maslow stressed free will and growth to full potential.
- Cognitive: the mind as an information processor (like a computer: input, storage, output).
- Constructivism: Piaget (we build knowledge ourselves) and Vygotsky (we build it with others and culture).
Development of psychology in India
Indian philosophical traditions (Yoga, Buddhism, the Upanishads) discussed mind, consciousness and self-control for thousands of years.
- 1915: the first department of psychology and first lab at Calcutta University; N. N. Sengupta led experimental work.
- 1916: first psychology course; 1922: Girindrasekhar Bose founded the Indian Psychoanalytical Society.
- Early work copied Western ideas. After independence, departments spread across universities.
- From the 1960s–70s, psychologists such as Durganand Sinha pushed to study Indian problems (poverty, health, education) and use indigenous (home-grown) ideas. Today psychologists work in schools, hospitals, industry, defence and NGOs.
Branches of psychology
- Cognitive: attention, memory, thinking, decision making.
- Biological and neuropsychology: brain, nerves, hormones and behaviour.
- Developmental: change from conception to old age.
- Social: how other people affect us; cultural and cross-cultural: role of culture.
- Environmental: noise, crowding, heat, pollution and behaviour.
- Health: stress, lifestyle and illness.
- Clinical and counselling: diagnosing and treating problems, guiding people.
- Industrial/organisational: work, selection, motivation, leadership.
- Educational and school: learning, teaching, students' problems.
- Others: sports, forensic, military, aviation, space, rural, community, political and psychology of women.
Psychology and other disciplines
- Philosophy: questions about mind and knowledge.
- Medicine: mind-body link, patient care, stress and illness.
- Economics: how people really make buying and saving choices.
- Political science and sociology: voting, power, groups, society.
- Computer science: artificial intelligence, user-friendly design.
- Law and criminology: eyewitness memory, lie detection limits.
- Mass communication, music and fine arts, architecture and engineering: attention, emotion, safe and pleasant design.
Psychology in daily life
Psychology is not only for experts. It helps us understand ourselves, study better, handle stress, get along with others and make wiser choices. It also shapes public work: road safety posters, health campaigns, disaster help and schools.
Try it
In the 3D free-play step, pick a problem (like "I can't focus") and see which branch helps. Then write one change you will try this week.
Key formulas and definitions
- 1879: Wundt, Leipzig — first psychology lab (structuralism)
- Functionalism — James; Psychoanalysis — Freud; Behaviourism — Watson; Gestalt — Wertheimer, Köhler, Koffka
- Humanistic — Rogers, Maslow; Constructivism — Piaget, Vygotsky
- 1915: first psychology department in India, Calcutta University
Worked examples
1. Which school would say "Study only what you can see and measure"?
Behaviourism (John Watson). It rejected introspection because inner experience cannot be checked by others.
2. How did structuralism and functionalism differ?
Structuralism asked what conscious experience is made of (its parts), using introspection. Functionalism asked what the mind does to help us adapt to the environment.
3. Name the branch: (a) helping a Class 12 student choose a career, (b) studying why people litter less when bins are visible, (c) studying how babies learn to talk.
(a) Counselling / educational psychology, (b) environmental psychology, (c) developmental psychology.
4. Give two ways psychology links with computer science.
Artificial intelligence borrows ideas about human thinking; app and website design uses findings on attention and memory to make screens easy to use.
Common mistakes
- Saying Freud founded psychology. Wundt set up the first lab in 1879.
- Mixing up structuralism (parts of experience) and functionalism (uses of the mind).
- Thinking clinical psychology is the only branch.
- Believing psychology in India started only after independence. The first department opened in 1915.