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What is Psychology?
Psychology is the scientific study of mental processes, experiences, and behaviour. It explores the
complexities of the human mind and how we interact with our environment, bridging biological
sciences and socio-cultural contexts.
Mental Processes
Internal states of
consciousness and
awareness4thinking,
reasoning, and problem-
solving activities that shape
our understanding of the
world.
Experiences
Subjective feelings and
consciousness deeply
influenced by internal states
and external conditions4
from joy and pain to
meditation-induced
awareness.
Behaviour
Observable responses,
actions, and activities
triggered by internal or
external stimuli4what we do
and how we react to our
surroundings.
Evolution of Psychological Schools
01
1879 - Structuralism
Wilhelm Wundt established the
first psychology laboratory in
Leipzig, using introspection to
analyse the structure of the
mind.
02
Functionalism
William James shifted focus to
what the mind does4studying
consciousness as an ongoing
stream of mental processes
interacting with the
environment.
03
Gestalt Psychology
Emerged in Germany,
emphasising that experience is
holistic4"the whole is greater
than the sum of its parts."
04
Behaviourism
John Watson focused on
observable and verifiable
behaviour, rejecting
introspection and
consciousness as scientific
tools.
05
Psychoanalysis
Sigmund Freud explored
unconscious desires and
conflicts, viewing behaviour as
driven by pleasure-seeking
motivations.
06
Humanistic Psychology
Carl Rogers and Abraham
Maslow emphasised free will
and the natural striving to grow
and fulfil inner potential.
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Cognitive Perspective
Combined Gestalt and structuralism approaches, focusing on how we know about the world through
learning and mental construction.
Psychology as Science & Social Science
Natural Science Approach
Follows the hypothetico-deductive model
Emphasises objectivity and empirical data
Seeks causal explanations for behaviour
Focuses on prediction and control
Rooted in biological and physical sciences
Social Science Approach
Studies behaviour in socio-cultural contexts
Examines person-environment interactions
Assumes multiple causes for phenomena
Values subjective experiences
Integrates cultural and social factors
Major Branches of Psychology
Cognitive Psychology
Studies mental processes like attention,
perception, memory, reasoning, and
problem-solving through experiments.
Biological Psychology
Explores the relationship between
behaviour and physical systems4brain,
nervous system, genetics, and immune
system.
Developmental Psychology
Examines physical, social, and
psychological changes across the lifespan
from infancy to old age.
Social Psychology
Investigates how social environments
influence thoughts and behaviours4
attitudes, conformity, and interpersonal
attraction.
Health Psychology
Studies psychological factors in illness
development, prevention, treatment, and
health-promoting behaviours.
Clinical & Counselling
Addresses causes, treatment, and
prevention of psychological disorders to
improve daily functioning and well-being.
Psychology in India
Philosophical Roots
Indian tradition emphasises self-reflection,
consciousness, mind-body relations, and
mental processes as pathways to
understanding.
Modern Beginning (1915)
First psychology syllabus introduced at
Calcutta University with laboratory
establishment. Pioneers: Dr N.N. Sengupta
and Prof. G. Bose.
Contemporary Growth
Centres of excellence established. Focus
on indigenisation4developing psychology
rooted in Indian social and cultural
contexts.
Global Contribution
Research at intersections with neurobiology
and health sciences. Applications across
clinical, HRD, sports, and IT sectors.
Interdisciplinary Connections
Psychology stands at the crossroads of diverse fields, enriching and being enriched by multiple
disciplines.
Psychology vs Common Sense
Psychology challenges everyday explanations of behaviour through systematic scientific
investigation, often contradicting common sense beliefs.
Common Sense Example
"Out of sight, out of mind" versus "Distance
makes the heart grow fonder"
Both sayings contradict each other, yet people
use them to explain different situations based
on hindsight.
Scientific Approach
Psychology aims to predict patterns of
behaviour rather than explain them
retrospectively. Empirical studies systematically
examine data to formulate reliable principles
about human behaviour and psychological
phenomena.
Understanding Mind and Behaviour
Mind b Brain
The mind is dependent on
the brain but is a distinct
entity. Cases show
individuals functioning
normally despite brain
damage to specific regions.
Mind-Body Connection
Affective neuroscience
demonstrates how positive
visualisation and emotions
influence bodily processes.
Mental imagery treats
phobias effectively.
Psy choneur oimmunology
Emerging field showing the
mind's crucial role in
bolstering the immune
system and overall physical
health.
Psychology in Everyday Life
Psychology offers practical solutions to problems at personal, familial, community, national, and
international levels4from education and health to social justice and intergroup relations.
Academic Success
Develop effective study
habits, enhance
memory, reduce exam
stress, and improve
learning strategies.
Better Relationships
Understand
interpersonal
dynamics, improve
communication, and
build stronger
connections with
others.
Personal Growth
Self-analysis,
emotional regulation,
decision-making skills,
and fostering overall
well-being and life
satisfaction.
Social Contribution
Apply psychological
principles to
intervention
programmes across
diverse settings,
enhancing quality of
life for communities.
Key Takeaways
Scientific Discipline
Psychology uses systematic methods to
study behaviour, experiences, and mental
processes objectively.
Rich Evolution
From Wundt's structuralism (1879) to modern
cognitive and cultural approaches,
psychology has continuously evolved.
Interdisciplinary Nature
Bridges natural sciences and social sciences,
collaborating with diverse fields from
neuroscience to anthropology.
Practical Applications
Offers solutions to real-world problems in
education, health, relationships, and
community well-being.
Biology & Medicine
Brain-behaviour relationships
and mind-body health
connections
Computer Science
Artificial intelligence mimicking
human cognitive processes
Sociology & Anthropology
Human behaviour in socio-
cultural contexts and group
dynamics
Law & Criminology
Memory, decision-making, guilt,
and legal processes
Arts & Literature
Creative processes, emotional
expression, and performance
Architecture & Engineering
Human-centred design for
safety and well-being
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