Chapter 6. Psychology: Understanding the Mind and Behaviour

Psychology is the scientific study of mind and behaviour. Wilhelm Wundt opened the first experimental psychology laboratory in Leipzig in 1879 [12].

Major approaches [12]:

Biological: brain, nervous system, genes and hormones.

Behavioural: learning from the environment (Pavlov, Watson, Skinner).

Cognitive: memory, attention, thinking and language.

Humanistic: personal growth and meaning (Rogers, Maslow).

Psychodynamic: unconscious processes and early experience (Freud and successors), historically influential but controversial.

Sociocultural: the influence of culture and social context.

Learning. Classical conditioning links a neutral stimulus with an automatic response (Pavlov). Operant conditioning shapes behaviour through reinforcement and punishment (Skinner). Observational learning: people learn by watching others and their consequences (Bandura) [12][14].

Memory and thinking. Memory involves encoding, storage and retrieval. Effective study uses spaced practice, retrieval practice (self-testing) and meaningful organization of material [12].

Development. Piaget proposed four stages of cognitive development: sensorimotor (about birth–2), preoperational (about 2–7), concrete operational (about 7–11) and formal operational (about 11 onward) [13]. Erikson described eight psychosocial stages across the lifespan. Researchers continue to refine and criticize these models, especially for cultural differences [12].

Motivation and emotion. Maslow proposed a hierarchy of needs from physiological and safety needs to belonging, esteem and self-actualization; research evidence for a strict ordering is limited, but the idea remains influential [15].

Personality. The widely used Big Five model describes openness, conscientiousness, extraversion, agreeableness and neuroticism [12].

Social psychology. Studies of conformity (Asch) and obedience (Milgram, in which a majority of participants in the original study continued to give what they believed were severe shocks under instruction) show the power of social situations [16]. Prejudice, group behaviour, persuasion and helping are major topics [12].

Mental health. Mental disorders are common and treatable; therapies include psychotherapy and, in some cases, medication. Stigma and lack of services remain major barriers worldwide [18]. Anyone worried about their own mental health should speak with a qualified health professional.

Review: What is the difference between classical and operant conditioning? (Answer: classical pairs stimuli to create an automatic response; operant uses consequences, such as reinforcement, to shape voluntary behaviour.)