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The Hawthorne Effect

The 1920s experiment in a Chicago factory that gave rise to a classic textbook phenomenon.

• 30 mins

Harlow's Monkeys

Revisiting Harry Harlow's surrogate mothers experiment, which revolutionised parenting.

• 30 mins

Arden House

Claudia Hammond revisits Langer and Rodin's 1976 Arden House study.

• 30 mins

Case Study: HM - The Man Who Couldn't Remember

A man known as HM provided the key to one of the mysteries of the human brain.

• 30 mins

Case Study: John/Joan - The Boy Who Was Raised as a Girl

The case that for years apparently proved that nurture not nature dictates gender identity

• 30 mins

Case Study: SB - The Man Who Was Disappointed with What He Saw

The story of SB, who had his sight restored after over 50 years of blindness.

• 30 mins

Case Study: Dora - The Girl Who Walked Out on Freud

The story of Dora, Freud's first case history, which he used to explain infant sexuality.

• 30 mins

Walter Mischel's Marshmallow Study

Claudia Hammond with more experiments that changed our understanding of the human mind.

• 30 mins

Henri Tajfel's Minimal Groups

Claudia Hammond with more experiments that changed our understanding of the human mind.

• 30 mins

Elizabeth Loftus and Eye Witness Testimony

Claudia Hammond with more experiments that changed our understanding of the human mind.

• 30 mins

Joseph Wolpe and Systematic Desensitization

Exploring Joseph Wolpe's development of a treatment for patients with phobias.

• 28 mins

Julian Rotter and Locus of Control

Claudia meets Julian Rotter, who promoted personality theory in clinical psychology.

• 28 mins

Donald Broadbent and the Cocktail Party

Claudia Hammond examines the legacy the psychologist who launched the cognitive revolution

• 28 mins

James Pennebaker and Expressive Writing

James Pennebaker proved that simply writing about how you feel can improve your health.

• 28 mins

Abraham Maslow and the Hierarchy of Needs

Claudia examines the Hierarchy of Needs, part of Abraham Maslow's theory of motivation.

• 28 mins

Anna Freud and Child Observation

By insisting on observation in nurseries, Anna Freud promoted understanding of children.

• 28 mins

Carol Dweck and Growth Mindset

Carol Dweck showed how changing people's beliefs can affect their levels of achievement.

• 28 mins

BF Skinner and Superstition in the Pigeon

A classic experiment in operant conditioning conducted by the famous behaviourist.

• 28 mins

Carl Rogers and the Person-Centred Approach

While Freud relied on expert and patient, Rogers pioneered a therapeutic model of equals.

• 28 mins