Wilfred Trotter

Wilfred Trotter (1872-1939) was a British surgeon, a pioneer in neurosurgery. He was also known for his studies on social psychology, most notably for his concept of the herd instinct, which he first outlined in two published papers in 1908, and later in his famous popular work Instincts of the Herd in Peace and War. Trotter argued that gregariousness was an instinct, and studied beehives, flocks of sheep and a wolf packs.

He met Sigmund Freud several times. According to Ernest Jones (Freud's first biographer), "he was one of the first two or three in England to appreciate the significance of Freud's work, which I came to know through him. He was one of the rapidly diminishing group who attended the first International Congress at Salzburg in 1908."

Working at University College Hospital in London, as professor of surgery, he held the office of honorary surgeon to King George V from 1928 to 1932. He was also a member of the Council of the Royal Society that conferred their Honorary Membership on Professor Freud, whom he attended after his move to England. Later he was consulted about Freud's terminal cancer, in 1938.

Trotter was also the surgeon, at University College London for whom Wilfred Bion worked as a resident in his own medical training, before he famously studied groups and trained as a psychoanalyst at the Tavistock Institute. In her account of Bion's life 'The Days of our Years', his wife, Francesca writes of the great influence Trotter had on the direction of Bion's work on group relations.

Edward Bernays, author of Propaganda, and nephew to Freud, also refers to Trotter and Gustave LeBon in his writings.

Life
Born in Coleford, England, in 1872, Trotter moved to London to attend college at age 16. An excellent medical student, he decided to specialise in surgery, and opened his own practice after obtaining his medical degree. He was also a keen writer, with an interest in science and philosophy. In 1908 he published two papers about the herd mentality, which were precursors to his later, more famous, work. In the last years of his life, he taught at a medical school and turned to writing on a larger scale. The Collected Papers of Wilfred Trotter, an anthology of his final essays, appeared two years after his death in 1939.

Major Works
Trotter's popular book, The Instincts of the Herd in Peace and War is an analysis of group psychology and the ability of large numbers of people to be swayed by innate tendency. In it he popularised in English the concept, first developed by french sociologist Gustave LeBon, of an instinct overiding the will of the individual in favour of the group.

Trotter's writings about the herd mentality, which began as early as 1905 and were published as a paper in two parts in 1908 and 1909 are considered by some to represent a breakthrough in the understanding of group behaviour, long before its study became important in a variety of fields, from workplace relations to marketing.