Dr. Wilder Graves Penfield was one of Canada's foremost neurosurgeons. Two deep passions marked his听life. The first was a desire to understand the cause of brain illnesses, and the other was a devotion to family; both his immediate family, and听members of his extended professional family from around the world, including his听colleagues from听the Montreal Neurological Institute (The Neuro).
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Early Years
Wilder Penfield was born in 1891 in Spokane, Washington, where he lived until the age of eight. In 1899, he and his mother, sister听and older brother moved back to Hudson, Wisconsin.听 They left his father in Spokane to try to re-establish his听medical practice. In听1905,听his mother opened a private school in Hudson that not only became Penfield鈥檚 school but the family home as well.听
When Penfield听was 13,听his mother learned of the newly established Rhodes Scholarship and Penfield spent the next several years preparing to become one of its recipients.听He attended听Princeton University, largely due to the fact that it is in the听small state of New Jersey, and at the time,听Rhodes Scholarships were awarded on a state-by-state basis. Besides being a good student at university, he excelled in sports and was named class president and voted "best all-round man" by his classmates. His mother attended his graduation in 1913, and they traveled up the Hudson River, across Lake George and Lake Champlain to Montreal-the first time Penfield听would visit听the city that would become so important in his life. While at Princeton, Penfield听decided to pursue medicine like听his grandfather and estranged father听before him. He received a Rhodes Scholarship in 1914, and started his Oxford studies at Merton College the following year.
University and Medical Training
At Oxford, Penfield met two great medical teachers who would become听major influences in听his life: renowned British neurophysiologist, Sir Charles Sherrington, who first introduced him to the study of the brain, and Sir William Osler, an eminent Canadian professor who was serving as the Regius Professor of Medicine.听Penfield sent听William Osler听a letter of introduction, and听Lady Osler invited him to tea. It would be听the first of many meetings, and the beginnings of a blossoming friendship.听With so many men away at war, Oxford had few medical students.听 As a result, Penfield had the opportunity to befriend Charles Sherrington,听who was knighted in 1922 and received a听Nobel Prize in 1932.听听Penfield wrote about Sherrington,听鈥溾�e described to us the unsolved mysteries of neurology that were beckoning to him鈥︹�澨�
Penfield听was injured, but was rescued. He recuperated at the Osler home. Following the incident, there were premature reports to the听press of his death, and one newspaper erroneously printed his听obituary!听Penfield was later compensated by the German government and used the money to buy a farm on Lake Memphremagog in Quebec鈥檚 Eastern Townships, which became his family鈥檚 escape from the city.听
After Oxford, Penfield completed his MD at Johns Hopkins University. He interned under Harvey Cushing in Boston at Peter Brent Brigham Hospital. After his internship, he continued practicing surgery for seven years at the听New York Presbyterian Hospital. His time at the hospital was challenging, as he was faced with the limitations of available surgical procedures and discouraged by the death of several of his patients. His first surgical patient was a boy with a brain tumour 鈥� a tumour that was too deep to risk removal by surgery. Penfield was forced to tell the boy鈥檚 parents that he could not be saved. He added, however, 鈥淚 may be wrong. Doctor鈥檚 are wrong sometimes, you know?鈥� He had resolved then to never remove all hope. 听
The disillusionment he faced in his work as a surgeon led Penfield to return to research. He traveled to Spain to learn nerve cell staining techniques, and to Germany to听learn surgical techniques that he would use later to treat his own patients.听For two years, he studied the causes of epilepsy as well as contemporary surgical methods 鈥� lessons that would soon form the foundation of his groundbreaking work at the soon-to-be Montreal Neurological Institute.听
The Montreal Neurological Institute and Hospital
Penfield's听driving mission听was to establish a neurological institute, where surgeons, laboratory researchers, physiologists and all scientists in the field of neurology could work together and share their knowledge. After a decade of fundraising and grant writing, he established the Montreal Neurological Institute (the Neuro) in 1934, thanks to a substantial grant from听the Rockefeller Foundation and financial support from the government of Quebec, the city of Montr茅al, and private philanthropists. The Neuro soon established itself as the centre for听training, research,听and treatment of听nervous system and brain disorders. He was the Neuro's first director, and he remained director until 1960.
Penfield and his colleagues published their findings about a method of surgery听that would become known as "the Montreal procedure" in 1952.听听The procedure enabled听surgeons to operate on the brains of epileptic patients and听destroy听the cells where seizures originated.听The doctors used local anesthetics so they could听stimulate parts of the brain using electricity, and the patients could describe the sensations that were triggered by听that听stimulation.听 This helped doctors to identify and听eliminate areas of the brain that produced seizures. Thanks听to the success of the Montreal procedure, Penfield and his colleagues discovered a lot about the human brain, including which areas听produced certain thoughts, and how memories were stored.听 For example, one woman, who suffered from epileptic seizures, reported smelling burnt toast before having a seizure.听As demonstrated in the video below, Penfield attempted to find this area of the brain by asking the woman when she could smell burnt toast while stimulating parts of the brain.听听
Over the next several听years, Penfield and his colleagues also developed听sophisticated听behavioral听tests for pre- and post-surgical听evaluation听and made听several other important advances. Penfield retired as Director of the Neuro in 1960.
Later Years
Penfield spent his later years听writing novels, medical biographies,听and articles, travelling the world, lecturing, and participating听in the Neuro activities. Before his death in听Montreal in1976, Penfield's writing probed speculatively about the nature of human consciousness and the soul.
As a pioneering clinician and researcher, Penfield was celebrated nationally and internationally for what the Globe and Mail called his "almost miraculous" achievements, but to his patients and fellow health professionals, he was also known for his deep integrity and humanity.听
Penfield听was designated in 1988 as a National Historic Person. In 1994, he was among the inaugural members of the Canadian Medical Hall of Fame. Penfield's听autobiography,听No Man Alone, was published following听his death.
