🇵🇹 António Egas Moniz

António Caetano de Abreu Freire Egas Moniz was born on 29 November 1874 in the village of Avanca, in northern Portugal, into a landowning Catholic family. He was raised partly by an uncle, an abbot who gave him his early schooling, before he entered the University of Coimbra to study medicine. He took the name Egas Moniz from a medieval Portuguese knight, an ancestor of legend, and carried it for the rest of his life.

Moniz lived two lives at once. He was a member of parliament, served as Portugal's ambassador to Spain, led the Portuguese delegation to the 1919 Paris Peace Conference, and briefly held the post of foreign minister. Yet through all of it he held the chair of neurology at the University of Lisbon, which he occupied from 1911 until 1944 as the institution's first professor of the subject. He treated patients, taught students, and never stopped looking for ways to make the hidden brain visible.

His breakthrough came in 1927. Reasoning that blood vessels could be made to show up on X-ray film if filled with a substance opaque to radiation, Moniz developed cerebral angiography: injecting a contrast agent into the carotid artery and photographing the brain's vascular network. For the first time, physicians could locate tumours, aneurysms, and other lesions in a living patient by reading the displacement of arteries. The technique transformed neurology and neurosurgery and remains foundational to brain imaging today. Moniz was nominated for the Nobel Prize three times, in 1928, 1932, and 1937, for this work, but never received it for angiography.

In the mid-1930s Moniz turned to a far more drastic idea. Working with the surgeon Almeida Lima, he developed the prefrontal leucotomy, an operation that severed connections in the frontal lobes of patients suffering from severe psychoses and intractable agitation. At a time when psychiatric hospitals offered almost no effective treatment, Moniz reported that some patients became calmer and easier to manage. He coined the term psychosurgery to describe the field.

It was for the leucotomy, not for angiography, that the Karolinska Institute awarded Egas Moniz the Nobel Prize in Physiology or Medicine in 1949, shared with the Swiss physiologist Walter Rudolf Hess. The citation praised the leucotomy as a therapy for certain psychoses. The operation spread rapidly, and in the United States it was crudely industrialised into the lobotomy, performed tens of thousands of times, often on patients who could not consent.

Modern medicine has firmly reassessed that legacy. The lobotomy is now understood as a procedure that frequently left patients emotionally blunted, passive, or permanently impaired, and it was largely abandoned once antipsychotic drugs arrived in the 1950s. The 1949 prize remains one of the most criticised in Nobel history, and there have been recurring, unsuccessful calls to revoke it. Historians today separate the two halves of Moniz's career carefully: a genuine and lasting diagnostic revolution on one side, and on the other a treatment whose harms were not adequately weighed.

Moniz himself was nearly killed for his work. In 1939 a former patient shot him several times in his office; he survived but lived with chronic pain and partial disability afterward, often working from a wheelchair. He continued writing, publishing on neurology, on art, and a two-volume autobiography. He had always been a man of many appetites, a collector of art, a writer on Portuguese cultural history, a public figure who moved easily between the operating theatre, the lecture hall, and the corridors of power. Colleagues described him as charming, ambitious, and tireless, a person who seemed to live several careers at once and to expect each of them to matter.

It is worth being precise about why the leucotomy spread as fast as it did. In the 1930s the asylums of Europe and America were overcrowded with patients for whom medicine had nothing to offer; there were no effective drugs, and treatments ranged from prolonged baths to insulin-induced comas. Into that vacuum Moniz offered an operation that, he reported, could calm the most agitated patients. Desperation, not malice, drove its adoption, and that is part of what makes the story so instructive: a treatment can be embraced sincerely, honoured at the highest level, and still turn out to be a mistake. The modern reassessment does not erase Moniz's intelligence or his genuine contributions; it insists that good intentions and high reputations are not substitutes for rigorous evidence and informed consent.

Egas Moniz died in Lisbon on 13 December 1955, at the age of 81. His name endures across Portugal, on a Lisbon hospital, a medical school, and a metro station, and his face appeared on the country's currency. He is remembered as the man who first photographed the living brain, and as a cautionary figure whose story is now taught alongside the ethics of consent, evidence, and the limits of intervention in psychiatric medicine. Few scientists carry a legacy so sharply divided, and few are as useful to study precisely because of it.