🇵🇹 António Damásio

António Rosa Damásio was born on 25 February 1944 in Lisbon, into a family that valued education. He studied medicine at the University of Lisbon, earning his medical degree and completing neurological training there in the early 1970s. Drawn to research on the brain, he moved to the United States, where he would spend the core of his career, eventually becoming a leading figure in American neuroscience.

For many years Damásio worked at the University of Iowa, building, with the neuroscientist Hanna Damásio, his wife and lifelong scientific partner, one of the most influential research programmes in the study of the brain's basis for emotion and decision-making. They later moved to the University of Southern California, where Damásio became a University Professor and the founding director of the Brain and Creativity Institute.

His central work grew from a careful study of patients with damage to specific brain regions, especially the ventromedial prefrontal cortex. These patients kept their intelligence, language, and memory, yet their lives fell apart. They made disastrous choices, could not plan, and seemed strangely indifferent. The famous nineteenth-century case of Phineas Gage, the railway worker whose personality changed after an iron bar destroyed part of his frontal lobe, became for Damásio a way into the puzzle: why should an injury to emotion wreck the capacity to reason?

His answer was the somatic marker hypothesis. Damásio proposed that past emotional experiences leave physiological traces, somatic markers, bodily signals that the brain calls up, often below conscious awareness, when we face a decision. These markers tag possible options as good or bad, narrowing the field and guiding choice. Strip them away, as brain damage does, and a person is left to reason endlessly through options with no felt sense of which one matters. Reason without emotion, Damásio argued, is not pure rationality; it is paralysis.

He laid this out for a wide readership in his 1994 book Descartes' Error: Emotion, Reason, and the Human Brain. The title is a direct challenge to René Descartes and the long Western tradition of mind-body dualism, the idea that thinking is separate from the body. Damásio's error of Descartes is the belief that the rational mind can or should operate apart from the body and its feelings. The book became an international bestseller and reshaped public and scientific conversation about emotion.

Damásio kept building the argument across further books, including The Feeling of What Happens, on the biological roots of consciousness and the self, Looking for Spinoza, Self Comes to Mind, and The Strange Order of Things, which traces feeling back to the survival logic of living cells. Across all of them runs a consistent thesis: feelings are not decorative add-ons to cognition but the foundation of the mind, rooted in the body's constant effort to keep itself alive.

Damásio is careful about what his work does and does not claim. He does not argue that feelings are always right, or that reasoning should be abandoned; he argues that the two are not separable systems, that a brain stripped of emotional signalling cannot reason well in the real world of uncertainty and consequence. His method, building general theories from the precise study of what specific brain injuries take away, places him in a long clinical tradition, and it gives his ideas an empirical grounding that purely philosophical arguments about mind and body had always lacked.

His influence has spread well beyond neuroscience, into psychology, philosophy, economics, education, and the design of artificial intelligence, wherever people grapple with how decisions are really made. He has received major international awards, the Prince of Asturias Award and the Grawemeyer Award among them, and honorary degrees from universities around the world, and he is one of the most cited and most widely read scientists of his generation. His books have been translated into dozens of languages.

Now based in Los Angeles, Damásio remains an active researcher and writer, still working closely with Hanna Damásio. His enduring contribution is a reframing as much as a discovery: he took emotion, long treated as the unruly opposite of intellect, and placed it at the centre of what it means to think, to choose, and to be a self. After Damásio, the old picture of a cool reasoning mind sitting above a troublesome body is simply no longer tenable.