Nicholas Humphrey

Nicholas Keynes Humphrey is an English neuropsychologist and writer whose work has focused on the evolution of consciousness and social intelligence. He carried out early research on visual perception after cortical damage in monkeys and collaborated with Lawrence Weiskrantz in research that led to the discovery of blindsight. He moved into ethology and, after doing fieldwork with mountain gorillas, was one of the first to formulate the social intelligence hypothesis. His more recent research, in collaboration especially with Daniel Dennett, has concentrated on the science and philosophy of phenomenal consciousness. His work builds towards a materialist theory of conscious experience in humans and animals, that explains it as a life-affirming illusion. These ideas, popularised in books including A History of the Mind (1992), Seeing Red (2006), Soul Dust (2011) and Sentience (2023), have had considerable impact but remain controversial.