Douglas Leon Wahlsten (born October 13, 1943) is a Canadian neuroscientist, psychologist, and behavior geneticist.
[3] He is known for his laboratory research on the behavior of mice, and for his theoretical writings on a wide range of other topics.
[5] He has criticized some of his fellow behavior geneticists for trying to separate the effects of genes and the environment on human intelligence, an endeavor he considers futile.
[8] He also met and became friends with Leilani Muir, later helping to edit her autobiography, A Whisper Past.
[18] In 2024, he published his autobiography in two parts: one about his involvement in politics,[19] the other on his scientific endeavors.