Joseph Jastrow (January 30, 1863 – January 8, 1944) was an American psychologist, noted for inventions in experimental psychology, design of experiments, and psycho-physics. Jastrow was one of the first scientists to study the evolution of language, publishing an article on the topic in 1886. He also worked on the phenomena of optical illusions, and a number of well-known optical illusions (such as the Jastrow illusion) were either discovered or ...
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Joseph Jastrow (January 30, 1863 – January 8, 1944) was an American psychologist, noted for inventions in experimental psychology, design of experiments, and psycho-physics. Jastrow was one of the first scientists to study the evolution of language, publishing an article on the topic in 1886. He also worked on the phenomena of optical illusions, and a number of well-known optical illusions (such as the Jastrow illusion) were either discovered or popularized in his work.
Jastrow was born in Warsaw, Poland. A son of Talmud scholar Marcus Jastrow, Joseph Jastrow was the younger brother of Morris Jastrow, Jr.. Joseph Jastrow came to Philadelphia in 1866 and graduated at Penn in 1882. Jastrow was a fellow in psychology at Johns Hopkins (1885-86), during which time he assisted C. S. Peirce with experiments in psycho-physics that introduced randomization and blinding for a repeated measures design. From 1888 onwards, Jastrow was a professor at the University of Wisconsin–Madison.Professor...
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