Joseph Jastrow

Joseph Jastrow
Born	January 30, 1863 Warsaw, Poland
Died	January 8, 1944 (age 80)

Joseph Jastrow (1863– 1944) was an American psychologist with an interest in conjuring and optical illusions.

Biography

Professor Jastrow was head of the psychological section of the World's Columbian Exposition in 1893. He contributed to Science, the Psychological Review, and to other periodicals. His publications pertaining to magic include:

• The Psychology of Deception (1888)
• Psychological Notes on Sleight-of-Hand Experts (1896)

Jastrow 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 did experiments on Herrmann and Kellar which demonstrated how fast their fingers and forearms had become compared to average people.

References

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• The American Journal of Psychology By Granville Stanley Hall, JSTOR (Organization), Madison Bentley. Published by University of Illinois Press, 1900
• "Psychology of Deception" by Joseph Jastrow, originally published in Popular Science Monthly Dec 1888
• Psychological Notes on Sleight-of-Hand Experts, Science, 1896