Polygraph
15 x 50 x 30 cm (h x w x d)

This two-channel polygraph recorder from the Stoelting company was used at Chair I, among other things, to carry out reaction time experiments with variable amounts of information. Thus, Hick's law could be demonstrated experimentally to the students.

More from The Center for the History of Psychology presents:

Gustav Kafka (1883-1953)
150 x 100 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents:
Maria Schorn (1894-1968)
120 x 98 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents:
Albert Holden Abbott (1871-1934) and presumably Max Wertheimer (1880-1943)
120 x 140 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents:
Karl and Milly Marbe in the 1930s
120 x 120 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents:
Carl Jesinghaus (1886-1948)
150 x 100 x 2.5 cm (h x w x d)
The Center for the History of Psychology presents: