(Asthesiometer nach Ebbinghaus.)
Description: Similar to the two point device by von Frey, this
device substitutes two ivory points for the hairs used by von
Frey. The device is used to determine how closely two pressure
points can be placed before the two points are identified as a
single point of stimulation. (Expanded caption Copyright 1998,
Edward J. Haupt)
(Source: None given.)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis-
Liste über psychologische und physiologische Apparate
(p. 115). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: Research device
Stimulus: Touch (pressure)
System: Touch
Output: Touch detection