Kikuchi, T., Yamashita, Y., Sagawa, K., and Wake,
T. (1979). An analysis of tactile letter
confusions. Perception & Psychophysics, 26,
295-301.
Summary:
Procedure:
Experimenter provides a confusion matrix for whole block
capital letters, using a 17x17 matrix of tactile stimulators
placed against the participants' backs.
Stimuli
Letters were presented in a 17 x 17 tactile array on the
participants back, for approximately 200-300 ms.
A scanned reproduction of the letters from the original
article is shown below.
Results
The confusion matrix are available here. For this matrix, each row
represents a presented stimulus, and each column a
response. Four blind subjects produced a total of 127
observations of each letter.
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