Craig, J. (1979). A confusion matrix for tactually
presented letters. Perception & Psychophysics,26, 409-411.
Summary:
Procedure:
Experimenter presented a confusion matrix for letter
identification of vibrating tactile display of the Optacon,
a reading aid for the blind. Stimuli were presented for
between 4 and 100 ms.
Stimuli
Letters were generated on a 6 by 18 dot matrix.
Image depicting the configuration of letters will be
forthcoming.
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