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Discrimination of real and virtual surfaces with sinusoidal and triangular gratings using the fingertip and stylus  (2013)
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Two-interval two-alternative forced-choice discrimination experiments were conducted separately for sinusoidal and triangular textured surface gratings from which amplitude (ie, height) discrimination thresholds were estimated. Participants (group sizes: n= 4 to 7) explored one of these texture types either by fingertip on real gratings (Finger-real), by stylus on real gratings (Stylus-real), or by stylus on virtual gratings (Stylus-virtual).
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Discrimination, fingertip, gratings, real, sinusoidal, stylus, surfaces, triangular, virtual
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IEEE Transactions on Haptics, 6(2), 181-192
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Curator: Phil So
NASA Official: Alonso Vera
Last Updated: August 15, 2019