Abstract
A signal-detection (TSD) approach was used to determine a difference limen (DL) for supraliminal two-point tactual stimuli applied to the back. Using a standard stimulus of 80 mm, the DL for four male Ss appeared to lie between 10–15 mm. This DL was larger than one previously reported for the dorsal forearm, in harmony with the fact that the two-point threshold is larger for the back than for the forearm.
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References
CROSS, H. A., BOYER, W. N., & GUYOT, G. W. Determination of a DL using two-point tactual stimuli: A signal-detection approach. Psychonomic Science, 1970, 00, 000-000.
GREEN, D. M., & SWETS, J. A. Signal detection theory and psychophysics. New York: Wiley, 1966.
HILGARD, E. R. Introduction to psychology. New York: Harcourt, Brace, & World, 1953.
UNDERWOOD, B. J. Experimental psychology. New York: Appleton-Century-Crofts, 1966.
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Boyer, W.N., Cross, H.A., Guyot, G.W. et al. A TSD determination of a DL using two-point tactual stimuli applied to the back. Psychon Sci 21, 195–196 (1970). https://doi.org/10.3758/BF03332438
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DOI: https://doi.org/10.3758/BF03332438