We describe a computer-controlled device for investigating the sense of touch: the Tactile Automated Passive-finger Stimulator (TAPS). We describe the components of TAPS, and show how TAPS is used to administer a two-interval forced-choice tactile grating orientation test.
Goldreich, D., Wong, M., Peters, R. M., Kanics, I. M. A Tactile Automated Passive-Finger Stimulator (TAPS). J. Vis. Exp. (28), e1374, doi:10.3791/1374 (2009).