Figure 1

Recording and tactile items. (A) Left: participants were blindfolded and sat next to a table carrying the tactile object. Right: the glove used with four designated Vicon markers attached to it. Two markers were attached above the wrist carpal bones and two above the middle and proximal phalanx of the middle finger. (B) Tactile items. Right: two sets of tactile items were used: Objects (left) and Features (right). Objects were divided into set A (top, black) and set B (bottom, blue). Features were divided into three blocks: Angle (left), Tilt (middle) and Curvature (right). For all tactile items, the colored area was raised by 25 µm relative to the background area. Left: an illustration of the metal board that tactile items were engraved on (in this case—hexagon). Scale bar indicates height differences (mm).