Figure 1. Experimental setup and presentation of video stimuli.

A) The participant was seated in front of a computer screen and the two boxes. Removable front panels on the boxes were used to create one of two conditions: blue – tactile stimulation / yellow- no stimulation, or yellow – tactile stimulation / blue – no tactile stimulation. B) Schematic depicting the structure of each trial. Video clips depicted an actor performing a reach into a yellow or blue box. After a brief delay, the appearance of a star prompted the participant reach into the box of the same color. The boxes visible in the video clips were angled such that it was impossible to see if there was tactile stimulation inside the box.