Fig. 1.

Illustration of the procedure designed to explore simultaneity/asynchrony discrimination. Two squares are filled in, in gray, either simultaneously or asynchronously. These two squares were unconnected in Lalanne et al (2012a) (a), whereas half of them were connected in Lalanne et al. (2012b) (b). Participants are instructed to respond with the right key when they think that the squares are filled in asynchronously and the left key when they think that filling-in occurs simultaneously.