Figure 3
From: Reduced influence of perceptual context in mild traumatic brain injury is not an illusion
Example images of the two parallel lines in the no context condition (Panel (a)) and the context condition (Panel (b)). In both conditions, the parallel lines are equivalent in length. However, in the context condition (Panel (b)), perception of the length of the line is distorted by the presence of outward or inward pointing arrowheads at the ends of the line. The upper line is typically perceived to be longer than the bottom line (Müller-Lyer illusion).
