The Chevreul illusion is a well-known 19th century brightness illusion, comprising adjacent
homogeneous grey bands of different luminance, which are perceived as inhomogeneous. It …

It is well known that a staircase luminance profile is not seen veridically, but appears as the
scallopy-likeChevreul illusion. We have shown that adding thin lines (either light or dark) to …

In the horizontal-vertical illusion (HVI), the length of the vertical line is overestimated,
whereas in the bisection illusion (BI), the horizontal bisecting line is expected to be …

A central bar presented in counterphase with two flanking bars creates the perception of
only two bars, instead of three, flickering (standing wave of invisibility illusion). Current …

Brightness induction refers to a class of visual illusions where the perceived intensity of a
region of space is influenced by the luminance of surrounding regions. These illusions are …

32 undergraduates participated in each of two experiments designed to determine how
structural manipulations of the parallel lines figure affect the resulting illusion. Collectively …

A square filled with parallel horizontal or vertical lines appears perceptually extended in the
direction orthogonal to the lines. Here, we suggest that this Helmholtz illusion arises due to …

Brightness illusions demonstrate that an object's perceived brightness depends on its visual
context, leading to theoretical explanations ranging from simple lateral inhibition to those …

When a brief lateral cue precedes an instantaneously presented horizontal line, observers
report a sensation of motion in the line propagating from the cued end toward the uncued …

Perception of 2-D ellipses on a picture surface is inaccurate—if the ellipses depict circles
that are tilted in 3-D, receding from the viewer (Hammad, Kennedy, Juricevic, & Rajani …