Sinusoidal modulation of radial speed around a circular path of tangentially oriented Gabor
patches results in the percept of modulation of the radius. These patterns have been called …

Radial frequency (RF) patterns, paths deformed from circular by a sinusoidal modulation of
radius, have proved valuable stimuli for investigation of visual shape processing. Their utility …

We report several experiments showing that a Gabor patch moving in apparent motion
sequences appears much faster when its orientation is aligned with the motion path than …

It is well established that the visual system is sensitive to the global structure––or “form”––of
objects defined exclusively by spatial or motion cues, but it remains unclear how form …

How does nearby motion affect the perceived speed of a target region? When a central
drifting Gabor patch is surrounded by translating noise, its speed can be misperceived over …

Radial frequency (RF) patterns, which are sinusoidal modulations of a radius in polar
coordinates, are commonly used to study shape perception. Previous studies have argued …

When the sinusoidal grating of a “Gabor pattern” is drifted, the apparent position of the
pattern shifts in the direction of motion [De Valois, RL, & De Valois, KK (1991). Vernier acuity …

We determined two-dimensional motion discrimination contours in the spatio-temporal
frequency plane to characterize the mechanisms underlying velocity perception. In …

Radial frequency (RF) patterns, shapes deformed from circular by a sinusoidal modulation of
radius, have been used to demonstrate global integration of shape information around a …

We have measured the perceived direction of motion of rigid patterns containing texture
boundaries at various orientations. Texture boundaries are defined here as the locus of 180° …