A cyclopean visual saltation illusion reveals perceptual grouping in three-dimensional space.

  title={A cyclopean visual saltation illusion reveals perceptual grouping in three-dimensional space.},
  author={Sieu K. Khuu and Joanna C Kidd and Jack Phu and Shazaan Khambiye},
  journal={Journal of vision},
  volume={10 14}
When a number of visual elements are presented briefly one after the other at two separate locations, mislocalization occurs with elements perceived "jumping" evenly across the space between locations. This is the visual saltation illusion. We investigated whether saltation occurs in three-dimensional (3D) space. In separate experiments, observers judged the perceived positions of the first, second, and last elements for a sequence in which the first two elements were presented at one location… 

Figures from this paper

The influence of spatial orientation on the perceived path of visual saltatory motion.
The findings reveal that the interpretation of visual saltation arises from high-level computations in which the percept is derived through an interaction of form and motion.


The effect of motion adaptation on the position of elements in the visual saltation illusion.
The results indicate that the impact of motion adaptation on position is dependent on the perceived, and not the physical, location of elements.
Auditory saltation: a new measure for an old illusion.
The temporal parameters of this illusion are investigated with click stimuli delivered via headphones with the goal of establishing a portable test of the illusion.
Saltation through the blind spot
People reported their observations when Geldard’s visual rabbit was induced by stimulating points around the optic disk, and the illusory point was often localized within the region of the blind spot.
Stereoscopic vision and the duration of the stimulus.
Dove (1841) showed that stereoscopic depth could be perceived when drawings viewed in a stereoscope were illuminated by a flash of very short duration from an electric spark, and the results of this experiment have been cited as evidence that neither convergence movements of the eyes nor proprioceptive influences from the external muscles of the Eyes are necessary for a stereoscopic perception of depth.
Perceptual grouping in space and time: Evidence from the Ternus display
It is argued that grouping in the spatial and temporal domains interact to yield perceptual experience of apparent-motion displays by finding that grouping influenced apparent motion perception.
Spatial and temporal factors in auditory saltation.
The data indicated that saltation is supported by dichotic clicks, regardless of the stimulus manipulation used to generate the lateralized images, and that for the range of ICIs used here, saltation weakened as the stimuli became more strongly lateralized.
Primary Visual Cortex Activity along the Apparent-Motion Trace Reflects Illusory Perception
The data suggest that primary visual cortex (V1) is part of the network that represents the illusory path of apparent motion, and can be explained by lateral interactions within V1 or by feedback mechanisms from higher visual areas, especially the motion-sensitive human MT/V5 complex.
Bi-directional illusory position shifts toward the end point of apparent motion