A slowly moving foreground can capture an observer’s self-motion — a report of a new motion illusion: inverted vection

We investigated interactions between foreground and background stimuli during visually induced perception of self-motion (vection) by using a stimulus composed of orthogonally moving random-dot patterns. The results indicated that, when the foreground moves with a slower speed, a self-motion sensation with a component in the same direction as the foreground is induced. We named this novel component of self-motion perception 'inverted vection'. The robustness of inverted vection was confirmed using various measures of self-motion sensation and under different stimulus conditions. The mechanism underlying inverted vection is discussed with regard to potentially relevant factors, such as relative motion between the foreground and background, and the interaction between the mis-registration of eye-movement information and self-motion perception.

[1]  I. Howard,et al.  Vection: The Contributions of Absolute and Relative Visual Motion , 1994, Perception.

[2]  W. Epstein,et al.  Perception of space and motion , 1995 .

[3]  J P Landolt,et al.  Circular Vection as a Function of Foreground-Background Relationships , 1987, Perception.

[4]  S. Shimojo,et al.  Critical Role of Foreground Stimuli in Perceiving Visually Induced Self-Motion (Vection) , 1999, Perception.

[5]  Maggie Shiffrar,et al.  Motion integration across differing image features , 1995, Vision Research.

[6]  Constance S. Royden,et al.  Human heading judgments in the presence of moving objects , 1996, Perception & psychophysics.

[7]  D Regan,et al.  How do we avoid confounding the direction we are looking and the direction we are moving? , 1982, Science.

[8]  I P Howard,et al.  Effect of Stationary Objects on Illusory Forward Self-Motion Induced by a Looming Display , 1988, Perception.

[9]  T. Heckmann,et al.  Circular Vection as a Function of the Relative Sizes, Distances, and Positions of Two Competing Visual Displays , 1989, Perception.

[10]  J. Gibson.  The Ecological Approach to Visual Perception , 1979 .

[11]  R. B. Post,et al.  The sum of induced and real motion is not a straight path , 1988, Perception & psychophysics.

[12]  K. Nakayama,et al.  A Velocity Analogue of Brightness Contrast , 1973, Perception.

[13]  James A. Crowell,et al.  Estimating heading during real and simulated eye movements , 1996, Vision Research.

[14]  A. Delorme,et al.  Roles of retinal periphery and depth periphery in linear vection and visual control of standing in humans. , 1986, Canadian journal of psychology.

[15]  I P Howard,et al.  Induced Motion: Isolation and Dissociation of Egocentric and Vection-Entrained Components , 1991, Perception.

[16]  D. R MESTRE,et al.  Ocular Responses to Motion Parallax Stimuli: The Role of Perceptual and Attentional Factors , 1997, Vision Research.

[17]  Hans Wallach.  Über visuell wahrgenommene Bewegungsrichtung , 1935 .

[18]  R. Wurtz,et al.  An illusory transformation of optic flow fields , 1993, Vision Research.

[19]  E. Wist,et al.  Foreground and background in dynamic spatial orientation , 1975 .

[20]  James A. Crowell,et al.  The perception of heading during eye movements , 1992, Nature.

[21]  H W Leibowitz,et al.  Implications of OKN suppression by smooth pursuit for induced motion , 1984, Perception & psychophysics.

[22]  William H. Warren,et al.  Chapter 8 – Self-Motion: Visual Perception and Visual Control , 1995 .

[23]  B J Frost,et al.  Linear Vection in the Central Visual Field Facilitated by Kinetic Depth Cues , 1992, Perception.

[24]  Vision Research , 1961, Nature.