Perceptually Plausible Sounds Facilitate Visually Induced Self-Motion Perception (Vection)

Perception ◽  
10.1068/p7184 ◽  
2012 ◽  
Vol 41 (5) ◽  
pp. 577-593 ◽  
Author(s):  
Takeharu Seno ◽  
Emi Hasuo ◽  
Hiroyuki Ito ◽  
Yoshitaka Nakajima
Keyword(s):  
Motion Perception ◽  
Visual Motion ◽  
Visual Stimuli ◽  
Horizontal Direction ◽  
Auditory Stimuli ◽  
Motion Field ◽  
Self Motion

We examined whether and how sounds influence visually induced illusory self-motion (vection). Visual stimuli were presented for 40 s. They were made radially, expanding or contracting visual motion field and luminance-defined gratings drifting in a vertical or horizontal direction. Auditory stimuli were presented with the visual stimuli in most conditions; we employed sounds that increased or decreased in intensity, or ascended or descended in frequency. As a result, the sound which increased in intensity facilitated forward vection, and the sound which ascended/descended in frequency facilitated upward/downward vection. The perceptual plausibility of the sound for the corresponding self-motion seemed an important factor of enhancing vection.

Vertical linear self-motion perception during visual and inertial motion: More than weighted summation of sensory inputs

2005 ◽  
Vol 15 (4) ◽  
pp. 185-195 ◽  
Author(s):  
W.G. Wright ◽  
P. DiZio ◽  
J.R. Lackner
Keyword(s):  
Motion Perception ◽  
Visual Motion ◽  
Test Chamber ◽  
Vestibular Stimulation ◽  
Visual Scene ◽  
Inertial Motion ◽  
Physical Test ◽  
Head Mounted Display ◽  
Linear Oscillation ◽  
Self Motion

We evaluated visual and vestibular contributions to vertical self motion perception by exposing subjects to various combinations of 0.2 Hz vertical linear oscillation and visual scene motion. The visual stimuli presented via a head-mounted display consisted of video recordings of the test chamber from the perspective of the subject seated in the oscillator. In the dark, subjects accurately reported the amplitude of vertical linear oscillation with only a slight tendency to underestimate it. In the absence of inertial motion, even low amplitude oscillatory visual motion induced the perception of vertical self-oscillation. When visual and vestibular stimulation were combined, self-motion perception persisted in the presence of large visual-vestibular discordances. A dynamic visual input with magnitude discrepancies tended to dominate the resulting apparent self-motion, but vestibular effects were also evident. With visual and vestibular stimulation either spatially or temporally out-of-phase with one another, the input that dominated depended on their amplitudes. High amplitude visual scene motion was almost completely dominant for the levels tested. These findings are inconsistent with self-motion perception being determined by simple weighted summation of visual and vestibular inputs and constitute evidence against sensory conflict models. They indicate that when the presented visual scene is an accurate representation of the physical test environment, it dominates over vestibular inputs in determining apparent spatial position relative to external space.

Changing Pitch of Sounds Alters Perceived Visual Motion Trajectory

2013 ◽  
Vol 26 (4) ◽  
pp. 317-332 ◽  
Author(s):  
Yasuhiro Takeshima ◽  
Jiro Gyoba
Keyword(s):  
Visual Field ◽  
Visual Perception ◽  
Motion Perception ◽  
Visual Motion ◽  
Auditory Stimuli ◽  
Motion Trajectory ◽  
Illusory Motion ◽  
Central Visual Field ◽  
Visual Motion Perception ◽  
Visual Inputs

Several studies have examined the effects of auditory stimuli on visual perception. In studies of cross-modal correspondences, auditory pitch has been shown to modulate visual motion perception. In particular, low-reliability visual motion stimuli tend to be affected by metaphorically or physically congruent or incongruent sounds. In the present study, we examined the modulatory effects of auditory pitch on visual perception of motion trajectory for visual inputs of varying reliability. Our results indicated that an auditory pitch implying the illusory motion toward the outside of the visual field-modulated perceived motion trajectory. In contrast, auditory pitch implying the illusory motion toward the central visual field did not affect the perception of motion trajectory. This asymmetrical effect of auditory stimuli occurred depending on the reliability of the visual input. Moreover, sounds that corresponded in terms of their pitch-elevation mapping altered the perception of the trajectory of visual motion when apparent motion could be perceived smoothly. Therefore, the present results demonstrate that auditory stimuli modulate visual motion perception especially when smooth motion is perceived in the peripheral visual field.

Separate Presentation of Additional Accelerating Motion Does not Enhance Visually Induced Self-Motion Perception

2013 ◽  
Vol 26 (3) ◽  
pp. 277-285 ◽  
Author(s):  
Shinji Nakamura
Keyword(s):  
Motion Perception ◽  
Visual Motion ◽  
Main Axis ◽  
Psychophysical Experiment ◽  
Simple Hypothesis ◽  
Expansion Pattern ◽  
Perception Of Self ◽  
Oscillating Motion ◽  
Self Motion ◽  
Perceptual Mechanism

It has been repeatedly reported that visual stimuli containing a jittering/oscillating motion component can induce self-motion perception more strongly than a pure radial expansion pattern. A psychophysical experiment with 11 observers revealed that the additional accelerating components of the visual motion have to be convoluted with the motion of the main-axis to facilitate self-motion perception; additional motion presented in an isolated fashion impairs the perception of self-motion. These results are inconsistent with a simple hypothesis about the perceptual mechanism underlying the advantage of jitter/oscillation, which assumes that the accelerating component induces an additional self-motion independently of the main motion at the first stage, and then the two self-motions induced by the main motion and the additional component become integrated.

Attentional Modulation of Self-Motion Perception

Perception ◽  
10.1068/p5037 ◽  
2003 ◽  
Vol 32 (4) ◽  
pp. 475-484 ◽  
Author(s):  
Michiteru Kitazaki ◽  
Takao Sato
Keyword(s):  
Motion Perception ◽  
Visual Motion ◽  
Depth Plane ◽  
Relative Depth ◽  
Attentional Modulation ◽  
Motion Energy ◽  
Large Display ◽  
Attentional Effect ◽  
Self Motion ◽  
Direction Opposite

Attentional effects on self-motion perception (vection) were examined by using a large display in which vertical stripes containing upward or downward moving dots were interleaved to balance the total motion energy for the two directions. The dots moving in the same direction had the same colour, and subjects were asked to attend to one of the two colours. Vection was perceived in the direction opposite to that of non-attended motion. This indicates that non-attended visual motion dominates vection. The attentional effect was then compared with effects of relative depth. Clear attentional effects were again found when there was no relative depth between dots moving in opposite directions, but the effect of depth was much stronger for stimuli with a relative depth. Vection was mainly determined by motion in the far depth plane, although some attentional effects were evident even in this case. These results indicate that attentional modulation for vection exists, but that it is overridden when there is a relative depth between the two motion components.

Motion Processing in Primates

2017 ◽  
Author(s):  
Tyler S. Manning ◽  
Kenneth H. Britten
Keyword(s):  
Motion Perception ◽  
Moving Objects ◽  
Visual Motion ◽  
Experimental Manipulation ◽  
Image Motion ◽  
Motion Processing ◽  
Entire Visual Field ◽  
Self Motion ◽  
Physiological Research ◽  
Support Motion

The ability to see motion is critical to survival in a dynamic world. Decades of physiological research have established that motion perception is a distinct sub-modality of vision supported by a network of specialized structures in the nervous system. These structures are arranged hierarchically according to the spatial scale of the calculations they perform, with more local operations preceding those that are more global. The different operations serve distinct purposes, from the interception of small moving objects to the calculation of self-motion from image motion spanning the entire visual field. Each cortical area in the hierarchy has an independent representation of visual motion. These representations, together with computational accounts of their roles, provide clues to the functions of each area. Comparisons between neural activity in these areas and psychophysical performance can identify which representations are sufficient to support motion perception. Experimental manipulation of this activity can also define which areas are necessary for motion-dependent behaviors like self-motion guidance.

scholarly journals Physiological Analysis of Self-motion Perception Induced by Visual Stimuli

2006 ◽  
Vol 60 (4) ◽  
pp. 589-596 ◽  
Author(s):  
Reiko Goto ◽  
Hiroaki Kudo ◽  
Kohei Sato ◽  
Norio Hotta ◽  
Koji Ishida ◽  
...  
Keyword(s):  
Motion Perception ◽  
Visual Stimuli ◽  
Physiological Analysis ◽  
Self Motion

scholarly journals Activity Strength within Optic Flow-Sensitive Cortical Regions Is Associated with Visual Path Integration Accuracy in Aged Adults

2021 ◽  
Vol 11 (2) ◽  
pp. 245
Author(s):  
Lauren Zajac ◽  
Ronald Killiany
Keyword(s):  
Motion Perception ◽  
Optic Flow ◽  
Path Integration ◽  
Visual Motion ◽  
Spatial Navigation ◽  
Motion Processing ◽  
Global Pattern ◽  
Age Related ◽  
Cortical Regions ◽  
Self Motion

Spatial navigation is a cognitive skill fundamental to successful interaction with our environment, and aging is associated with weaknesses in this skill. Identifying mechanisms underlying individual differences in navigation ability in aged adults is important to understanding these age-related weaknesses. One understudied factor involved in spatial navigation is self-motion perception. Important to self-motion perception is optic flow–the global pattern of visual motion experienced while moving through our environment. A set of optic flow-sensitive (OF-sensitive) cortical regions was defined in a group of young (n = 29) and aged (n = 22) adults. Brain activity was measured in this set of OF-sensitive regions and control regions using functional magnetic resonance imaging while participants performed visual path integration (VPI) and turn counting (TC) tasks. Aged adults had stronger activity in RMT+ during both tasks compared to young adults. Stronger activity in the OF-sensitive regions LMT+ and RpVIP during VPI, not TC, was associated with greater VPI accuracy in aged adults. The activity strength in these two OF-sensitive regions measured during VPI explained 42% of the variance in VPI task performance in aged adults. The results of this study provide novel support for global motion processing as a mechanism underlying visual path integration in normal aging.

Color effects on self-motion perception

2006 ◽  
Author(s):  
Frederick Bonato ◽  
Andrea Bubka
Keyword(s):  
Motion Perception ◽  
Self Motion
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