scholarly journals Spatial and temporal tuning of motion-in-depth perception

2010 ◽  
Vol 2 (7) ◽  
pp. 117-117
Author(s):  
M. Lages ◽  
P. Mamassian ◽  
E. W. Graf
Keyword(s):  
Depth Perception ◽  
Motion In Depth

scholarly journals Motion in depth perception of strabismic patients

2004 ◽  
Vol 4 (8) ◽  
pp. 464-464
Author(s):  
Y. Watanabe ◽  
M. Tomita ◽  
K. Harasawa ◽  
M. Usui ◽  
S. Shioiri ◽  
...  
Keyword(s):  
Depth Perception ◽  
Motion In Depth

When Texture Takes Precedence over Motion in Depth Perception

Perception ◽  
10.1068/p2955 ◽  
2000 ◽  
Vol 29 (4) ◽  
pp. 437-452 ◽  
Author(s):  
Justin O'Brien ◽  
Alan Johnston
Keyword(s):  
Depth Perception ◽  
Motion In Depth

scholarly journals Motion-in-depth perception and prey capture in the praying mantis Sphodromantis lineola

2019 ◽  
Vol 222 (11) ◽  
pp. jeb198614 ◽  
Author(s):  
Vivek Nityananda ◽  
Coline Joubier ◽  
Jerry Tan ◽  
Ghaith Tarawneh ◽  
Jenny C. A. Read
Keyword(s):  
Depth Perception ◽  
Prey Capture ◽  
Praying Mantis ◽  
Motion In Depth

scholarly journals fMRI reveals S-cone and achromatic contributions to motion-in-depth perception

2017 ◽  
Vol 17 (10) ◽  
pp. 602
Author(s):  
Milena Kaestner ◽  
Ryan Maloney ◽  
Marina Bloj ◽  
Julie Harris ◽  
Alex Wade
Keyword(s):  
Depth Perception ◽  
Motion In Depth

scholarly journals A new method for assessing motion-in-depth perception in strabismic patients

2007 ◽  
Vol 92 (1) ◽  
pp. 47-50 ◽  
Author(s):  
Y Watanabe ◽  
T Kezuka ◽  
K Harasawa ◽  
M Usui ◽  
H Yaguchi ◽  
...  
Keyword(s):  
Depth Perception ◽  
New Method ◽  
Motion In Depth

Enhancing Motion-In-Depth Perception of Random-Dot Stereograms

Perception ◽  
2018 ◽  
Vol 47 (7) ◽  
pp. 722-734 ◽  
Author(s):  
Di Zhang ◽  
Vincent Nourrit ◽  
Jean-Louis De Bougrenet de la Tocnaye
Keyword(s):  
Binocular Vision ◽  
Depth Perception ◽  
Training Session ◽  
Neural Mechanisms ◽  
Stimulus Contrast ◽  
Motion In Depth ◽  
Direction Discrimination ◽  
Random Dot Stereograms ◽  
Background Texture ◽  
Stimulus Design

Random-dot stereograms have been widely used to explore the neural mechanisms underlying binocular vision. Although they are a powerful tool to stimulate motion-in-depth (MID) perception, published results report some difficulties in the capacity to perceive MID generated by random-dot stereograms. The purpose of this study was to investigate whether the performance of MID perception could be improved using an appropriate stimulus design. Sixteen inexperienced observers participated in the experiment. A training session was carried out to improve the accuracy of MID detection before the experiment. Four aspects of stimulus design were investigated: presence of a static reference, background texture, relative disparity, and stimulus contrast. Participants’ performance in MID direction discrimination was recorded and compared to evaluate whether varying these factors helped MID perception. Results showed that only the presence of background texture had a significant effect on MID direction perception. This study provides suggestions for the design of 3D stimuli in order to facilitate MID perception.

scholarly journals Motion-in-depth perception and prey capture in the praying mantis

2018 ◽  
Author(s):  
Vivek Nityananda ◽  
Coline Joubier ◽  
Jerry Tan ◽  
Ghaith Tarawneh ◽  
Jenny C A Read
Keyword(s):  
Depth Perception ◽  
Prey Capture ◽  
Radial Motion ◽  
Praying Mantis ◽  
Motion In Depth ◽  
Series Of Experiments

Perceiving motion-in-depth is essential to detecting approaching or receding objects, predators and prey. This can be achieved using several cues, including binocular stereoscopic cues such as changing disparity and interocular velocity differences and monocular cues such as looming. While these have been studied in detail in humans, only looming responses have been well characterized in insects and we know nothing about the role that stereo cues play and how they might interact with looming cues. We used our 3D insect cinema in a series of experiments to investigate the role of the stereo cues mentioned above, as well as looming, in the perception of motion-in-depth during predatory strikes by the praying mantis. Our results show that motion-in-depth does increase the probability of mantis strikes but only for the classic looming stimulus, an expanding luminance edge. Approach indicated by radial motion of a texture or expansion of a motion-defined edge, or by stereoscopic cues, all failed to elicit increased striking. We conclude that mantises use stereopsis to detect depth but not motion-in-depth, which is detected via looming.

scholarly journals Mis-perception of motion in depth originates from an incomplete transformation of retinal signals

2018 ◽  
Author(s):  
T. Scott Murdison ◽  
Guillaume Leclercq ◽  
Philippe Lefèvre ◽  
Gunnar Blohm
Keyword(s):  
Depth Perception ◽  
Geometric Model ◽  
Retinal Images ◽  
Contextual Cues ◽  
Spatial Direction ◽  
Motion In Depth ◽  
Retinal Motion ◽  
Isolated Point ◽  
Perceived Motion ◽  
The Brain

AbstractDepth perception requires the use of an internal model of the eye-head geometry to infer distance from binocular retinal images and extraretinal 3D eye-head information, particularly ocular vergence. Similarly for motion in depth perception, gaze angle is required to correctly interpret the spatial direction of motion from retinal images; however, it is unknown whether the brain can make adequate use of extraretinal version and vergence information to correctly interpret binocular retinal motion for spatial motion in depth perception. Here, we tested this by asking participants to reproduce the perceived spatial trajectory of an isolated point stimulus moving on different horizontal-depth paths either peri-foveally or peripherally while participants’ gaze was oriented at different vergence and version angles. We found large systematic errors in the perceived motion trajectory that reflected an intermediate reference frame between a purely retinal interpretation of binocular retinal motion (ignoring vergence and version) and the spatially correct motion. A simple geometric model could capture the behavior well, revealing that participants tended to underestimate their version by as much as 17%, overestimate their vergence by as much as 22%, and underestimate the overall change in retinal disparity by as much as 64%. Since such large perceptual errors are not observed in everyday viewing, we suggest that other monocular and/or contextual cues are required for accurate real-world motion in depth perception.

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