Search Results - "Howard, Ian P."

Illusory scene distortion occurs during perceived self-rotation in roll by Palmisano, Stephen, Allison, Robert S., Howard, Ian P.

“…We report a novel illusory distortion of the visual scene, which became apparent during both: (i) observer rotation inside a furnished stationary room; and…”
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The cyclopean eye in vision: the new and old data continue to hit you right between the eyes by Ono, Hiroshi, Mapp, Alistair P, Howard, Ian P

“…We argue against recent claims by Erkelens and van Ee (Vision Res., in press) and by Erkelens (Vision Res. 40 (2000) 2411) that “the concept of the cyclopean…”
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Vertical-disparity gradients are processed independently in different depth planes by Duke, Philip A., Howard, Ian P.

“…We examined the effects of vertical-disparity gradients on apparent depth curvature of textured surfaces. In Experiment 1, vertical disparities induced…”
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Visually induced reorientation illusions by Howard, I. P., Hu, G., Oman, C. M.

“…It is known that rotation of a furnished room around the roll axis of erect subjects produces an illusion of 360 degrees self-rotation in many subjects…”
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Vergence eye movements are not essential for stereoscopic depth by Lugtigheid, Arthur J., Wilcox, Laurie M., Allison, Robert S., Howard, Ian P.

“…The brain receives disparate retinal input owing to the separation of the eyes, yet we usually perceive a single fused world. This is because of complex…”
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Effects of disparity–perspective cue conflict on depth contrast by Sato, Masayuki, Howard, Ian P

“…The role of disparity–perspective cue conflict in depth contrast was examined. A central square and a surrounding frame were observed in a stereoscope. Five…”
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Shape constancy measured by a canonical-shape method by Howard, Ian P., Fujii, Yoshitaka, Allison, Robert S., Kirollos, Ramy

“…•Shape constancy was measured with an unambiguous canonical-shape method.•Observers discriminated inclined trapezoids from a rectangle (the canonical…”
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Effect of field size, head motion, and rotational velocity on roll vection and illusory self-tilt in a tumbling room by Allison, R. S., Howard, I. P., Zacher, J. E., Oman, C. M.

“…The effect of field size, velocity, and visual fixation upon the perception of self-body rotation and tilt was examined in a rotating furnished room. Subjects…”
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Interactions between cues to visual motion in depth by Howard, Ian P, Fujii, Yoshitaka, Allison, Robert S

“…Information about the motion in depth of an object along the midline of a stationary observer is provided by changes in image size (looming), changes in…”
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Drawing with Divergent Perspective, Ancient and Modern by Howard, Ian P, Allison, Robert S

“…Before methods for drawing accurately in perspective were developed in the 15th century, many artists drew with divergent perspective. But we found that many…”
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Motion aftereffect in depth based on binocular information by Sakano, Yuichi, Allison, Robert S, Howard, Ian P

“…We examined whether a negative motion aftereffect occurs in the depth direction following adaptation to motion in depth based on changing disparity and/or…”
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Processing vertical size disparities in distinct depth planes by Duke, Philip A, Howard, Ian P

“…A textured surface appears slanted about a vertical axis when the image in one eye is horizontally enlarged relative to the image in the other eye. The surface…”
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A reevaluation of the tolerance to vertical misalignment in stereopsis by Fukuda, Kazuho, Wilcox, Laurie M, Allison, Robert S, Howard, Ian P

“…The stereoscopic system tolerates some vertical misalignment of the images in the eyes. However, the reported tolerance for an isolated line stimulus…”
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The dichoptiscope: an instrument for investigating cues to motion in depth by Howard, Ian P, Fukuda, Kazuho, Allison, Robert S

“…A stereoscope displays 2-D images with binocular disparities (stereograms), which fuse to form a 3-D stereoscopic object. But a stereoscopic object creates a…”
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Spatial Properties of Shear Disparity Processing by KANEKO, HIROHIKO, HOWARD, IAN P

“…We investigated whether vertical-shear disparity was extracted from the whole visual field or from a more local area and how global estimates of vertical…”
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Perceived Depth in the ‘Sieve Effect’ and Exclusive Binocular Rivalry by Matsumiya, Kazumichi, Howard, Ian P, Kaneko, Hirohiko

“…An impression of a surface seen through holes is created when one fuses dichoptic pairs of discs, with one member of each pair black and the other member…”
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Detection of the depth order of defocused images by Nguyen, Vincent A., Howard, Ian P., Allison, Robert S.

“…The sign of an accommodative response is provided by differences in chromatic aberration between under- and over-accommodated images. We asked whether these…”
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Temporal aspects of slant and inclination perception by Allison, R S, Howard, I P, Rogers, B J, Bridge, H

“…Linear transformations (shear or scale transformations) of either horizontal or vertical disparity give rise to the percept of slant or inclination. It has…”
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Neurons that respond to more than one depth cue by Howard, Ian P

“…The 3D orientation of a surface can be specified by perspective, motion parallax or binocular disparity. Tsutsui et al. have found cells in the monkey…”
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Depth interactions between inclined and slanted surfaces in vertical and horizontal orientations by Pierce, B J, Howard, I P, Feresin, C

“…Depth interactions between a frontal test surface and an adjacent induction surface were measured as a function of the type of disparity in the induction…”
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