Perceiving geographical slant
Reads0
Chats0
TLDR
It is proposed that the perceived exaggeration of geographical slant preserves the relationship between distal inclination and people’s behavioral potential, thereby enhancing sensitivity to the small inclines that must actually be traversed in everyday experience.Abstract:
People judged the inclination of hills viewed either out-of-doors or in a computer-simulated virtual environment Angle judgments were obtained by having people (1) provide verbal estimates, (2) adjust a representation of the hill’s cross-section, and (3) adjust a tilt board with their unseen hand Geographical slant was greatly overestimated according to the first two measures, but not the third Apparent slant judgments conformed to ratio scales, thereby enhancing sensitivity to the small inclines that must actually be traversed in everyday experience It is proposed that the perceived exaggeration of geographical slant preserves the relationship between distal inclination and people’s behavioral potential Hills are harder to traverse as people become tired; hence, apparent slant increased with fatigue Visually guided actions must be accommodated to the actual distal properties of the environment; consequently, the tilt board adjustments did not reflect apparent slant overestimations, nor were they influenced by fatigue Consistent with the fact that steep hills are more difficult to descend than to ascend, these hills appeared steeper when viewed from the topread more
Citations
More filters
Journal ArticleDOI
Slant Perception in Near Space is Categorically Biased: Evidence for a Vertical Tendency
TL;DR: The visual and haptic perception of the geographical slant of surfaces within reach under full-cue conditions are examined to show that the perceived orientation of even these surfaces is biased and an exaggeration with respect to deviations from horizontal is shown to be present cross-modally.
Journal ArticleDOI
Foundations of spatial vision: from retinal images to perceived shapes.
Joseph S. Lappin,Warren D. Craft +1 more
TL;DR: Experiments on hyperacuities for detecting relative motion and binocular disparity among separated image features showed that spatial positions are visually specified by the surrounding optical pattern rather than by retinal coordinates, minimally affected by random image perturbations produced by 3-D object motions.
Journal ArticleDOI
Psychosocial resources, threat, and the perception of distance and height: Support for the resources and perception model.
TL;DR: Two studies confirm that resourcesmoderate the physical perception of both distance and height, that resources moderate perception of threats but not nonthreats, that different resources have similar moderating effects, and that psychosocial resources can supplant physical resources.
Posted Content
Ratios: A short guide to confidence limits and proper use
TL;DR: In this article, a simple geometrical interpretation is given for the Fieller method and Monte Carlo simulations show when these methods are appropriate and that the most frequently used methods (index method and zero-variance method) can lead to large liberal deviations from the desired confidence level.
Journal ArticleDOI
Downhill slopes look shallower from the edge.
Zhi Li,Frank H. Durgin +1 more
TL;DR: A model of orientation constancy failure is fit to the data that combine exaggerations in perceived gaze declination with exaggerated scaling of perceived optical slant to support a functional scale-expansion model of error in slope perception.
References
More filters
Book
The Ecological Approach to Visual Perception
TL;DR: The relationship between Stimulation and Stimulus Information for visual perception is discussed in detail in this article, where the authors also present experimental evidence for direct perception of motion in the world and movement of the self.
Journal ArticleDOI
Separate visual pathways for perception and action.
TL;DR: It is proposed that the ventral stream of projections from the striate cortex to the inferotemporal cortex plays the major role in the perceptual identification of objects, while the dorsal stream projecting from the stripping to the posterior parietal region mediates the required sensorimotor transformations for visually guided actions directed at such objects.
Journal ArticleDOI
Two visual systems.
TL;DR: Visual systems of hamster brain, discussing relative visual localization and discrimination blindness produced by ablation of cortical or tectal areas is discussed.
Journal ArticleDOI
Value and need as organizing factors in perception
TL;DR: Throughout the history of modern psychology, perception has been treated as though the perceiver were a passive recording instrument of rather complex design, much as did the old nerve-muscle psychophysiology fall short of explaining behavior in everyday life.