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of 35
pro vyhledávání: '"Dennis M, Shaffer"'
Autor:
Dennis M. Shaffer, Kirsten M. Greer, Jackson T. Schaffer, Clayton C. Richardson, John Thrasher
Publikováno v:
Attention, Perception, & Psychophysics. 84:1699-1717
Publikováno v:
i-Perception, Vol 4 (2013)
There is a current debate concerning whether people's physiological or behavioral potential alters their perception of slanted surfaces. One way to directly test this is to physiologically change people's potential by lowering their blood sugar and c
Externí odkaz:
https://doaj.org/article/982841f9073c45beac62cba0c757b2cd
Autor:
Mara Hernandez, Echoe Smith, Dennis M. Shaffer, Brandon Short, Erica Bishop, Cage Cramer, Ky Mattingly, Kirsten M. Greer, Meghan Burkhardt, Jackson T. Schaffer
Publikováno v:
Attention, Perception, & Psychophysics. 81:476-488
Previous work has shown that people overestimate their own body tilt by a factor of about 1.5, the same factor by which people overestimate geographical and man-made slopes. In Experiment 1 we investigated whether people can accurately identify their
Publikováno v:
Consciousness and Cognition. 64:207-215
Conscious experience implies a reference-frame or vantage, which is often important in scientific models. Control models of ball-interception are used as an example. Models that use viewer-dependent egocentric reference-frames are contrasted with vie
Publikováno v:
Attention, Perception, & Psychophysics. 80:1988-1995
In the present work we investigated people's perceptions of orientation for surfaces that are conceived of as being sloped downward from vertical against a vertical reference frame. In the three conditions of Experiment 1, participants either (1) pla
Autor:
Dennis M. Shaffer, Ally Taylor
Publikováno v:
Attention, Perception, & Psychophysics. 79:691-697
We investigate the relationship between verbal and hand proprioception of slant. In Experiment 1 we demonstrate that verbally estimating free hand orientation produces overestimates by a factor of 1.67. These values are similar to those seen for verb
Publikováno v:
Journal of experimental psychology. Human perception and performance. 45(7)
It is well known that people overestimate the orientation of both geographical and man-made sloped surfaces by between 5°-20°. More recently, work has shown that when people are encumbered by wearing a heavy backpack they overestimate hills and dis
Autor:
Brandon Short, Jackson T. Schaffer, Kirsten M. Greer, Ky Mattingly, Meghan Burkhardt, Dennis M. Shaffer, Cage Cramer
Publikováno v:
Acta psychologica. 192
It is well known that people verbally exaggerate the slant of visually perceived geographical, virtual, and man-made hills. More recently it has been shown that haptic and verbal estimates of slant result in similar exaggerations, supporting the prop
Autor:
Richard S. Marken, Dennis M. Shaffer
Publikováno v:
Experimental brain research. 236(5)
Marken and Shaffer (Exp Brain Res 235:1835-1842, 2017) have argued that the power law of movement, which is generally thought to reflect the mechanisms that produce movement, is actually an example of what Powers (Psychol Rev 85:417-435, 1978) dubbed
Autor:
Dennis M. Shaffer, Eric McManama
Publikováno v:
Attention, Perception, & Psychophysics. 77:948-952
Previous work has shown that overestimates of geographic slant depend on the modality used (verbal or haptic). Recently, that line of reasoning has come into question for many reasons, not the least of which is that the typical method used for measur