In 4 experiments, the authors varied the extent and nature of participant movement in a virtual environment to examine the influence of action on estimates of geographical slant …
Perceived slant is grossly overestimated, such that 5° hills look to be about 20°. However, overestimation is found only in visual and verbal measures of apparent slant; action …
SO Daum, H Hecht - Consciousness and Cognition, 2018 - Elsevier
Hills often appear to be steeper than they are. The unusual magnitude of this error has prompted extensive experimentation. The judgment mode, such as verbal vs. action-based …
In two recent issues of Acta, the widely accepted view of Proffitt (2006), that 'haptic'measures of perceived geographical slant are generally accurate, and dissociated from explicit …
FH Durgin, Z Li, A Hajnal - Attention, Perception, & Psychophysics, 2010 - Springer
The geographical slants of hills are known to appear quite exaggerated. Here, we examine the visual and haptic perception of the geographical slant of surfaces within reach under full …
The overestimation of geographical slant is one of the most sizable visual illusions. However, in some cases estimates of close-by slopes within the range of the observer's …
DR Proffitt - Psychonomic Bulletin & Review, 2009 - Springer
We argue that the experimental conditions in the Durgin et al.(2009) study were so different from those in Bhalla and Proffitt (1999) that the results of the former study cannot be …
S Louw, JBJ Smeets, E Brenner - Experimental Brain Research, 2007 - Springer
People have a variety of sources of information (cues) about surface slant at their disposal. We used a simple placing task to evaluate the relative importance of three such cues …
DR Proffitt, SH Creem, WD Zosh - Psychological Science, 2001 - journals.sagepub.com
When observers face directly toward the incline of a hill, their awareness of the slant of the hill is greatly overestimated, but motoric estimates are much more accurate. The present …