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61.
J. Farley Norman Amanda M. Beers Jessica S. Holmin Andalexandria M. Boswell 《Attention, perception & psychophysics》2010,72(6):1569-1575
A single experiment evaluated observers’ ability to visually discriminate 3-D object shape, where the 3-D structure was defined by motion, texture, Lambertian shading, and occluding contours. The observers’ vision was degraded to varying degrees by blurring the experimental stimuli, using 2.0-, 2.5-, and 3.0-diopter convex lenses. The lenses reduced the observers’ acuity from ?0.091 LogMAR (in the no-blur conditions) to 0.924 LogMAR (in the conditions with the most blur; 3.0-diopter lenses). This visual degradation, although producing severe reductions in visual acuity, had only small (but significant) effects on the observers’ ability to discriminate 3-D shape. The observers’ shape discrimination performance was facilitated by the objects’ rotation in depth, regardless of the presence or absence of blur. Our results indicate that accurate global shape discrimination survives a considerable amount of retinal blur. 相似文献
62.
63.
Michael Johns Micaela H. Coady Christina A. Chan Shannon M. Farley Susan M. Kansagra 《American journal of community psychology》2013,51(1-2):254-263
This article describes the evaluation of the law banning smoking in New York City’s parks and beaches that went into effect in 2011. We discuss the practical and methodological challenges that emerged in evaluating this law, and describe how we applied the principles of critical multiplism to address these issues. The evaluation uses data from three complementary studies, each with a unique set of strengths and weaknesses that can provide converging evidence for the effectiveness of the law. Results from a litter audit and an observational study suggest the ban reduced smoking in parks and beaches. The purpose, methodology and baseline results from an ongoing survey that measures how frequently adults in NYC and across New York State notice people smoking in parks and on beaches are presented and discussed. Limitations are considered and suggestions are offered for future evaluations of similar policies. 相似文献
64.
Perception of three-dimensional shape from specular highlights, deformations of shading, and other types of visual information 总被引:1,自引:0,他引:1
There have been numerous computational models developed in an effort to explain how the human visual system analyzes three-dimensional (3D) surface shape from patterns of image shading, but they all share some important limitations. Models that are applicable to individual static images cannot correctly interpret regions that contain specular highlights, and those that are applicable to moving images have difficulties when a surface moves relative to its sources of illumination. Here we describe a psychophysical experiment that measured the sensitivity of human observers to small differences of 3D shape over a wide variety of conditions. The results provide clear evidence that the presence of specular highlights or the motions of a surface relative to its light source do not pose an impediment to perception, but rather, provide powerful sources of information for the perceptual analysis of 3D shape. 相似文献
65.
Many current models of memory are specified with enough detail to make predictions about patterns of errors in memory tasks. However, there are often not enough empirical data available to test these predictions. We report two experiments that examine the relative frequency of fill-in and infill errors. In immediate serial recall tasks, subjects sometimes incorrectly recall item N too soon, placing it in position N-1. The error of interest is which item is recalled after this initial mistake. A fill-in error is the tendency to recall item N-1 next, whereas an infill error is the tendency to recall item N+1 next. Both experiments reveal more fill-in than infill errors, not only overall but at each possible error location throughout the list. The overall ratio is approximately 2:1. We conclude that none of the currently existing models adequately accounts for fill-in and infill errors. 相似文献
66.
Two experiments investigated observers’ perceptions of 3-D structure when optical sources of information were contradictory. When motion and stereoscopic disparities specified different surfaces, the perceptual outcome depended strongly on the direction of curvature present within each modality. Previous research has shown that the perception of surface slant and curvature is anisotropic for both motion and stereo and that it depends on the direction in which it takes place. In the present experiments, the modality with the “effective” direction of curvature tended to dominate or suppress the perception of surfaces in the other modality with less effective curvatures. The results have implications for models which attempt to combine 3-D data from different optical sources. 相似文献
67.
The detectability of surface curvatures defined by optical motion was evaluated in three experiments. Observers accurately detected very small amounts of curvature in a direction perpendicular to the direction of rotation, but they were less sensitive to curvatures along the direction of rotation. Variations in either the number of points (between 91 and 9) or the number of views (from 15 to 2) had little or no effect on discrimination accuracy. The results of this study demonstrate impressive visual sensitivity to surface curvature. Several characteristics of this sensitivity to curvature are inconsistent with many computational models for deriving three-dimensional structure from motion. 相似文献
68.
F H Farley 《Journal of personality assessment》1975,39(2):151-153
Higher order personality dimensions of extraversion-introversion and neuroticism were studied as functions of birth order in two-sib families, using 141 female subjects, with control over sex of sibling and sib age separation. No significant personality dimension variance was attributable to birth order in females. The results were considered briefly in terms of the importance of birth order, heritability questions, and the possible contribution of birth order to lower order traits. 相似文献
69.
Jennie Farley 《Journal of Employment Counseling》1970,7(4):130-136
Analysis of 422 applications submitted to an employment agency by married women suggests that some professional women who seek to reenter the labor force lack confidence, skill in presenting their credentials, and enough self-assurance to present themselves in their own names. In this sample of women, the individual whose self-image as an independent professional allowed her to defy Emily Post was more likely to get a job than was the individual who used her husband's name. 相似文献
70.
Rape myths and prostitution myths are a component of culturally supported attitudes that normalize violence against women. Prostitution myths justify the existence of prostitution, promote misinformation about prostitution, and contribute to a social climate that exploits and harms not only prostituted women, but all women. This study investigated the relationship between prostitution myth acceptance and rape myth acceptance in a sample of university undergraduates. Rape myth acceptance was positively correlated with prostitution myth acceptance among 783 university undergraduates from California, Iowa, Oregon, and Texas. College men were significantly more accepting of prostitution myths than were college women. Results suggest that acceptance of prostitution myths are a component of attitudes that justify violence against women. 相似文献