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111.
APPARENT MOTION OF THE HUMAN BODY 总被引:1,自引:0,他引:1
112.
Maggie Shiffrar Laura Lichtey Sheba Heptulla Chatterjee 《Attention, perception & psychophysics》1997,59(1):51-59
To understand the visual analysis of biological motion, subjects viewed dynamic, stick figure renditions of a walker, car, or scissors through apertures. As a result of the aperture problem, the motion of each visible edge was ambiguous. Subjects readily identified the human figure but were unable to identify the car or scissors through invisible apertures. Recognition was orientation specific and robust across a range of stimulus durations, and it benefited from limb orientation cues. The results support the theory that the visual system performs spatially global analyses to interpret biological motion displays. 相似文献
113.
M Shiffrar M Pavel 《Journal of experimental psychology. Human perception and performance》1991,17(3):749-761
Humans consistently err in their percepts of rotational motion viewed through an aperture. Such errors provide insight into the constraints observers use to interpret retinal images. In the 1st of 2 experiments, Ss consistently perceived the fixed center of rotation for an unmarked line viewed through an aperture as located on the line, regardless of its actual location. Accuracy greatly improved with visible line endings. This finding was extended to explain why a square appears nonrigid when it rotates behind a partial occluder. This illusion may result from observers misperceiving the center of rotation of the unmarked square sides. In this situation, Ss seemed unable to apply an object rigidity constraint across apertures. These findings support a conceptualization of the visual system in which consistent local information must be clearly present before prior knowledge can be used to interpret retinal stimulation. 相似文献
114.
Maggie Ponder Frances Murton Nina Hallowell Helen Statham Josephine Green Martin Richards 《Journal of genetic counseling》1998,7(4):331-344
Neurofibromatosis type 1(NF1) is a complex and variable inherited disorder. The complexity and variability present particular difficulty for genetic counseling. Thirty-three people with NF1 of reproductive age were interviewed about their experience of genetic counseling, their past reproductive behavior and future intentions. One third reported having had no genetic counseling or not having it until after their first child. In part, this may be due to delay in diagnosis but also indicates poor access to genetic services. Only three people had ever been offered prenatal genetic testing and only one had accepted. Although testing is still technically difficult, the greatest deterrent to uptake of prenatal testing for NF1 is the variability of the disorder. However, six of the 17 people planning future pregnancies would want a test with a view to termination if necessary. Others would welcome testing in order to be prepared but not to terminate. We discuss some of the factors which influence reproductive decision making for people with NF1 and some of the difficulties in genetic counseling in such a variable and complex disorder. 相似文献
115.
The UK government announced the establishment of an NHS National Genetics Education and Development Centre in its Genetics
White Paper. The Centre aims to lead and coordinate developments to enhance genetics literacy of health professionals. The
nursing program takes a strategic approach based on Ajzen’s Theory of Planned Behavior, using the UK nursing genetics competences
as the platform for development. The program team uses innovative approaches to raise awareness of the relevance of genetics,
working collaboratively with policy stakeholders, as key agents of change in promoting competence. Providing practical help
in preparing learning and teaching resources lends further encouragement. Evaluation of the program is dependent on gathering
baseline data, and the program has been informed by an education needs analysis. The challenges faced are substantial and
necessitate international collaboration where expertise and resources can be shared to produce a global system of influence
to facilitate the engagement of non-genetic nurses. 相似文献
116.
117.
In the present article, we propose a three-stage memory marker model of memory for experience. The human mind generates and encodes “memory markers” of specific episodes, stores them in memory, and after a temporal delay retrieves these markers to reconstruct the experience and make relevant judgments. Rich experiences characterized by vivid stimuli seem to pass by quickly, yet feel longer when recalled after a period of time because the number of retrieved memory markers is large. We also examine situations in which key predictions of the memory marker model can be moderated. A field study and five laboratory experiments were conducted to test various aspects of the memory marker model and provide process support. 相似文献
118.
In the current study, we sought to examine whether performance on several heuristics and biases tasks and thinking dispositions was associated with real‐life correlates in a community sample of adults. We examined performance on five heuristics and biases tasks (ratio bias, belief bias in syllogistic reasoning, cognitive reflection, probabilistic and statistical reasoning, and rational temporal discounting), three thinking dispositions (actively open‐minded thinking, future orientation, and avoidance of superstitious thinking), and a questionnaire assessing real‐world correlates in several domains (substance use, driving behavior, financial behavior, gambling behavior, electronic media use, and secure computing). Our heuristics and biases tasks and thinking disposition measures were modestly associated with several real‐world outcomes, including the domains of secure computing, financial behaviors, and the total scores. That is, better performance on the heuristics and biases measures was associated with fewer negative outcomes. We found that the associations were generally higher in males than in females. Heuristics and biases performance and thinking dispositions were unique predictors of real‐world outcomes after statistically controlling for educational attainment and sex differences. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
119.
Maggie E. Toplak Eleanor Liu Robyn Macpherson Tony Toneatto Keith E. Stanovich 《决策行为杂志》2007,20(2):103-124
We present a taxonomy that categorizes the types of cognitive failure that might result in persistent gambling. The taxonomy subsumes most previous theories of gambling behavior, and it defines three categories of cognitive difficulties that might lead to gambling problems: The autonomous set of systems (TASS) override failure, missing TASS output, and mindware problems. TASS refers to the autonomous set of systems in the brain (which are executed rapidly and without volition, are not under conscious control, and are not dependent on analytic system output). Mindware consists of rules, procedures, and strategies available for explicit retrieval. Seven of the eight tasks administered to pathological gamblers, gamblers with subclinical symptoms, and control participants were associated with problem gambling, and five of the eight were significant predictors in analyses that statistically controlled for age and cognitive competence. In a commonality analysis, an indicator from each of the three categories of cognitive difficulties explained significant unique variance in problem gambling, indicating that each of the categories had some degree of predictive specificity. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
120.
Linda Pring Maggie Snowling 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1986,38(3):395-418
Two experiments examining developmental changes in the use of context in single word reading are reported. The first experiment investigated how effectively children can access conceptual knowledge and use this to help their word recognition. The results indicated that young readers can on demand direct their attention to semantic information, and this allows them to reap a relatively greater benefit from context than older more skilful readers. The second experiment attempted to clarify the way such use of contextual information might help in the specific case when a child attempts to decode a new word for the first time. Skilled and unskilled readers pronounced pseudohomophonic nonwords faster when they were primed by a semantic context, and the context effect was greater for unskilled readers. The nonword's graphemic similarity to a lexical item was also important.
In general, the results were consistent with Stanovich's (1980) interactive-compensatory model of reading, and they suggest that in learning to read, several already existing stores of information (e.g. auditory, visual and conceptual) are integrated in order to achieve a solution to the word recognition problem. 相似文献
In general, the results were consistent with Stanovich's (1980) interactive-compensatory model of reading, and they suggest that in learning to read, several already existing stores of information (e.g. auditory, visual and conceptual) are integrated in order to achieve a solution to the word recognition problem. 相似文献