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81.
An experiment was run to complete our understanding of the involvement of working memory (WM) components in the construction of a spatial model from visual input, considering some of the visuospatial abilities known to modulate performance. In addition, to allow for consideration of the flexibility of the spatial representation, routes in a virtual environment were presented with a route perspective, and tests were presented with route and survey perspectives. The results indicate that the verbal and spatial WM are only involved in the memorisation of certain types of information, and that their involvement depends on the change of perspective necessitated by the task. Thus, even when the learning material and the tests used to assess performance are only visual, a verbal recoding of some information is necessary. Moreover, individual differences modulate the involvement of WM; an individual with higher visuospatial capacities uses more spatial WM than an individual with lower spatial capacities.  相似文献   
82.
    
Using an empirical data set, we investigated variation in factor model parameters across a continuous moderator variable and demonstrated three modeling approaches: multiple-group mean and covariance structure (MGMCS) analyses, local structural equation modeling (LSEM), and moderated factor analysis (MFA). We focused on how to study variation in factor model parameters as a function of continuous variables such as age, socioeconomic status, ability levels, acculturation, and so forth. Specifically, we formalized the LSEM approach in detail as compared with previous work and investigated its statistical properties with an analytical derivation and a simulation study. We also provide code for the easy implementation of LSEM. The illustration of methods was based on cross-sectional cognitive ability data from individuals ranging in age from 4 to 23 years. Variations in factor loadings across age were examined with regard to the age differentiation hypothesis. LSEM and MFA converged with respect to the conclusions. When there was a broad age range within groups and varying relations between the indicator variables and the common factor across age, MGMCS produced distorted parameter estimates. We discuss the pros of LSEM compared with MFA and recommend using the two tools as complementary approaches for investigating moderation in factor model parameters.  相似文献   
83.
    
I argue that the concept of direction of fit (DOF) is best seen as picking out a certain inferential property of a psychological attitude. The property in question is one that believing shares with assuming and fantasizing and fails to share with desire. Unfortunately, the standard analysis of DOF obscures this fact because it conflates two very different properties of an attitude: that in virtue of which it displays a certain DOF, and that in virtue of which it displays certain revision conditions. I claim that the latter corresponds with the aim of an attitude, not its DOF. In order to remedy this failure of the standard analysis, I offer an alternative account of DOF, which I refer to as the two‐content analysis.  相似文献   
84.
    
Single scores from limited and unbalanced test batteries of cognitive ability can be ambiguous to interpret theoretically. In this study, a limited verbally and knowledge‐loaded cognitive test battery, from applicants to the Swedish police academies (N = 1,344), was examined to provide foundations for the use and interpretation of test scores. Three measurement models were compared: one single factor model and two bifactor models, which decomposed the variance of the battery into orthogonal components. The models were evaluated by fit indices and omega coefficients, and then applied to the prediction of academic performance. The overall prediction of all models was similar, although specific abilities also were found to provide substantial predictive validity over and above general intelligence (g). The findings provide support for the use of single scores in applied settings (selection), but suggest that it may be more appropriate to interpret such scores as composites of substantive components, and not just as measures of g.  相似文献   
85.
    
Studies of gender differences using primarily young individuals show that males, on average, perform better than females in physical activities but worse than females on tests of verbal abilities. There is however a controversy about the existence of these sex differences in adulthood. Our study used 1271 participants from four cultural backgrounds (Chinese, multi‐generation Canadians, Indu‐Canadians, and European‐Canadians) divided in five age groups. We measured sex differences in the time required for participants to complete a lexical task experiment, and also assessed their verbal tempo and physical endurance using a validated temperament test (Structure of Temperament Questionnaire). We found a significant female advantage in time on the lexical task and on the temperament scale of social–verbal tempo, and a male advantage on the temperament scale of physical endurance. These sex differences, however, were more pronounced in young age groups (17–24), fading in older groups. This “middle age–middle sex” phenomenon suggests that sex differences in these two types of abilities observed in younger groups might be “a matter of age,” and should not be attributed to gender in general. A one‐dimensional approach to sex differences (common in meta‐analytic studies) therefore overlooks a possible interaction of sex differences with age.  相似文献   
86.
Studies of face recognition and discrimination provide a rich source of data and debate on the nature of their processing, in particular through using inverted faces. This study draws parallels between the features of typefaces and faces, as letters share a basic configuration, regardless of typeface, that could be seen as similar to faces. Typeface discrimination is compared using paragraphs of upright letters and inverted letters at three viewing durations. Based on previously reported effects of expertise, the prediction that designers would be less accurate when letters are inverted, whereas nondesigners would have similar performance in both orientations, was confirmed. A proposal is made as to which spatial relations between typeface components constitute holistic and configural processing, posited as the basis for better discrimination of the typefaces of upright letters. Such processing may characterize designers' perceptual abilities, acquired through training.  相似文献   
87.
    
A conversation is made up of visual and auditory signals in a complex flow of events. What is the relative importance of these components for young children's ability to maintain attention on a conversation? In the present set of experiments the visual and auditory signals were disentangled in four filmed events. The visual events were either accompanied by the speech sounds of the conversation or by matched motor sounds and the auditory events by either the natural visual turn taking of the conversation or a matched turn taking of toy trucks. A cornea-reflection technique was used to record the gaze-pattern of subjects while they were looking at the films. Three age groups of typically developing children were studied; 6-month-olds, 1-year-olds and 3-year-olds. The results show that the children are more attracted by the social component of the conversation independent of the kind of sound used. Older children find spoken language more interesting than motor sound. Children look longer at the speaking agent when humans maintain the conversation. The study revealed that children are more attracted to the mouth than to the eyes area. The ability to make more predictive gaze shifts develops gradually over age.  相似文献   
88.
    
The dynamics of ‘surrender’ is here put in dialectic with the dynamics of ‘power’ observed in situation involving children and their caregivers in a paediatric hospital setting. Following a qualitative research method used in practical theology, three case studies are presented and then interpreted in the light of both social sciences and Christian theology/spirituality. In the power/surrender paradox, there will always be a need for discernment for each situation and each encounter if the caregiver wants to better care for the children and continue to acknowledge their contribution to the life experience and wisdom of adults. Power and surrender both need to be embraced in order to grow in a fruitful spiritual life.  相似文献   
89.
    
The increasing presence of images in medicine is mostly understood as a visualization of medicine. In this view, physicians and researchers are strongly guided by the visual power of images. Ethnographic fieldwork and interviews with physicians and scientists working in radiology departments and magnetic resonance imaging units however, show that visual power is not always effective. Depending on a situation, physicians and scientists are guided more strongly either by the persuasiveness of an image's visual qualities or its scientific and sociomaterial qualities. Actors trust in images and perceive them as attractive and objective in certain situations, whereas in others they classify images as manipulated representations that are untrustworthy. It is either the visual power or the status of images as scientific and sociomaterial facts that shapes physicians' and researchers' actions. Depending on whether an image is used, for example, to make a diagnosis, to validate a research finding, to communicate with a patient, to prevent litigation, or to improve one's position in the professional field, it is either the visual power or the scientific and sociomaterial characteristics of an image that are more effective in shaping medical practices. Fieldwork and interviews with physicians and scientists show in which situations visual power is relevant (or not) for medical practices.  相似文献   
90.
John Lemos 《Philosophia》2006,34(1):85-93
In this article it is assumed that human goodness is to be judged with respect to how well one does at practical reasoning. It is acknowledged that (1) there is a difference between moral practical reasoning (MPR) and prudential practical reasoning (PPR) and (2) what these would recommend sometimes conflict. A distinction is then made between absolute PPR and relative PPR and it is argued that doing well at absolute PPR is always consistent with MPR. It is also argued that since it is more reasonable to assess prudential practical rationality in terms of the absolute standard than the relative standard, there is no conflict between the demands of MPR (morality) and PPR (self-interest).
John LemosEmail:
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