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41.
Terrain slope can be used to encode the location of a goal. However, this directional information may be encoded using a conceptual north (i.e., invariantly with respect to the environment), or in an observer-relative fashion (i.e., varying depending on the direction one faces when learning the goal). This study examines which representation is used, whether the sensory modality in which slope is encoded (visual, kinaesthetic, or both) influences representations, and whether use of slope varies for men and women. In a square room, with a sloped floor explicitly pointed out as the only useful cue, participants encoded the corner in which a goal was hidden. Without direct sensory access to slope cues, participants used a dial to point to the goal. For each trial, the goal was hidden uphill or downhill, and the participants were informed whether they faced uphill or downhill when pointing. In support of observer-relative representations, participants pointed more accurately and quickly when facing concordantly with the hiding position. There was no effect of sensory modality, providing support for functional equivalence. Sex did not interact with the findings on modality or reference frame, but spatial measures correlated with success on the slope task differently for each sex.  相似文献   
42.
Bezhanishvili  Guram 《Studia Logica》2000,64(2):215-256
This paper is the concluding part of [1] and [2], and it investigates the inner structure of the lattice (MHA) of all varieties of monadic Heyting algebras. For every n , we introduce and investigate varieties of depth n and cluster n, and present two partitions of (MHA), into varieties of depth n, and into varieties of cluster n. We pay a special attention to the lower part of (MHA) and investigate finite and critical varieties of monadic Heyting algebras in detail. In particular, we prove that there exist exactly thirteen critical varieties in (MHA) and that it is decidable whether a given variety of monadic Heyting algebras is finite or not. The representation of (MHA) is also given. All these provide us with a satisfactory insight into (MHA). Since (MHA) is dual to the lattice NExtMIPC of all normal extensions of the intuitionistic modal logic MIPC, we also obtain a clearer picture of the lattice structure of intuitionistic modal logics over MIPC.  相似文献   
43.
James B. Miller 《Zygon》1998,33(1):147-153
James Gilbert has provided fascinating and valuable historical sketches of the interactions of science and religion in American culture in this century, especially those taking place between 1945 and 1962. Yet, taken together, it is unclear what conclusion is to be drawn from these interactions. Ambiguity about the variety of forms of the science-and-religion relationship and about the referent of the term religion make the task of apprehending a coherent pattern among these sketches very difficult.  相似文献   
44.
Modeling spatial knowledge   总被引:1,自引:0,他引:1  
A person's cognitive map, or knowledge of large-scale space, is built up from observations gathered as he travels through the environment. It acts as a problem solver to find routes and relative positions, as well as describing the current location. The TOUR model captures the multiple representations that make up the cognitive map, the problem-solving strategies it uses, and the mechanisms for assimilating new information. The representations have rich collections of states of partial knowledge, which support many of the performance characteristics of common-sense knowledge.  相似文献   
45.
Two groups of educable retarded children differing in functioning level served as subjects. One group, the High group, consisted of 31 children drawn from the upper two classes of a five-class stream. The Low group consisted of 39 children drawn from the lowest two classes. During pretesting, on each trial but the first of a multitrial free recall procedure, subjects were allowed to select half of the to-be-remembered items to see if they would strategically select missed items for extra study. Following pretesting, subjects were divided for training into three groups for which the experimenter selected items for study: in the Standard group, missed items; in the Creeping group, recalled items plus one missed item; and in the Random group, half missed and half recalled items. Children in the High group improved in the Standard condition, and those in the Low group benefited from Creeping training. There was no evidence of maintenance of training in the Low group, but children in the High group given training in the standard strategy selected missed items for recall on the posttests. The results are discussed in terms of the stability of trained strategies in retardates, and the question of what constitutes an optimal strategy is considered.  相似文献   
46.
In this study, we investigate how partisan motivations shape voters' reactions to a political scandal by drawing on a unique survey experiment fielded immediately after Justin Trudeau's brownface/blackface scandal broke during the 2019 Canadian election. We thus explore motivated reasoning in real time in a competitive and highly partisan election context. Are voters more willing to forgive politicians for past behavior when their own party leader's impropriety is cued? To what extent do personal interests, such as cross-pressures or electoral concerns, affect the motivation to forgive? Our findings show that partisan-motivated reasoning is overwhelmingly powerful, producing politically biased judgments of politicians implicated in scandals. Furthermore, voters' willingness to forgive scandals is also influenced by “strategic” considerations, in that preferences over which political party wins or loses in the election affect opinions about whether someone should be forgiven or whether the scandal is considered important at all. However, we find no evidence that personal involvement in the issue raised by the scandal conditions partisan motivations. We posit that the environment—in this case, a competitive election—is an important consideration for understanding the extent and limits of partisan-motivated reasoning.  相似文献   
47.
Caregivers use a range of verbal and nonverbal behaviours when responding to their infants. Previous studies have typically focused on the role of the caregiver in providing verbal responses, while communication is inherently multimodal (involving audio and visual information) and bidirectional (exchange of information between infant and caregiver). In this paper, we present a comprehensive study of caregivers’ verbal, nonverbal, and multimodal responses to 10-month-old infants’ vocalisations and gestures during free play. A new coding scheme was used to annotate 2036 infant vocalisations and gestures of which 87.1 % received a caregiver response. Most caregiver responses were verbal, but 39.7 % of all responses were multimodal. We also examined whether different infant behaviours elicited different responses from caregivers. Infant bimodal (i.e., vocal-gestural combination) behaviours elicited high rates of verbal responses and high rates of multimodal responses, while infant gestures elicited high rates of nonverbal responses. We also found that the types of verbal and nonverbal responses differed as a function of infant behaviour. The results indicate that infants influence the rates and types of responses they receive from caregivers. When examining caregiver-child interactions, analysing caregivers’ verbal responses alone undermines the multimodal richness and bidirectionality of early communication.  相似文献   
48.
北京地区中学生学习策略水平的调查研究   总被引:24,自引:1,他引:23  
本研究采用中学生学习策略量表测查了542名中学生的学习策略使用情况。结果表明:(1)中学生学习策略量表有着较高的信度和效度,分量表项目间有良好的一致性。(2)从初三到高三,学生的学习策略水平没有表现出随年级增长而提高的趋势,甚至在时问管理、焦虑、信息加工等分量表方面有下降的表现。(3)女生在态度,动机,学习辅助和自我测试分量表上的得分明显高于男生;男生在信息加工分量表上的得分明显高于女生。(4)优差生在学习辅助和自我测试两个分量表上的得分没有明显差异,在其余分量表上均有显著差异。  相似文献   
49.
The fourth wave of the National Congregations Study (NCS-IV) was conducted in 2018–2019 with a nationally representative sample of congregations from across the religious spectrum. The NCS-IV included a fresh cross-section of congregations generated in conjunction with the 2018 General Social Survey and a panel of congregations that participated in the third NCS wave. Data were collected via a 65-minute interview with one key informant from 1,262 congregations. The cooperation rate was 74 percent; the conservatively calculated response rate was 69 percent. Information was gathered about multiple aspects of congregations’ social composition, structure, activities, leadership, and programming. Approximately two-thirds of the NCS-IV questionnaire replicates items from previous NCS waves. This introduction to the NCS-IV symposium describes NCS-IV methodology and special features of the new data. The three symposium articles present NCS-IV results about congregations’ political activities, racial and ethnic composition, and worship practices.  相似文献   
50.
Racially diverse congregations have become an important part of the American religious landscape. We use data from the National Congregations Study (NCS), notably including data from the fourth wave, collected in 2018–2019, to examine 20 years of racial diversity in congregations. We find that racial diversity within congregations has increased substantially between 1998 and 2019. There are more congregations in which no one racial or ethnic group comprises more than 80 percent of the people, congregations’ average diversity level has increased, and the percentage of all-white congregations has declined. Nearly a quarter of evangelical churches now have no one ethnic group constituting more than 80 percent of the people, a rate comparable to what we observe among Catholic churches. Moreover, congregations that meet this 80-percent threshold are more likely to be led by black clergy in 2019 than they were in 1998. We end with a note of caution about concluding that diverse congregations necessarily promote racial justice.  相似文献   
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