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81.
The role that recent experience has in the processing of Korean Hanja characters was investigated in two masked priming experiments. Two groups of Korean native speakers that differed in their recent exposure to Hanja were asked to name single Hanja characters (targets) that were immediately preceded by masked presentations of the same characters (repetition priming), Hanja characters that were homophones of the target (homophone priming), or unrelated characters (baseline). The results showed that the group that had been less recently exposed made more errors and were slower than the group that had been the more recently exposed. Furthermore, there was no character homophone priming for the less recently exposed group, although they did show a robust repetition priming effect. On the other hand, the more recently exposed group showed both strong character repetition and homophone priming effects. We suggest that regular exposure to characters supports their rapid and automatic processing. It is argued that the different patterns of priming for the two groups were due to how rapidly the orthographic and phonological information of the prime could be resolved.  相似文献   
82.
Joohan Kim 《Human Studies》2001,24(1-2):87-111
This paper explores the ontology of digital information or the nature of digital-being. Even though a digital-being is not a physical thing, it has many essential features of physical things such as substantiality, extensions, and thing-totality (via Heidegger). Despite their lack of material bases, digital-beings can provide us with perceivedness or universal passive pregivenness (via Husserl). Still, a digital-being is not exactly a thing, because it does not belong to objective time and space. Due to its perfect duplicability, a digital being can exist at multiple locations simultaneously – that is, it defies normal spatiotemporal constraints. With digital beings on the Internet, we can establish intercorporeal relationships. The World Wide Web opens up new possibilities of Dasein's being-able-to-be-with-one-another and new modes of Being-with-others (Mitsein). The new modes of communication based on digital-beings compel us to re-read Heidegger's basic concepts such as Dasein as Being-in-the-world, since Dasein becomes the Digi-sein as Being-in-the-World-Wide-Web. By exploring the ontological characteristics of digital-being, this paper suggests that we conceive digital-beings as res digitalis – a third entity which is located somewhere between res cogitans and res extensa.  相似文献   
83.
Kim O  Kim K 《Adolescence》2001,36(142):315-322
The purpose of this study was to examine whether body mass index (BMI) and perception of a body weight problem predict level of self-esteem and depression in Korean female adolescents. The sample consisted of 303 females, ranging in age from 15 to 19 years, who were attending four high schools located in Seoul, Korea. BMI and desired BMI were calculated based on self-reported weight and height. Self-perception of having a weight problem was evaluated by one question: "Do you see yourself as having a weight problem?" Self-esteem was measured using the Rosenberg Self-Esteem Scale, and depression was measured using the Center for Epidemiologic Studies Depression Scale. Based on BMI, 18.2% of the females were underweight, 79.2% were of normal weight, and 2.6% were overweight. Based on desired BMI, 78.5% of the females desired to be underweight. Results showed that perception of a weight problem, but not BMI, contributed significantly to the prediction of level of self-esteem and depression. In addition, there was a significant positive correlation between BMI and perception of a weight problem.  相似文献   
84.
In two experiments using spatial probes, we measured the temporal and spatial interactions between top-down control of attention and bottom-up interference from a salient distractor in visual search. The subjects searched for a square among circles, ignoring color. Probe response times showed that a color singleton distractor could draw attention to its location in the early stage of visual processing (before a 100-msec stimulus onset asynchrony [SOA]), but only when the color singleton distractor was located far from the target. Apparently the bottom-up activation of the singleton distractor's location is affected early on by local interactions with nearby stimulus locations. Moreover, probe results showed that a singleton distractor did not receive attention after extended practice. These results suggest that top-down control of attention is possible at an early stage of visual processing. In the long-SOA condition (150-msec SOA), spatial attention selected the target location over distractor locations, and this tendency occurred with or without extended practice.  相似文献   
85.
Kim L. Beckmann 《Zygon》1999,34(3):537-541
This Christian sermon uses a DNA lab experience as a basis for theological reflection on ourselves and our offering. Who are we to God? What determines the self that we offer? Can the alphabet of DNA shed light for us on the Word of God in our lives? This first attempt to introduce the language and laboratory environment of genetic testing (represented by DNA fingerprinting) within a parish preaching context juxtaposes liturgical, scientific, and biblical language and settings for fresh insights.  相似文献   
86.
In 3 experiments, the authors examined movement space-time variability as a function of the force-time properties of the initial impulse in a movement timing task. In the range of motion and movement time task conditions, peak force, initial rate of force, and force duration were manipulated either independently or in combination across a range of parameter values. The findings showed that (a) impulse variability is predicted well by the elaboration of the isometric force variability scaling functions of L. G. Carlton, K. H. Kim, Y. T. Liu, and K. M. Newell (1993) to movement, and (b) the movement spatial and temporal outcome variability are complementary and well predicted by an equation treating the variance of force and time in Newton's 2nd law as independent random variables. Collectively, the findings suggest that movement outcome variability is the product of a coherent space-time function that is driven by the nonlinear scaling of the force-time properties of the initial impulse.  相似文献   
87.
Seventeen-month-old infants were presented with pairs of images, in silence or with the non-directive auditory stimulus ‘look!’. The images had been chosen so that one image depicted an item whose name was known to the infant, and the other image depicted an image whose name was not known to the infant. Infants looked longer at images for which they had names than at images for which they did not have names, despite the absence of any referential input. The experiment controlled for the familiarity of the objects depicted: in each trial, image pairs presented to infants had previously been judged by caregivers to be of roughly equal familiarity. From a theoretical perspective, the results indicate that objects with names are of intrinsic interest to the infant. The possible causal direction for this linkage is discussed and it is concluded that the results are consistent with Whorfian linguistic determinism, although other construals are possible. From a methodological perspective, the results have implications for the use of preferential looking as an index of early word comprehension.  相似文献   
88.
Infants under 7 months of age fail to reach behind an occluding screen to retrieve a desired toy even though they possess sufficient motor skills to do so. However, even by 3.5 months of age they show surprise if the solidity of the hidden toy is violated, suggesting that they know that the hidden toy still exists. We describe a connectionist model that learns to predict the position of objects and to initiate a response towards these objects. The model embodies the dual-route principle of object information processing characteristic of the cortex. One route develops a spatially invariant surface feature representation of the object whereas the other route develops a feature blind spatial–temporal representation of the object. The model provides an account of the developmental lag between infants’ knowledge of hidden objects and their ability to demonstrate that knowledge in an active retrieval task, in terms of the need to integrate information across multiple object representations using (associative) connectionist learning algorithms. Finally, the model predicts the presence of an early dissociation between infants’ ability to use surface features (e.g. colour) and spatial–temporal features (e.g. position) when reasoning about hidden objects. Evidence supporting this prediction has now been reported.  相似文献   
89.
In two experiments using spatial probes, we measured the temporal and spatial interactions between top-down control of attention and bottom-up interference from a salient distractor in visual search. The subjects searched for a square among circles, ignoring color. Probe response times showed that a color singleton distractor could draw attention to its location in the early stage of visual processing (before a 100-msec stimulus onset asynchrony [SOA]), but only when the color singleton distractor was located far from the target. Apparently the bottom-up activation of the singleton distractor’s location is affected early on by local interactions with nearby stimulus locations. Moreover, probe results showed that a singleton distractor did not receive attention after extended practice. These results suggest that top-down control of attention is possible at an early stage of visual processing. In the long-SOA condition (150-msec SOA), spatial attention selected the target location over distractor locations, and this tendency occurred with or without extended practice.  相似文献   
90.
The bilingual advantage hypothesis contends that the management of two languages in the brain is carried out through domain‐general mechanisms, and that bilinguals possess a performance advantage over monolinguals on (nonlinguistic) tasks that tap these processes. Presently, there is evidence both for and against such an advantage. Interestingly, the evidence in favor has been thought strongest in children and older adults, leading some researchers to argue that young adults might be at peak performance levels, and therefore bilingualism is unable to confer an improvement. We conducted a large‐scale review of the extant literature and found that the weight of research pointed to an absence of positive evidence for a bilingual advantage at any age. We next gave a large number of young adult participants a task designed to test the bilingual advantage hypothesis. Reasoning from the literature that young adults from an East Asian (Korean) culture would likely outperform those from a Western (British) culture, we also compared participants on this factor. We found no evidence for a bilingual advantage but did find evidence for enhanced performance in the Korean group. We interpret these results as further evidence against the bilingual advantage hypotheses.  相似文献   
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