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211.
The mechanisms that support infant action processing are thought to be involved in the development of later social cognition. While a growing body of research demonstrates longitudinal links between action processing and explicit theory of mind (TOM), it remains unclear why this link emerges in some measures of action encoding and not others. In this paper, we recruit neural measures as a unique lens into which aspects of human infant action processing (i.e., action encoding and action execution; age 7 months) are related to preschool TOM (age 3 years; n = 31). We test whether individual differences in recruiting the sensorimotor system or attention processes during action encoding predict individual differences in TOM. Results indicate that reduced occipital alpha during action encoding predicts TOM at age 3. This finding converges with behavioral work and suggests that attentional processes involved in action encoding may support TOM. We also test whether neural processing during action execution draws on the proto‐substrates of effortful control (EC). Results indicate that frontal alpha oscillatory activity during action execution predicted EC at age 3—providing strong novel evidence that infant brain activity is longitudinally linked to EC. Further, we demonstrate that EC mediates the link between the frontal alpha response and TOM. This indirect effect is specific in terms of direction, neural response, and behavior. Together, these findings converge with behavioral research and demonstrate that domain general processes show strong links to early infant action processing and TOM. 相似文献
212.
This research examines the relationship of social capital with the acculturation attitudes and sociocultural adaptation of 122 migrants from Central Asian republics of the former Union of Soviet Socialist Republics (Uzbekistan, Tajikistan, Turkmenistan, Kyrgyzstan, and Kazakhstan) and 136 migrants from South Korea. The questionnaire included scales for assessing acculturation attitudes (integration, assimilation, and separation), individual social capital (bridging and bonding), and sociocultural adaptation. Using parallel mediation analysis, we found that acculturation attitudes for migrants from Central Asia are secondary to their social capital in relation to sociocultural adaptation. However, among migrants from South Korea, social capital is not linked to their acculturation attitudes, and in general, its role in sociocultural adaptation is lower as compared to the role of acculturation attitudes. As a whole, our research shows that although sociocultural adaptation for all ethnic groups is linked to acculturation attitudes and social capital, acculturation attitudes for certain ethnic groups can be dependent on social capital. 相似文献
213.
AbstractThe objective of this study was to examine the effects of muscle strength training on knee kinematics/kinetics and muscle activation patterns during anticipated side-step cutting. Three-dimensional knee kinematics/kinetics data and muscle activation of selected lower extremity muscles were measured while performing cutting before and after completing 10-week circuit strength training mixed typical resistance training and power training (intervention) or no training (control) from 25 female subjects. The muscle strength of quadriceps and hamstrings were measured before and after training using isokinetic dynamometer. No statistically significant differences were observed in quadriceps and hamstrings muscle strength, all kinematic/kinetic variables, and muscle activation for the control group. Both quadriceps (p?=?0.005) and hamstrings (p?=?0.030) muscle strength were increased after training. An increased biceps femoris (p?=?0.003) and H:Q ratio of activation (p?=?0.016), as well as decreased gastrocnemius muscle activation (p?=?0.012) during pre-activation phase in intervention group were found. No significant differences were found in knee kinematics and kinetics both at the time frame of the initial contact and the peak tibial anterior shear force after training. In conclusion, muscle strength training altered some muscle activations of lower extremity muscles, which might affect the risk of ACL injury, but it did not change the kinematic/kinetic parameters. 相似文献
214.
Ji Yeh Choi Heungsun Hwang 《The British journal of mathematical and statistical psychology》2020,73(2):347-373
Generalized structured component analysis (GSCA) is a component-based approach to structural equation modelling, which adopts components of observed variables as proxies for latent variables and examines directional relationships among latent and observed variables. GSCA has been extended to deal with a wider range of data types, including discrete, multilevel or intensive longitudinal data, as well as to accommodate a greater variety of complex analyses such as latent moderation analysis, the capturing of cluster-level heterogeneity, and regularized analysis. To date, however, there has been no attempt to generalize the scope of GSCA into the Bayesian framework. In this paper, a novel extension of GSCA, called BGSCA, is proposed that estimates parameters within the Bayesian framework. BGSCA can be more attractive than the original GSCA for various reasons. For example, it can infer the probability distributions of random parameters, account for error variances in the measurement model, provide additional fit measures for model assessment and comparison from the Bayesian perspectives, and incorporate external information on parameters, which may be obtainable from past research, expert opinions, subjective beliefs or knowledge on the parameters. We utilize a Markov chain Monte Carlo method, the Gibbs sampler, to update the posterior distributions for the parameters of BGSCA. We conduct a simulation study to evaluate the performance of BGSCA. We also apply BGSCA to real data to demonstrate its empirical usefulness. 相似文献
215.
Jae Yoon Chang Jin Nam Choi Myung Un Kim 《Journal of Occupational & Organizational Psychology》2008,81(2):299-317
Retention of key R&D experts has been recognized as a critical managerial challenge for many technology‐based companies. In this study, we propose that turnover of highly educated professional workers is meaningfully related to individual characteristics such as cognitive style, work values and career orientation. We tested the hypotheses using data collected from a sample of 132 R&D professionals with PhD degrees in engineering or natural science in a Korean electronics firm. The time‐dependent risk of turnover was estimated by survival analysis using a proportional hazards regression model. The results showed that over the 7‐year period after their organizational entry, R&D professionals with high levels of intrinsic values and cosmopolitan orientation were more likely to leave the organization than were their counterparts with low levels of intrinsic values and cosmopolitan orientation. The hazard function showed that the positive effect of intrinsic work values on turnover was particularly salient in the third and fourth year of R&D professionals' organizational tenure. We found that the positive effect of cosmopolitan orientation on turnover increased over time, introducing a greater risk of turnover with increasing tenure. The present findings have practical implications for the retention of highly educated R&D professionals in a corporate setting. 相似文献
216.
Dong‐In Kim Seung W. Choi Guemin Lee Kooghyang R. Um 《International Journal of Selection & Assessment》2008,16(2):83-92
We designed this study to evaluate several data collection and equating designs in the context of item response theory (IRT) equating. The random‐groups design and the common‐item design have been widely used for collecting data for IRT equating. In this study, we investigated four equating methods based upon these two data collection designs, using empirical data from a number of different testing programs. When the randomly equivalent group assumption was reasonably met, the four equating methods tended to produce highly comparable results. On the other hand, equating methods based upon either of the equating designs produced dissimilar results. Sample size can have differential effects on the equating results produced by the different equating methods. In practice, a common‐item equivalent‐groups design often produces unacceptably large differences in the group mean due to various anomalies such as context effects, poor quality of common items, or a very small number of common items. In such cases, a random‐groups design would produce more stable equating results. 相似文献
217.
What is the relation between language and thought? Specifically, how do linguistic and conceptual representations make contact during language learning? This paper addresses these questions by investigating the acquisition of evidentiality (the linguistic encoding of information source) and its relation to children's evidential reasoning. Previous studies have hypothesized that the acquisition of evidentiality is complicated by the subtleness and abstractness of the underlying concepts; other studies have suggested that learning a language which systematically (e.g. grammatically) marks evidential categories might serve as a pacesetter for early reasoning about sources of information. We conducted experimental studies with children learning Korean (a language with evidential morphology) and English (a language without grammaticalized evidentiality) in order to test these hypotheses. Our experiments compared 3- and 4-year-old Korean children's knowledge of the semantics and discourse functions of evidential morphemes to their (non-linguistic) ability to recognize and report different types of evidential sources. They also compared Korean children's source monitoring abilities to the source monitoring abilities of English-speaking children of the same age. We found that Korean-speaking children have considerable success in producing evidential morphology but their comprehension of such morphology is very fragile. Nevertheless, young Korean speakers are able to reason successfully about sources of information in non-linguistic tasks; furthermore, their performance in these tasks is similar to that of English-speaking peers. These results support the conclusion that the acquisition of evidential expressions poses considerable problems for learners; however, these problems are not (necessarily) conceptual in nature. Our data also suggest that, contrary to relativistic expectations, children's ability to reason about sources of information proceeds along similar lines in diverse language-learning populations and is not tied to the acquisition of the linguistic markers of evidentiality in the exposure language. We discuss implications of our findings for the relationship between linguistic and conceptual representations during development. 相似文献
218.
219.
Sungho Choi 《Synthese》2006,148(2):369-379
Lewis claims that Martin’s cases indeed refute the simple conditional analysis of dispositions and proposes the reformed conditional
analysis that is purported to overcome them. In this paper I will first argue that Lewis’s defense of the reformed analysis
can be understood to invoke the concepts of disposition-specific stimulus and manifestation. I will go on to argue that advocates
of the simple analysis, just like Lewis, can also defend their analysis from alleged counterexamples including Martin’s cases
by invoking the concepts of disposition-specific stimulus and manifestation. This means that Lewis’s own necessary defense
of the reformed analysis invalidates his motivation of it. Finally, I will argue that we have a good reason to favor the simple
analysis over Lewis’s analysis. 相似文献
220.
Misconceptions about psychiatric wards frequently cause newly admitted mental patients to stay away from these wards despite their need for treatment. Although ward orientation is typically conducted by nurses in an attempt to help patients to adapt to the new environment, it is considered time-consuming, and the method of orientation and the explanations given may vary among different nurses. This situation calls for a more effective and standardized approach to orientating mental patients on their first admission. To this end, a computer-based interactive virtual environment was developed based on a real psychiatric ward by using virtual reality (VR) technologies. It enables the patient to navigate around to gain understanding about the ward through a virtual guided tour. The effectiveness of this VR orientation approach was investigated by a randomized controlled trial with consecutive sampling. Fifty-four Chinese participants were randomly assigned to undergo ward orientation by either using the VR-based approach or reading text-based electronic information sheets about the ward with a computer. Subjective and objective measures were obtained respectively using the Chinese version of the State-Trait Anxiety Inventory questionnaire and the heart-rate variability measurement before and after the intervention. In addition, a test on the level of understanding about the ward was administered at the end of the session. The results showed that the VR orientation approach is helpful in reducing patients' anxiety while also improving their level of understanding about the ward. 相似文献