Journal of Motor Learning and Development最新文献

Virtual Motivation: The Psychological and Transfer of Learning Effects of Immersive Virtual Reality Practice 虚拟动机:沉浸式虚拟现实实践学习效果的心理与迁移

Journal of Motor Learning and Development Pub Date : 2023-08-01 DOI: 10.1123/jmld.2022-0084

Logan T. Markwell, Joei R. Velten, Julie A. Partridge, Jared M. Porter

{"title":"Virtual Motivation: The Psychological and Transfer of Learning Effects of Immersive Virtual Reality Practice","authors":"Logan T. Markwell, Joei R. Velten, Julie A. Partridge, Jared M. Porter","doi":"10.1123/jmld.2022-0084","DOIUrl":"https://doi.org/10.1123/jmld.2022-0084","url":null,"abstract":"Previous research has shown practice within an immersive virtual reality (VR) environment improves performance in a physical environment. Increased user motivation is one possible advantage of practicing in VR. One recent study showed that an enriched gaming environment led to higher levels of engagement, resulting in a direct learning benefit. The purpose of this study was to compare the intrinsic motivation, engagement, and transfer of learning between VR practice and physical practice of the same motor skill. Participants ( n = 61) were randomly assigned to a physical ( n = 30) or a VR practice group ( n = 31) in which they performed a golf putting task. Analyses showed VR practice led to a significantly greater increase in average intrinsic motivation inventory score than physical practice. Analyses for performance showed there was a significant ( p < .001) improvement in accuracy (i.e., radial error) from pre- to posttest, but the two groups did not differ. Overall, these results partially support our hypotheses suggesting that VR practice led to a greater increase in motivation compared with physical practice. Additionally, these results suggest that VR practice was similarly effective at improving accuracy compared with physical practice. Future research directions are discussed.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135817969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Single Session of Mindfulness Meditation Expedites Immediate Motor Memory Consolidation to Improve Wakeful Offline Learning 单次正念冥想加速即时运动记忆巩固，以改善清醒时的离线学习

Journal of Motor Learning and Development Pub Date : 2023-04-01 DOI: 10.1123/jmld.2022-0016

James O. Brown, Alex Chatburn, David L. Wright, Maarten A. Immink

{"title":"A Single Session of Mindfulness Meditation Expedites Immediate Motor Memory Consolidation to Improve Wakeful Offline Learning","authors":"James O. Brown, Alex Chatburn, David L. Wright, Maarten A. Immink","doi":"10.1123/jmld.2022-0016","DOIUrl":"https://doi.org/10.1123/jmld.2022-0016","url":null,"abstract":"Posttraining meditation has been shown to promote wakeful memory stabilization of explicit motor sequence information in learners who are experienced meditators. We investigated the effect of single-session mindfulness meditation on wakeful and sleep-dependent forms of implicit motor memory consolidation in meditation naïve adults. Immediately after training with a target implicit motor sequence, participants ( N = 20, eight females, 23.9 ± 3.3 years) completed either a 10-min mindfulness meditation ( N = 10) or a control listening task before exposure to task interference induced by training with a novel implicit sequence. Target sequence performance was tested following 5-hr wakeful and 15-hr postsleep periods. Bayesian inference was applied to group comparisons of mean reaction time (RT) changes across training, interference, wakeful, and postsleep timepoints. Relative to control conditions, posttraining meditation reduced RT slowing between target sequence training and interference sequence introduction (BF 10 [Bayes factors] = 6.61) and supported RT performance gains over the wakeful period (BF 10 = 8.34). No group differences in postsleep RT performance were evident (BF 10 = 0.38). These findings illustrate that posttraining mindfulness meditation expedites wakeful, but not sleep-dependent, offline learning with implicit motor sequences. Previous meditation experience is not required to obtain wakeful consolidation gains from posttraining mindfulness meditation.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136261409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Age Differences in a Combined Walking and Grasping Task 行走和抓握联合任务的年龄差异

Journal of Motor Learning and Development Pub Date : 2023-01-01 DOI: 10.1123/jmld.2023-0032

Andrea H. Mason, Alejandra S. Padilla, Kristen A. Pickett

{"title":"Age Differences in a Combined Walking and Grasping Task","authors":"Andrea H. Mason, Alejandra S. Padilla, Kristen A. Pickett","doi":"10.1123/jmld.2023-0032","DOIUrl":"https://doi.org/10.1123/jmld.2023-0032","url":null,"abstract":"Previous studies have identified patterns of coordinated control when adults combine gait and grasping. What remains unclear is whether the coordination of these two tasks differs between adolescent and adult groups. Groups of adults and adolescents were asked to walk across an instrumented gait mat in three conditions: walk forward, walk and grasp a small target, and walk and grasp a large target. Spatiotemporal measures of gait/gait variability and grasp/grasp variability were quantified. Both adolescents and young adults exhibited decreased velocity, decreased step-extremity ratio, and increased percent of gait cycle spent in double support when grasping compared to walking alone. The major influence of grasping was seen during the final step before grasp in both groups. Change scores between walk forward and walk and grasp conditions were larger for adolescents. Furthermore, spatiotemporal measures of gait and grasping were more variable in adolescents. These results suggest that superimposing grasp onto gait is more challenging for adolescents than young adults. The challenges associated with combining these two tasks is particularly evident in the last step prior to object contact and suggests that the increased planning and execution demands required to perform these coordinated skills affects adolescents to a greater extent than young adults.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135703859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Virtual Reality for Action Observation Does Not Enhance Motor Learning of a Complex Weightlifting Task 动作观察的虚拟现实不能增强复杂举重任务的运动学习

IF 1.3

Journal of Motor Learning and Development Pub Date : 2023-01-01 DOI: 10.1123/jmld.2022-0069

Michael A. Weise, J. A. Vicente, Belle P. Ponce de Leon, Makena Savola, Kimberly Hernandez, Sean P. Flanagan, J. Hinkel-Lipsker

{"title":"Virtual Reality for Action Observation Does Not Enhance Motor Learning of a Complex Weightlifting Task","authors":"Michael A. Weise, J. A. Vicente, Belle P. Ponce de Leon, Makena Savola, Kimberly Hernandez, Sean P. Flanagan, J. Hinkel-Lipsker","doi":"10.1123/jmld.2022-0069","DOIUrl":"https://doi.org/10.1123/jmld.2022-0069","url":null,"abstract":"Action observation, where a learner observes a model demonstrating a skill, has long been established in the literature as an effective means to acquire motor skills. Developments in virtual reality technology have made it possible for a 3D action observation viewing perspective, theoretically providing a viewing experience similar to observing a live performer. However, very little work has compared these two media and their effects on motor learning outcomes. In this current study, healthy novice participants to Olympic lifting (specifically the clean and jerk; n = 36) learned the exercise through observing a model demonstration in virtual reality (3D group) or on a computer screen (2D group). A third group (control) did not engage in action observation. Results indicate that following training, the 2D group more frequently used a three-step lifting pattern, and the 2D and 3D groups lifted with a significantly greater horizontal displacement compared with the control group. Also, the 2D group was more likely to use a proximal-to-distal joint coordination strategy during the second pull of the exercise. These results further the idea that only small parts of pertinent visual information are needed for action observation, and that virtual reality may provide too much information to novice learners.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"111 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79448782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Associations of Monitor-Independent Movement Summary and Health-Related Fitness With Gross Motor Skills in Young Children 幼儿大肌肉运动技能与监测独立运动总结和健康相关健身的关系

IF 1.3

Journal of Motor Learning and Development Pub Date : 2023-01-01 DOI: 10.1123/jmld.2022-0073

R. Burns, You Fu, Yang Bai, W. Byun

{"title":"Associations of Monitor-Independent Movement Summary and Health-Related Fitness With Gross Motor Skills in Young Children","authors":"R. Burns, You Fu, Yang Bai, W. Byun","doi":"10.1123/jmld.2022-0073","DOIUrl":"https://doi.org/10.1123/jmld.2022-0073","url":null,"abstract":"The purpose of this study was to determine the associations of device-based assessments of physical activity (PA) and health-related fitness (HRF) with gross motor skills (GMS) in preschool-aged children. Participants were 3- to 5-year-old children (N = 316; 49.6% female) who participated in the 2012 National Youth Fitness Survey. GMS was assessed using the gross motor quotient calculated from the Test for Gross Motor Development—Second Edition. PA was assessed using wrist-worn ActiGraph GT3X accelerometers with raw triaxial acceleration data summarized using monitor-independent movement summary units (MIMS). Analyzed metrics included average MIMS per day and peak 30-min MIMS. HRF assessment consisted of a plank score and a sum of skinfold assessment. Weighted hierarchical regressions tested the associations between PA, HRF, and GMS variables with a secondary weighted mediation analysis that examined whether HRF mediated the association between PA and GMS. Peak 30-min MIMS significantly correlated with GMS (b = 0.17, p = .005). Plank scores had the strongest correlation with GMS (b = 0.23, p = .004), and weighted mediation analyses revealed that plank scores partially mediated the association between peak 30-min MIMS and GMS (indirect effect = 0.03, p = .01, 23.1% mediation). Peak 30-min MIMS significantly associated with GMS in preschool children, an association partially mediated by core muscular endurance.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"13 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83588345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prefrontal Cortex Activity in Siblings With and Without Developmental Coordination Disorder: An Exploratory Study 有或没有发育性协调障碍的兄弟姐妹的前额叶皮层活动:一项探索性研究

IF 1.3

Journal of Motor Learning and Development Pub Date : 2023-01-01 DOI: 10.1123/jmld.2021-0065

Mandy S. Plumb, Megan Charity, Kimberly Milla, B. Bodt, N. Getchell

{"title":"Prefrontal Cortex Activity in Siblings With and Without Developmental Coordination Disorder: An Exploratory Study","authors":"Mandy S. Plumb, Megan Charity, Kimberly Milla, B. Bodt, N. Getchell","doi":"10.1123/jmld.2021-0065","DOIUrl":"https://doi.org/10.1123/jmld.2021-0065","url":null,"abstract":"Background: Previous research suggests that children with or at risk of probable developmental coordination disorder (pDCD) activate different areas of the brain when performing certain motor skills compared with typically developing (TD) children. This study used functional near-infrared spectroscopy to compare prefrontal cortex (PFC) activity in TD and pDCD during the completion of manual (three-dimensional [3D]) and computerized versions (two-dimensional) of the Tower of Hanoi (ToH) puzzle. Method: A total of 12 children (TD and pDCD; one female/11 male, , SD ± 1.52 years) performed the two-dimensional and 3D conditions of the ToH disk tasks, with equivalent executive function but different motor requirements, with functional near-infrared spectroscopy to compare PFC activity. Results: Interestingly, brain oxygenation levels were more apparent in the 3D versus two-dimensional ToH. In the 3D, there were large differences between pairs of discordant sibling sets and this was located to the right medial PFC, with pDCD exhibiting less activation in this region. Conclusion: While only exploratory, we have identified potential differences in the right medial PFC region, which differs within sibling sets with different pDCD status. These results concur with previous studies and are an area that needs to be explored further with a larger cohort of TD and pDCD.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"25 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84481699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Isokinetic Trunk Flexor and Extensor Strength on Dynamic Balance in Children 等速躯干屈伸肌力对儿童动态平衡的影响

IF 1.3

Journal of Motor Learning and Development Pub Date : 2023-01-01 DOI: 10.1123/jmld.2022-0078

S. Eustace, M. Wdowski, J. Tallis, Michael Duncan

{"title":"The Influence of Isokinetic Trunk Flexor and Extensor Strength on Dynamic Balance in Children","authors":"S. Eustace, M. Wdowski, J. Tallis, Michael Duncan","doi":"10.1123/jmld.2022-0078","DOIUrl":"https://doi.org/10.1123/jmld.2022-0078","url":null,"abstract":"This study assessed whether trunk flexor and extensor strength were predictors of time to stability (TTS) and center of pressure (CoP) during hop and hold tasks in children. Seventeen boys (age, 10.1 ± 1.6 years; height, 1.45 ± 0.11 m; mass, 26.7 ± 7.83 kg) undertook isokinetic strength assessments of concentric and eccentric trunk flexors/extensors at 60°/s, and anterior/medial hop tasks. Hierarchical multiple regressions determined whether concentric and eccentric trunk flexor/extensor peak torques predict TTS using a composite score (CompX CompY CompZ) and CoPX and CoPY. Concentric trunk flexors were the strongest predictor for TTS CompXY, with concentric flexion and eccentric extension predicting TTS CompY. All muscle actions were also strong predictors for CoPY during hop tasks. These findings have implications for the assessment of trunk musculature strength and measures of postural control within a young healthy population. The development of trunk musculature strength may aid improvements in dynamic balance tasks in children, with implications for fall and injury risk. To improve trunk musculature strength and the potential to maintain postural control, a combination of concentric and eccentric exercises with other training modalities appears relevant due to the increased relevance to the demands of balance maintenance.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"48 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84147873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Effect of Gender Stereotype Threat and Conceptions of Ability on Motor Learning and Working Memory 性别刻板印象威胁和能力观念对运动学习和工作记忆的影响

IF 1.3

Journal of Motor Learning and Development Pub Date : 2023-01-01 DOI: 10.1123/jmld.2022-0047

Narges Nahidi, E. Saemi, M. Doustan, Joshua Aronson, Raphaël Laurin

{"title":"The Effect of Gender Stereotype Threat and Conceptions of Ability on Motor Learning and Working Memory","authors":"Narges Nahidi, E. Saemi, M. Doustan, Joshua Aronson, Raphaël Laurin","doi":"10.1123/jmld.2022-0047","DOIUrl":"https://doi.org/10.1123/jmld.2022-0047","url":null,"abstract":"The present study explored the effects of gender stereotype threat and conceptions of ability on motor learning and working memory in novice female learners. Sixty participants (Mage = 21.92 years, SDage = 1.74) were randomly assigned into a gender stereotype threat and a control group (neutral; without stereotype threat). Each group was, in turn, randomly divided into two subgroups: inherent ability and acquired skill. The tasks assigned to the participants included soccer dribbling and the n-back test. In the pretest, the individuals only performed one dribbling trial, whereas in the practice phase, the individuals performed 12 blocks of five trials based on their respective test conditions. During retention and transfer under pressure (48 hr after practice for both tests), the participants carried out one block of five trials. The participants also completed the n-back test in the pretest, posttest, and retention phases. In both motor performance and learning, the findings suggested that both gender stereotype threat and inherent ability variables can negatively influence the soccer dribbling skill (p < .05). However, regarding working memory, the results could not show any significant difference between the groups (p > .05). How these variables affect or do not affect motor learning as well as working memory and how the results are applied in the motor domain are discussed.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"85 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89437936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Reproducibility of Power Analyses in Motor Behavior Research 论动力分析在运动行为研究中的可重复性

IF 1.3

Journal of Motor Learning and Development Pub Date : 2023-01-01 DOI: 10.1123/jmld.2022-0061

B. McKay, Mariane F. B. Bacelar, Michael J. Carter

{"title":"On the Reproducibility of Power Analyses in Motor Behavior Research","authors":"B. McKay, Mariane F. B. Bacelar, Michael J. Carter","doi":"10.1123/jmld.2022-0061","DOIUrl":"https://doi.org/10.1123/jmld.2022-0061","url":null,"abstract":"Recent metascience suggests that motor behavior research may be underpowered, on average. Researchers can perform a priori power analyses to ensure adequately powered studies. However, there are common pitfalls that can result in underestimating the required sample size for a given design and effect size of interest. Critical evaluation of power analyses requires successful analysis reproduction, which is conditional on the reporting of sufficient information. Here, we attempted to reproduce every power analysis reported in articles (k = 84/635) in three motor behavior journals between January 2019 and June 2021. We reproduced 7% of analyses using the reported information, which increased to 43% when we assumed plausible values for missing parameters. Among studies that reported sufficient information to evaluate, 63% reported using the same statistical test in the power analysis as in the study itself, and in 77%, the test addressed at least one of the identified hypotheses. Overall, power analyses were not commonly reported with sufficient information to ensure reproducibility. A nontrivial number of power analyses were also affected by common pitfalls. There is substantial opportunity to address the issue of underpowered research in motor behavior by increasing adoption of power analyses and ensuring reproducible reporting practices.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"2 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89876731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The Körperkoordinations Test Für Kinder for Iranian Youth: Factor Structure, Measurement Invariance, and Covariates 伊朗青年的Körperkoordinations检验<e:1> r Kinder:因素结构、测量不变性和协变量

IF 1.3

Journal of Motor Learning and Development Pub Date : 2023-01-01 DOI: 10.1123/jmld.2021-0060

S. Salami, Paulo Felipe Ribeiro Bandeira, Clarice M. L. Martins, L. Hardy, A. Shams, P. S. Dehkordi

{"title":"The Körperkoordinations Test Für Kinder for Iranian Youth: Factor Structure, Measurement Invariance, and Covariates","authors":"S. Salami, Paulo Felipe Ribeiro Bandeira, Clarice M. L. Martins, L. Hardy, A. Shams, P. S. Dehkordi","doi":"10.1123/jmld.2021-0060","DOIUrl":"https://doi.org/10.1123/jmld.2021-0060","url":null,"abstract":"Purpose: To examine the factor structure and measurement invariance of the Körperkoordinations Test Für Kinder (KTK) and covariates of motor competence in a sample of Iranian children aged 5–14 years. Methods: Participants were children aged 5–14 years (N = 432, 61% boys). Age, sex, and body mass index were collected. Confirmatory factor analysis (CFA) was conducted to investigate the factorial structure of KTK and multigroup CFA carried out to test measurement invariance across sexes and age groups. In addition, we calculated a model with covariates to identify the association between KTK items with age, sex, and body mass index z score. Results: CFA supported the construct validity of a one-factor model with an appropriate fit indices that the four subtests loaded on the same factor namely motor competence. Furthermore, according to the magnitude of changes in root mean square error of approximation and comparative fit index between nested models, the assumption of KTK measurement invariance across age-groups and sex were valid. Finally, adequate fit indices were found for the multigroup CFA path model of KTK with the covariates sex, age, and body mass index z score. Conclusion: The KTK is a valid, reliable, and valuable instrument for assessing motor competence of Iranian children and adolescents.","PeriodicalId":37368,"journal":{"name":"Journal of Motor Learning and Development","volume":"45 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85175311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0