Summary.-The aim of this study was to compare the learning process of a highly complex ballet skill following demonstrations of point-light and video models. 16 participants divided into point-light and video groups (nȶƽȶŞǼȱȱŗŜŖȱ ȱȱȱĴǰȱ¢ȱȱȱȱȱŘŖȱǰȱȱȱȱ demonstration and practice, with a retention test a day later. Measures of head and trunk oscillation, coordination disparity from the model, and movement time difference showed similarities between video and point-light groups; ballet experts' evaluations indicated superiority of performance in the video over the point-light ǯȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱȱȱȱ ǰȱȱȱȱ¢ȱȱĜ¢ȱȱ higher relevance of information contained in biological motion models applied to learning of complex motor skills.Perceiving other persons' actions, emotions, and intentions is a very ȱȱǻ ȱǭȱěǰȱŘŖŖŝǼǯȱȱȱȱȱȱ human movement, one of the aspects necessary to observational learning ǻ ǰȱ ǰȱ¢ǰȱǰȱǭȱ ǰȱŘŖŖŝǼǯȱȱȱȱ-ȱ ȱ ȱ ȱ ȱ ȱ ȱ ȱ ǰȱ ¢ȱ -serving others, into motor commands to reproduce the observed behavior ǻǰȱǰȱ¢ǰȱǭȱ ǰȱŘŖŖŝǼǯ ȱȱȱȱȱȱǰȱȱȱȱȱȱ body segments in a new and functionally integrated manner. Important visual information available to the learner when observing others' activity ȱȱȱȱȱȱȱȱ¢ȱǻ¢ȱǭȱ ǰȱŗşŞśǼǯȱ-cations of information regarding this relative motion are stronger in the initial stage of motor learning than in the more advanced ones (Newell, ŗşŞśǼǯ 1 Address correspondence to Sérgio Tosi Rodrigues, Laboratory of Information, Vision, and ȱǻ Ǽǰȱ ǯȱȱ¢ȱ ǰȱȱ¢ȱȱ¨ȱȱǻ Ǽǰȱ ǯȱLuis ȱ ħȱ ǰȱŗŚȬŖŗȮȱǰȱ ȱŗŝŖřřȬřŜŖǰȱ ǰȱǰȱ £ȱȱȬȱ ǻȓǯǯǼǯ 2 This study was supported by scholarships to M. C. Ferracioli (Programa Institucional de ȱȱ³¨ȱ Çęȱȱ ȱȱȱ ȱ Çęȱȱ-àǰȱ £Ǽȱȱǯȱ ǯȱ ȱǻ ³¨ȱȱ ȱ¥ȱȱȱ ȱȱ¨ȱ-ǰȱ £ȮȱǛŖŚȦŗŖŗşřȬŗǼȱȱȱȱȱǻ ³¨ȱȱȱ ȱ ȱȮȱǛŖŖşŖȦŗŖȬ ǼǯȱThe authors would like to thank M.Sc. Rodrigo Carvalho ǻ ·ȱ·ȱȱȃȱȱ¤ǰȄȱ¨ȱȱȱ¢ǰȱ ǰȱ £Ǽȱ for his technical support on constructing the video models, and Mrs. Marina Denardi for revising the manuscript.

People commonly use pre-cue information to advance and reduce the information processing time required for a motor task (e.g., motor planning). However, children with developmental coordination disorder (DCD) exhibit difficulties performing pre-cued goal-directed tasks. The purpose of the present study was to investigate the use of valid, neutral, and invalid pre-cue information for a goal-directed task. The participants were 11 children with DCD (mean age = 7.94 yrs.) and 11 typically developed (TD) age-and gender-matched children. The children with DCD exhibited delayed motor planning (e.g., reaction time) under the invalid condition compared to that of the TD children. The children with DCD used atypical strategies for motor execution and depended more on online corrections (e.g., increased deceleration time and movement units) to reach the target. These results suggest that children with DCD have difficulties handling unpredictable situations and that the use of atypical motor execution strategies did not affect movement time.

-People from all age groups and social backgrounds have always sought to learn swimming. However, the swimming learning process is usually considered repetitive and tiring, requiring the teacher to use methods that motivate students to join the practice without ignoring the need for improvement in their performance. This study assessed motivation during a breaststroke learning process in students who received videotape feedback, verbal feedback, and who did not receive any feedback during practice. Thirtyseven swimming inexperienced students were divided into three groups: Video (n=13), which received videotape feedback; Verbal (n=15), which received verbal feedback; and Control (n=9), which did not receive any feedback during experimental phases (pre-test, acquisition (5 days), post-test and retention). Participants completed a questionnaire based on Likert scale for motivation assessment. Scores were given to their performance by a swimming teacher to assess breaststroke learning during each experimental phase. Results of motivation assessment showed that students who received feedback (videotape or verbal) felt more motivated during practice than those who did not receive any feedback. Regarding the breaststroke learning, all participants improved their performance along experimental phases, but, during the retention one, Verbal group's performance was considered superior to the Control group's performance. This study concluded that the use of videotape and verbal feedback has motivational results on breaststroke learning, and that it is effective in the learning process.

Abstract-Developmental Coordination Disorder (DCD), a chronic and usually permanent condition found in children, is characterized by motor impairment that interferes with a child's activities of daily living and with academic achievement. One of the most popular tests for the quantitative diagnosis of DCD is the Movement Assessment Battery for Children (MABC). Based on the Battery's standardized scores, it is possible to identify children with typical development, children at risk of developing DCD, and children with DCD. This article describes a computational system we developed to assist with the analysis of results obtained in the MABC test. The tool was developed for the web environment and its database provides integration of MABC data. Thus, researchers around the world can share data and develop collaborative work in the DCD field. In order to help analysis processes, our system provides services for filtering data to show more specific sets of information and present the results in textual, table, and graphic formats, allowing easier and more comprehensive evaluation of the results. Keywords: computational analysis environment, developmental coordination disorder, Movement Assessment Battery for ChildrenResumo-"Ambiente de análise integrada para Movement Assessment Battery for Children." O Transtorno do Desenvolvimento da Coordenação (TDC), uma condição crônica e, geralmente, encontrada em crianças, é caracterizado por comprometimento motor que interfere nas atividades de vida diária de uma criança e em seu desempenho acadêmico. Um dos testes mais populares para o diagnóstico quantitativo do TDC é a bateria Movement Assessment Battery for Children (MABC). Com base em escores padronizados da bateria, é possível identificar as crianças com desenvolvimento típico, crianças com risco de desenvolver o TDC e crianças com TDC. Este artigo descreve um sistema computacional que desenvolvemos para ajudar com a análise dos resultados obtidos na bateria MABC. A ferramenta foi desenvolvida para o ambiente web e sua base de dados fornece integração dos dados da MABC. Assim, pesquisadores de todo o mundo podem compartilhar dados e desenvolver trabalho colaborativo na área do TDC. A fim de ajudar os processos de análise, nosso sistema fornece serviços de filtragem de dados para mostrar conjuntos mais específicos de informação e apresentar os resultados em formato de texto, tabela e gráficos, permitindo a avaliação mais fácil e mais abrangente dos resultados. Palavras-chaves: ambiente de análise computacional, transtorno do desenvolvimento da coordenação, Movement Assessment Battery for ChildrenResumen-"Ambiente de análisis integrada para Movement Assessment Battery for Children." Trastorno del Desarrollo de la Coordinación (TDC), una condición permanente crónica y generalment se encuentran en los niños, se caracteriza por alteraciones motoras que interfiere con las actividades de la vida diaria de un niño y con el rendimiento académico. Una de las pruebas más populares para el diagnóstico cuantitativo del TDC es la bate...