Gaze pursuit and arm control of adolescent males diagnosed with attention deficit hyperactivity disorder (ADHD) and normal controls: evidence of a dissociation in processing visual information of short and long duration

Three-dimensional kinematic analysis of line of gaze, arm and ball was used to describe the visual and motor behaviour of male adolescents diagnosed with attention deficit hyperactivity disorder (ADHD). The ADHD participants were tested when both on (ADHD-On) and off (ADHD-Off) their medication and compared to age-matched normal controls in a modified table tennis task that required tracking the ball and hitting to cued right and left targets. Long-duration information was provided by a pre-cue, in which the target was illuminated approximately 2 s before the serve, and short-duration information by an early-cue illuminated about 350 ms after the serve, leaving -500 ms to select the target and perform the action. The ADHD groups differed significantly from the control group in both the pre-cue and early-cue conditions in being less accurate, in having a later onset and duration of pursuit tracking, and a higher frequency of gaze on and off the ball. The use of medication significantly reduced the gaze frequency of the ADHD participants, but surprisingly this did not lead to an increase in pursuit tracking, suggesting a barrier was reached beyond which ball flight information could not be processed. The control and ADHD groups did not differ in arm movement onset, duration and velocity in the short-duration early-cue condition; in the long-duration pre-cue condition, however, the ADHD group's movement time onset and arm velocity differed significantly from controls. The results show that the ADHD groups were able to process short-duration information without experiencing adverse effects on their motor behaviour; however, long-duration information contributed to irregular movement control.

Características dos enunciados dispersos de uma criança com diagnóstico fonoaudiológico de distúrbio de linguagem

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Os desafios contemporâneos do estágio supervisionado em Serviço Social na formação acadêmica

Pós-graduação em Serviço Social - FCHS

O tempo e as imagens de mídia: capas de revistas como signos de um olhar contemporâneo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Hilda Hilst e o seu pendulear em Fluxo-floema

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relações na escola da infância: perspectivas teóricas e didático-pedagógicas

This article portrays pathways and studies, arising from research already completed on relationships that constitute the process of appropriation-objectification of the world of human culture by the child at the School for Children, under the gaze of Historical-Cultural Approach. The studies had been configured in accord with a theoretical look that understands the relations as propeller of the humanization process and the child as capable to learn since very small. Initially, there is deepening of theoretical issues concerning the regularities of human development between three and six years old, based on the propositions of the Historical-Cultural Approach. Subsequently, it presents results of the routes methodological that integrated observation sessions of educational practice in schools in early childhood education, involving the relationship between children, adults and objects, as well as sessions of designs and semi-structured interviews with the children. These results show the resulting analysis of the pedagogical implications of the propositions of the HistoricalCultural Approach about the humanization process, mediation and activity.

Direitos humanos e demandas escolares: problematizando a aproximação entre psicologia e conselho tutelar

This paper presents the main achievements in the field of children and youngsters social rights and provides some data on Brazilian education that show the discrepancy between the legal guidelines and the educational situation of children and youngsters within public schools. It presents a critical approach to the ways production and attendance of school problems have been interpreted and shows the dimension in which social facilities established to provide protection to children and adolescents have not been able to ensure a good quality schooling. It highlights the Guardian Council as addressee of school demands and stands out the urgency of debating the violation of fundamental rights such as the lack of quality in education, the repeated situations of failure, and dropping out experienced by a significant number of poor students. The analyzes developed point to the fragility of the relationship between school and Guardian Council revealing an institutional dynamic that individualize social issues. The analyzes developed also suggest the possibility of including Psychology mediation to school, family and Guardian Council. These aim to break the hegemony of the gaze individualizing approach that blame individual and / or family for school failures. This all present to professionals the urgenct for a critical attitude, based on theoretical and practical approaches able to research and propose critical interventions in order to overcome the production of educational exclusion.

Análise dos ciclos operacionais para especificação de motores de indução trifásicos

This paper addresses the three-phase induction motor by a thermal analysis of its operation, under the gaze of the standards of the Brazilian Association of Technical Standards that deal with working arrangements (operating cycles) defined by appropriate tests and for each use of the motor basis of this study, emphasizing especially the fact of the first three cycles are the cycles with greater possibilities of use for scaling a three-phase induction motor for the main industrial processes, will also be made an analysis of the reasons why the three-phase induction motors have a loss of power at altitudes above 1000 m above sea level and some methods of how to define how a three phase induction motor can be used in one of the first three working arrangements

The effects of anxiety on visual search, movement kinematics, and performance in table tennis: A test of Eysenck and Calvo's processing efficiency theory

Processing efficiency theory predicts that anxiety reduces the processing capacity of working memory and has detrimental effects on performance. When tasks place little demand on working memory, the negative effects of anxiety can be avoided by increasing effort. Although performance efficiency decreases, there is no change in performance effectiveness. When tasks impose a heavy demand on working memory, however, anxiety leads to decrements in efficiency and effectiveness. These presumptions were tested using a modified table tennis task that placed low (LWM) and high (HWM) demands on working memory. Cognitive anxiety was manipulated through a competitive ranking structure and prize money. Participants' accuracy in hitting concentric circle targets in predetermined sequences was taken as a measure of performance effectiveness, while probe reaction time (PRT), perceived mental effort (RSME), visual search data, and arm kinematics were recorded as measures of efficiency. Anxiety had a negative effect on performance effectiveness in both LWM and HWM tasks. There was an increase in frequency of gaze and in PRT and RSME values in both tasks under high vs. low anxiety conditions, implying decrements in performance efficiency. However, participants spent more time tracking the ball in the HWM task and employed a shorter tau margin when anxious. Although anxiety impaired performance effectiveness and efficiency, decrements in efficiency were more pronounced in the HWM task than in the LWM task, providing support for processing efficiency theory.

Reação do tecido conjuntivo subcutâneo e de feridas incisas em contacto com gaze furacinada: estudo histológico

Strips of gauze and furacin gauze were implanted into the subcutaneous space and employed as dressing of dorsal incisions of albino rats. The animals were sacrificed after 24 hours, 2, 5, and 7 post-operative days. The pieces were processed for histological examination. It is possible to conclude that furacin gauze provokes more severe inflammatory reactions and does not favour connective neoformation and epithelization. Furacin gauze should be utilized only as a germicidal aim.

Literatura e cinema: representações do feminino em Washington Square, Daisy Miller e The Europeans

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)