982 resultados para Sensory-motor integration
Resumo:
A paralisia cerebral, doença não progressiva, compromete movimentos e postura. A fisioterapia atual volta-se para um tratamento holístico. Brincar proporciona desenvolvimento neuropsicomotor. O presente estudo tem como objetivos investigar a opinião de fisioterapeutas que atuam em neuropediatria sobre a utilização do brinquedo em sua prática clínica e verificar sua possível utilização em intervenções junto a crianças com paralisia cerebral. Utiliza-se inicialmente de questionário de opinião junto a 50 fisioterapeutas das diversas clínicas da Associação de Apoio a Criança com Deficiência, AACD - SP, verificando a utilização de brinquedos face aos diversos objetivos fisioterapeuticos; a seguir, realiza observação de 60 atendimentos, em fisioterapia aquática e de solo, de crianças com paralisia cerebral, identificando a utilização de cada categoria de brinquedo relativo ao objetivo terapêutico. Os dados obtidos no questionário revelaram em ordem decrescente utilização de: brinquedos sensório-motores 57,4%, para ganho de equilíbrio (E); 22,2% para coordenação motora (CM); 18,5% para aquisições posturais (AP) e 2% para relaxamento muscular (RM). Em relação aos jogos de faz-de-conta: 37% (E); 39% (AP) e 24% (CM).Para os jogos de regras: 54% (E); 35% (CM); 11% (AP). Com os jogos de montagem: 52% (CM); 24% (E); 24% (AP). Os dados da observação revelaram que os principais objetivos terapêuticos visados com utilização de brinquedos foram: alongamento, primeiro 10 ; fortalecimento muscular, equilíbrio e treino de marcha de 10 a 40 . Quanto à modalidade de brinquedo observada houve predomínio do faz de conta no início e no fim da sessão e das demais categorias no meio, de forma intercalada. Os dados da observação coincidiram com os do questionário revelando utilização sistemática de brinquedos com objetivos fisioterapeuticos.(AU)
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In a series of experiments, we tested category-specific activation in normal parti¬cipants using magnetoencephalography (MEG). Our experiments explored the temporal processing of objects, as MEG characterises neural activity on the order of milliseconds. Our experiments explored object-processing, including assessing the time-course of ob¬ject naming, early differences in processing living compared with nonliving objects and processing objects at the basic compared with the domain level, and late differences in processing living compared with nonliving objects and processing objects at the basic compared with the domain level. In addition to studies using normal participants, we also utilised MEG to explore category-specific processing in a patient with a deficit for living objects. Our findings support the cascade model of object naming (Humphreys et al., 1988). In addition, our findings using normal participants demonstrate early, category-specific perceptual differences. These findings are corroborated by our patient study. In our assessment of the time-course of category-specific effects as well as a separate analysis designed to measure semantic differences between living and nonliving objects, we found support for the sensory/motor model of object naming (Martin, 1998), in addition to support for the cascade model of object naming. Thus, object processing in normal participants appears to be served by a distributed network in the brain, and there are both perceptual and semantic differences between living and nonliving objects. A separate study assessing the influence of the level at which you are asked to identify an object on processing in the brain found evidence supporting the convergence zone hypothesis (Damasio, 1989). Taken together, these findings indicate the utility of MEG in exploring the time-course of object processing, isolating early perceptual and later semantic effects within the brain.
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It is consider the new global models for society of neuronet type. The hierarchical structure of society and mentality of individual are considered. The way for incorporating in model anticipatory (prognostic) ability of individual is considered. Some implementations of approach for real task and further research problems are described. Multivaluedness of models and solutions is discussed. Sensory-motor systems analogy also is discussed. New problems for theory and applications of neural networks are described.
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INTRODUCTION: We investigated whether interictal thalamic dysfunction in migraine without aura (MO) patients is a primary determinant or the expression of its functional disconnection from proximal or distal areas along the somatosensory pathway. METHODS: Twenty MO patients and twenty healthy volunteers (HVs) underwent an electroencephalographic (EEG) recording during electrical stimulation of the median nerve at the wrist. We used the functional source separation algorithm to extract four functionally constrained nodes (brainstem, thalamus, primary sensory radial, and primary sensory motor tangential parietal sources) along the somatosensory pathway. Two digital filters (1-400 Hz and 450-750 Hz) were applied in order to extract low- (LFO) and high- frequency (HFO) oscillatory activity from the broadband signal. RESULTS: Compared to HVs, patients presented significantly lower brainstem (BS) and thalamic (Th) HFO activation bilaterally. No difference between the two cortical HFO as well as in LFO peak activations between the two groups was seen. The age of onset of the headache was positively correlated with HFO power in the right brainstem and thalamus. CONCLUSIONS: This study provides evidence for complex dysfunction of brainstem and thalamocortical networks under the control of genetic factors that might act by modulating the severity of migraine phenotype.
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This study investigated the opinions regarding inclusion of parents of both disabled and nondisabled elementary children from a large suburban county. An opinion survey combining Wilczenski's Attitudes Toward Inclusive Education Scale with additional questions was distributed to 1170 children from 24 schools. Three research questions focused on differences between mean parental responses as they related to the inclusion and disability status of the parent's child. Results from the 270 respondents indicated that parents with disabled children had more favorable opinions about inclusion than did those with nondisabled children. Parents with included children were more favorable toward inclusion than were parents whose children were not included. Parents with included disabled children were more accepting of inclusion than were those with nondisabled children in inclusive settings. Parents' answers differed depending on the type of disability being included. Regardless of their child's disability or inclusion status, the ranking for disability types from most acceptable for inclusion to least acceptable were: social, sensory, motor, academic and behavioral. Results across types of questions, including questions relating to acceptance and general inclusion issues, indicated consistently more favorable opinions of parents with disabled children, included children and disabled children in inclusive classes. Two additional research questions examined parental responses as they related to demographic characteristics of the parents and of the schools their children attended. Analysis of Variance found only one significant main effect for any parental demographic variable. This difference was for the number of parents' elementary children when comparing parents with and without disabled children. The only significant main effects of demographics of schools the parents' children attended were for the area of the county and for schools with differing percentages of severely disabled students when comparing responses of parents with disabled and nondisabled children. For all research questions, tests indicated low effect sizes and moderate to high power levels. These results, and the fact that means for all groups were in the middle range of response choices, indicate that there may be little practical significance to the overall results. Further studies should investigate the trends found in this study. ^
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En el presente trabajo, se analizan los factores que intervienen en la interpretación de enunciados asumiendo que, en tanto proceso, la interpretación supone la interacción de distintos sistemas modulares de la mente: La Facultad del Lenguaje (FdeL), y los sistemas sensorio-motriz (SM) y conceptual-intencional (CI). Este último incluye mecanismos para la elaboración de representaciones conceptuales (C) y mecanismos inferenciales involucrados más globalmente en la fijación de estados intencionales (I). Estos sistemas externos a la Facultad del Lenguaje imponen restricciones de manera tal que los núcleos de información que llegan a las interfaces sean legibles por los sistemas SM y CI (Chomsky, 1995-2008). En este sentido, entender la interpretación como proceso conlleva atender a la relación entre los aspectos puramente lingüísticos (sintaxis, semántica), los prosódicos, y los inferenciales (pragmática). En este trabajo, se busca comprender el funcionamiento de aquellos elementos del sistema lingüístico que propician la obtención de los supuestos necesarios para llevar a cabo ese proceso. ;Adoptando un paralelismo entre las categorías sintácticas y las semánticas postuladas en el relevantismo, se intenta dilucidar cómo actúa la variada evidencia lingüística que provee un H en la comunicación, de modo que un O puede arribar a alguna hipótesis del 'significado de H'. A partir del análisis de distintos enunciados, se explora el alcance de ese paralelismo y se llega a una caracterización tentativa del proceso de interpretación. Finalmente, siguiendo ideas de distintos autores, se propone concebir la interfaz FdeL-CI a partir de pares primitivos de información, que son relevantes a todos los sistemas cognitivos involucrados en la comunicación
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En el presente trabajo, se analizan los factores que intervienen en la interpretación de enunciados asumiendo que, en tanto proceso, la interpretación supone la interacción de distintos sistemas modulares de la mente: La Facultad del Lenguaje (FdeL), y los sistemas sensorio-motriz (SM) y conceptual-intencional (CI). Este último incluye mecanismos para la elaboración de representaciones conceptuales (C) y mecanismos inferenciales involucrados más globalmente en la fijación de estados intencionales (I). Estos sistemas externos a la Facultad del Lenguaje imponen restricciones de manera tal que los núcleos de información que llegan a las interfaces sean legibles por los sistemas SM y CI (Chomsky, 1995-2008). En este sentido, entender la interpretación como proceso conlleva atender a la relación entre los aspectos puramente lingüísticos (sintaxis, semántica), los prosódicos, y los inferenciales (pragmática). En este trabajo, se busca comprender el funcionamiento de aquellos elementos del sistema lingüístico que propician la obtención de los supuestos necesarios para llevar a cabo ese proceso. ;Adoptando un paralelismo entre las categorías sintácticas y las semánticas postuladas en el relevantismo, se intenta dilucidar cómo actúa la variada evidencia lingüística que provee un H en la comunicación, de modo que un O puede arribar a alguna hipótesis del 'significado de H'. A partir del análisis de distintos enunciados, se explora el alcance de ese paralelismo y se llega a una caracterización tentativa del proceso de interpretación. Finalmente, siguiendo ideas de distintos autores, se propone concebir la interfaz FdeL-CI a partir de pares primitivos de información, que son relevantes a todos los sistemas cognitivos involucrados en la comunicación
Resumo:
En el presente trabajo, se analizan los factores que intervienen en la interpretación de enunciados asumiendo que, en tanto proceso, la interpretación supone la interacción de distintos sistemas modulares de la mente: La Facultad del Lenguaje (FdeL), y los sistemas sensorio-motriz (SM) y conceptual-intencional (CI). Este último incluye mecanismos para la elaboración de representaciones conceptuales (C) y mecanismos inferenciales involucrados más globalmente en la fijación de estados intencionales (I). Estos sistemas externos a la Facultad del Lenguaje imponen restricciones de manera tal que los núcleos de información que llegan a las interfaces sean legibles por los sistemas SM y CI (Chomsky, 1995-2008). En este sentido, entender la interpretación como proceso conlleva atender a la relación entre los aspectos puramente lingüísticos (sintaxis, semántica), los prosódicos, y los inferenciales (pragmática). En este trabajo, se busca comprender el funcionamiento de aquellos elementos del sistema lingüístico que propician la obtención de los supuestos necesarios para llevar a cabo ese proceso. ;Adoptando un paralelismo entre las categorías sintácticas y las semánticas postuladas en el relevantismo, se intenta dilucidar cómo actúa la variada evidencia lingüística que provee un H en la comunicación, de modo que un O puede arribar a alguna hipótesis del 'significado de H'. A partir del análisis de distintos enunciados, se explora el alcance de ese paralelismo y se llega a una caracterización tentativa del proceso de interpretación. Finalmente, siguiendo ideas de distintos autores, se propone concebir la interfaz FdeL-CI a partir de pares primitivos de información, que son relevantes a todos los sistemas cognitivos involucrados en la comunicación
Resumo:
The philosophy of minimalism in robotics promotes gaining an understanding of sensing and computational requirements for solving a task. This minimalist approach lies in contrast to the common practice of first taking an existing sensory motor system, and only afterwards determining how to apply the robotic system to the task. While it may seem convenient to simply apply existing hardware systems to the task at hand, this design philosophy often proves to be wasteful in terms of energy consumption and cost, along with unnecessary complexity and decreased reliability. While impressive in terms of their versatility, complex robots such as the PR2 (which cost hundreds of thousands of dollars) are impractical for many common applications. Instead, if a specific task is required, sensing and computational requirements can be determined specific to that task, and a clever hardware implementation can be built to accomplish the task. Since this minimalist hardware would be designed around accomplishing the specified task, significant reductions in hardware complexity can be obtained. This can lead to huge advantages in battery life, cost, and reliability. Even if cost is of no concern, battery life is often a limiting factor in many applications. Thus, a minimalist hardware system is critical in achieving the system requirements. In this thesis, we will discuss an implementation of a counting, tracking, and actuation system as it relates to ergodic bodies to illustrate a minimalist design methodology.
Resumo:
Technologies such as automobiles or mobile phones allow us to perform beyond our physical capabilities and travel faster or communicate over long distances. Technologies such as computers and calculators can also help us perform beyond our mental capabilities by storing and manipulating information that we would be unable to process or remember. In recent years there has been a growing interest in assistive technology for cognition (ATC) which can help people compensate for cognitive impairments. The aim of this thesis was to investigate ATC for memory to help people with memory difficulties which impacts independent functioning during everyday life. Chapter one argues that using both neuropsychological and human computing interaction theory and approaches is crucial when developing and researching ATC. Chapter two describes a systematic review and meta-analysis of studies which tested technology to aid memory for groups with ABI, stroke or degenerative disease. Good evidence was found supporting the efficacy of prompting devices which remind the user about a future intention at a set time. Chapter three looks at the prevalence of technologies and memory aids in current use by people with ABI and dementia and the factors that predicted this use. Pre-morbid use of technology, current use of non-tech aids and strategies and age (ABI group only) were the best predictors of this use. Based on the results, chapter four focuses on mobile phone based reminders for people with ABI. Focus groups were held with people with memory impairments after ABI and ABI caregivers (N=12) which discussed the barriers to uptake of mobile phone based reminding. Thematic analysis revealed six key themes that impact uptake of reminder apps; Perceived Need, Social Acceptability, Experience/Expectation, Desired Content and Functions, Cognitive Accessibility and Sensory/Motor Accessibility. The Perceived need theme described the difficulties with insight, motivation and memory which can prevent people from initially setting reminders on a smartphone. Chapter five investigates the efficacy and acceptability of unsolicited prompts (UPs) from a smartphone app (ForgetMeNot) to encourage people with ABI to set reminders. A single-case experimental design study evaluated use of the app over four weeks by three people with severe ABI living in a post-acute rehabilitation hospital. When six UPs were presented through the day from ForgetMeNot, daily reminder-setting and daily memory task completion increased compared to when using the app without the UPs. Chapter six investigates another barrier from chapter 4 – cognitive and sensory accessibility. A study is reported which shows that an app with ‘decision tree’ interface design (ApplTree) leads to more accurate reminder setting performance with no compromise of speed or independence (amount of guidance required) for people with ABI (n=14) compared to a calendar based interface. Chapter seven investigates the efficacy of a wearable reminding device (smartwatch) as a tool for delivering reminders set on a smartphone. Four community dwelling participants with memory difficulties following ABI were included in an ABA single case experimental design study. Three of the participants successfully used the smartwatch throughout the intervention weeks and these participants gave positive usability ratings. Two participants showed improved memory performance when using the smartwatch and all participants had marked decline in memory performance when the technology was removed. Chapter eight is a discussion which highlights the implications of these results for clinicians, researchers and designers.
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No âmbito do 2º Ciclo de Reabilitação Psicomotora realizou-se o aprofundamento de competências profissionais, na área da saúde mental. O estágio teve lugar na Casa de Saúde de São João de Deus – no Funchal, instituição particular de solidariedade social. A Reabilitação Psicomotora é transdisciplinar com aplicações em diversas áreas, incidindo a aplicação prática em indivíduos com Dificuldades Intelectuais e Desenvolvimentais, e em indivíduos com Alcoolismo, respetivamente, numa Unidade de Evolução Prolongada, e no Centro de Reabilitação Alcoólica. A intervenção realizada será ilustrada mediante a descrição de estudos de caso (N=4). O objetivo da intervenção centrou-se na promoção de um funcionamento independente, sendo as atividades centradas na promoção de regras e normas, manutenção de atividades de vida diária, promoção de relações interpessoais e manutenção de capacidades sensoriomotoras e a promoção da qualidade de vida junto de um grupo de indivíduos com Dificuldades Intelectuais e Desenvolvimentais. Por sua vez, no Centro de Reabilitação Alcoólica (N=10), os objetivos da intervenção foram a tomada de consciência do problema, responsabilização e promoção de hábitos associados a um estilo de vida saudável. A avaliação inclui instrumentos de medida do funcionamento adaptativo (ECAP) e da qualidade de vida (EPR) e a bateria psicomotora (BPM), na unidade de evolução prolongada, e SF-36, e URICA no centro de recuperação de alcoologia, aplicados em dois momentos (inicial e final). Mediante os resultados obtidos a intervenção, que envolveu um conjunto de atividades de mediação corporal, teve um impacto positivo observando-se algumas melhorias no funcionamento adaptativo, qualidade de vida e competências psicomotoras.
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My dissertation emphasizes a cognitive account of multimodality that explicitly integrates experiential knowledge work into the rhetorical pedagogy that informs so many composition and technical communication programs. In these disciplines, multimodality is widely conceived in terms of what Gunther Kress calls “socialsemiotic” modes of communication shaped primarily by culture. In the cognitive and neurolinguistic theories of Vittorio Gallese and George Lakoff, however, multimodality is described as a key characteristic of our bodies’ sensory-motor systems which link perception to action and action to meaning, grounding all communicative acts in knowledge shaped through body-engaged experience. I argue that this “situated” account of cognition – which closely approximates Maurice Merleau-Ponty’s phenomenology of perception, a major framework for my study – has pedagogical precedence in the mimetic pedagogy that informed ancient Sophistic rhetorical training, and I reveal that training’s multimodal dimensions through a phenomenological exegesis of the concept mimesis. Plato’s denigration of the mimetic tradition and his elevation of conceptual contemplation through reason, out of which developed the classic Cartesian separation of mind from body, resulted in a general degradation of experiential knowledge in Western education. But with the recent introduction into college classrooms of digital technologies and multimedia communication tools, renewed emphasis is being placed on the “hands-on” nature of inventive and productive praxis, necessitating a revision of methods of instruction and assessment that have traditionally privileged the acquisition of conceptual over experiential knowledge. The model of multimodality I construct from Merleau-Ponty’s phenomenology, ancient Sophistic rhetorical pedagogy, and current neuroscientific accounts of situated cognition insists on recognizing the significant role knowledges we acquire experientially play in our reading and writing, speaking and listening, discerning and designing practices.
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Com a presente investigação pretendeu-se validar a metodologia de análise retrospetiva de vídeos familiares e explorar potenciais sinais de risco precoce em crianças com SXF(N=6). Utilizando grelhas de observação de comportamentos, analisou-se a atenção social, a atenção partilhada, e o desenvolvimento sensório-motor, nas crianças com SXF, dos 0-30 meses. Validou-se a metodologia de análise de vídeos retrospetivos para a identificação de sinais de risco. Com base no estudo dos sinais de risco, sugere-se que as crianças com SXF têm preferência por estímulos não-sociais (e.g., fixação visual prolongada em objetos), têm dificuldades em dirigir a atenção para estímulos sociais (e.g., chamada e resposta ao nome) e défices na atenção partilhada, e demonstram uma interação prolongada e repetitiva com objetos e as expressões afetivas positivas. Verificou-se também que as crianças com SXF parecem conseguir discriminar entre estímulos sociais e não-sociais (e.g., vocalização para as pessoas) e apresentam estereotipias em todas as idades; Identifying early risk features in children with FXS through home movies Abstract: This research aims to validade the retrospective video analysis methodology of home movies and to explore potential early risk signs in children with FXS (N=6). Recurring to an observational grids of behaviors, social attention, joint attention, social attention and sensorymotor features were analysed, in children with FXS, at 0-30 months. Retrospective video analysis was validated for the identification of early risk signs. The study of early risk signs suggests that infants with FXS prefer non-social stimuli (e.g., visual fixation in objects), have difficulties directing attention toward social stimuli (e.g., name prompts) and impairments in joint attention, prolongued and repetitive interaction with objects, and have positive affective rating. Findings reveal that infants with FXS seem to be able to discriminate from social and non-social stimuli (e.g., vocalizing to people) and presente stereotypies through all ages.
Disorders of arousal: a physiopathological window to explore the mechanisms regulating sleep arousal
Resumo:
Disorders of Arousal (DoA) belong to NREM parasomnias and are characterized by motor and emotional episodes arising from incomplete awakenings from NREM sleep. DoA episodes embody at the same time the double nature of the arousal process, that is preserving sleep as well as respond to sleep perturbations, thus being an ideal model to study sleep arousal. In the first part of this work, we performed a spectral whole scalp EEG analysis exploring the neurophysiologic correlates of the pre-motor onset of the episodes in a large sample of patients with DoA, disclosing the co-existence of both slow and fast EEG frequencies over overlapping areas before DoA episodes, suggesting an alteration of local sleep mechanisms. Episodes of different complexity were preceded by a similar EEG activation, implying that they possibly share a similar pathophysiology. In the second part of this work, we performed a spectral whole scalp EEG analysis comparing the pre-motor onset of the episodes and normal arousals from healthy sleepers, disclosing the persistence of slow frequencies as well as sigma band (expression of sleep spindles) in DoA episodes. Overall, these results might subtend a higher tendence to preserve sleep and a more defective mechanism toward developing a complete arousal in patients with DoA. In the last part of our work, we evaluated 15 patients with DoA with 15 controls in a functional MRI study during wakefulness in addition to a proton magnetic resonance spectroscopy (1H-MRS) focused on cingulate cortex. We disclosed subtle alterations on posterior cingulate cortex as well as an increased connectivity in sensory-motor network, possibly representing a trait-functional feature responsible for the dysfunctional arousal process in DoA patients
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What this paper adds? What is already known on the subject? Multi-sensory treatment approaches have been shown to impact outcome measures positively, such as accuracy of speech movement patterns and speech intelligibility in adults with motor speech disorders, as well as in children with apraxia of speech, autism and cerebral palsy. However, there has been no empirical study using multi-sensory treatment for children with speech sound disorders (SSDs) who demonstrate motor control issues in the jaw and orofacial structures (e.g. jaw sliding, jaw over extension, inadequate lip rounding/retraction and decreased integration of speech movements). What this paper adds? Findings from this study indicate that, for speech production disorders where both the planning and production of spatiotemporal parameters of movement sequences for speech are disrupted, multi-sensory treatment programmes that integrate auditory, visual and tactile–kinesthetic information improve auditory and visual accuracy of speech production. The training (practised in treatment) and test words (not practised in treatment) both demonstrated positive change in most participants, indicating generalization of target features to untrained words. It is inferred that treatment that focuses on integrating multi-sensory information and normalizing parameters of speech movements is an effective method for treating children with SSDs who demonstrate speech motor control issues.