Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-05-08T16:16:15Z No. of bitstreams: 1 CinthiaBeatrizDaFonseca_DISSERT.pdf: 934111 bytes, checksum: df7e61d28053fe7eec3f89202dbdc2c1 (MD5) / Approved for entry into archive by Monica Paiva (monicalpaiva@hotmail.com) on 2017-05-08T16:22:59Z (GMT) No. of bitstreams: 1 CinthiaBeatrizDaFonseca_DISSERT.pdf: 934111 bytes, checksum: df7e61d28053fe7eec3f89202dbdc2c1 (MD5) / Made available in DSpace on 2017-05-08T16:22:59Z (GMT). No. of bitstreams: 1 CinthiaBeatrizDaFonseca_DISSERT.pdf: 934111 bytes, checksum: df7e61d28053fe7eec3f89202dbdc2c1 (MD5) Previous issue date: 2016-02-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Introdu??o: A s?ndrome pr?-menstrual (SPM) ? caracterizada por uma s?rie de sintomas emocionais, f?sicos e fisiol?gicos. Diversas estrat?gias t?m sido utilizadas para minimizar os sintomas causados pela SPM. Uma ferramenta alternativa que tem sendo utilizada para o tratamento de doen?as psicol?gicas ? a respira??o abdominal lenta (RAL), que consiste na diminui??o da taxa respirat?ria a uma velocidade que estimule o barorreflexo. Alguns resultados mostram que essa t?cnica fornece melhora o estresse, ansiedade e humor negativo. Sugerindo que esse m?todo pode ser eficaz para a modula??o de respostas emocionais. Objetivo: Efeito agudo da RAL sobre ansiedade, humor, modula??o auton?mica e atividade cerebral em mulheres com SPM. M?todos: 20 mulheres saud?veis com SPM foram alocadas em dois grupos em uma ordem aleat?ria independente (experimental n= 9 e controle n= 11). O grupo experimental realizou RAL em seis ciclos/minuto e no controle mantiveram sua taxa respirat?ria normal, ambas por 20 minutos. Antes e depois da RAL ou controle foram avaliadas estado de ansiedade, humor, variabilidade da frequ?ncia card?aca (VFC) e eletroencefalografia (EEG) em repouso. Os dados do EEG foram analisados pelo programa sLORETA para localiza??o das regi?es cerebrais as quais sofreram mudan?a. Resultados: A an?lise de covari?ncia evidenciou que n?o houve efeito na ansiedade nem no humor (P>0,05). A ANOVA de dois fatores mista mostrou que houve apenas modifica??es nos ?ndices de VFC, ocorridos durante a RAL com uma diminui??o do HF (P<0,001) e aumento do LF/HF (P<0,000). Al?m disso, o sLORETA n?o evidenciou mudan?as na atividade cerebral. Conclus?o: A RAL n?o melhora ansiedade, humor, sistema nervoso aut?nomo card?aco e atividade cerebral em mulheres com SPM. / Introdu??o: A s?ndrome pr?-menstrual (SPM) ? caracterizada por uma s?rie de sintomas emocionais, f?sicos e fisiol?gicos. Diversas estrat?gias t?m sido utilizadas para minimizar os sintomas causados pela SPM. Uma ferramenta alternativa que tem sendo utilizada para o tratamento de doen?as psicol?gicas ? a respira??o abdominal lenta (RAL), que consiste na diminui??o da taxa respirat?ria a uma velocidade que estimule o barorreflexo. Alguns resultados mostram que essa t?cnica fornece melhora o estresse, ansiedade e humor negativo. Sugerindo que esse m?todo pode ser eficaz para a modula??o de respostas emocionais. Objetivo: Efeito agudo da RAL sobre ansiedade, humor, modula??o auton?mica e atividade cerebral em mulheres com SPM. M?todos: 20 mulheres saud?veis com SPM foram alocadas em dois grupos em uma ordem aleat?ria independente (experimental n= 9 e controle n= 11). O grupo experimental realizou RAL em seis ciclos/minuto e no controle mantiveram sua taxa respirat?ria normal, ambas por 20 minutos. Antes e depois da RAL ou controle foram avaliadas estado de ansiedade, humor, variabilidade da frequ?ncia card?aca (VFC) e eletroencefalografia (EEG) em repouso. Os dados do EEG foram analisados pelo programa sLORETA para localiza??o das regi?es cerebrais as quais sofreram mudan?a. Resultados: A an?lise de covari?ncia evidenciou que n?o houve efeito na ansiedade nem no humor (P>0,05). A ANOVA de dois fatores mista mostrou que houve apenas modifica??es nos ?ndices de VFC, ocorridos durante a RAL com uma diminui??o do HF (P<0,001) e aumento do LF/HF (P<0,000). Al?m disso, o sLORETA n?o evidenciou mudan?as na atividade cerebral. Conclus?o: A RAL n?o melhora ansiedade, humor, sistema nervoso aut?nomo card?aco e atividade cerebral em mulheres com SPM.

abstract: This study used exploratory data analysis (EDA) to examine the use of a biofeedback intervention in the treatment of anxiety for college students diagnosed with an Autism Spectrum Disorder (ASD) (n=10) and in a typical college population (n=37). The use of EDA allowed for trends to emerge from the data and provided a foundation for future research in the areas of biofeedback and accommodations for college students with ASD. Comparing the first five weeks of the study with the second five weeks of the 10 week study, both groups showed improvement in their control of heart rate variability, a physiological marker for anxiety used in biofeedback. The ASD group showed greater gains, more consistent gains, and less variability in raw scores than the typical group. EDA also revealed a pattern between participant attrition and a participant's biofeedback progress. Implications are discussed. / Dissertation/Thesis / Ph.D. Curriculum and Instruction 2013

This study investigated the role of reinforcement schedule and instructional set in frontalis EMG training. The experiment consisted of four groups participating in 30 minute sessions on three consecutive days. Group conditions were intermittent feedback (alternating 100 second trials), continuous feedback, motivated control and no-treatment control. Excepting the no-treatment controls, each subject was instructed that extra credit points were available contingent on the number of seconds in criterion. An individual criterion based on each subject's initial baseline microvolt level was utilized.

This investigation was concerned with the effects of electromyographic biofeedback on the muscular tension of patients diagnosed in a particular personality state. These personality traits were manic, agitated, depressed, and a comparison group.

The news has become a central part of daily culture in the United States and provides up to date information regarding a vast array of topics from weather to war. A specific aspect of the news, emergency 911 tapes, and their influence on viewers' physiological and psychological health was investigated. Research regarding the relationship between physiological arousal and exposure to brief traumatic stimuli, as well as research addressing the development of pathological psychiatric symptoms are discussed in the literature review. This study examined the relationship between exposure to 911 emergency tapes, physiological arousal, and symptoms of psychopathology while considering the influence of trait personality characteristics and state mood. Results identified significant differences in physiological response to the 911 emergency condition compared to news reports. No significant differences were identified between mood state and arousal except in the instance of respiration rate and negative mood; those with higher scores on negative mood displayed higher levels of respiration. Personality factors and empathy were examined for their predictive value on level of arousal, and yielded insignificant results. Finally, baseline level of PTSD was not significantly correlated with arousal in the 911 condition, except in terms of respiration rate. Future research is required to better understand the arousal as a result of exposure to such media, and the associated psychological and physiological health implications.

Tongue-computer interfaces allow people with upper limb disability to control a computer with their tongue. A number of assistive devices, that make use of this technology, have been developed in the last two decades: some employ contact impedance, membrane switches, or miniature joysticks, while others use magnetic or piezoelectric sensors. This thesis proposes a new tongue-computer interface, which was designed to enable users to manipulate a computer pointer by moving the tip of their tongue over an intraoral electrode array. The system maps the contact between the tongue and the electrodes, detects the movements of the tongue, and translates it into pointer movements. Compared to similar devices, the MouthPad does not require any head gear or sensors, and does not employ heavy signal processing. The hardware is simplified by using a small number of electrodes and only one output channel, multiplexed over the electrode array. A low power footprint allows the potential miniaturization of the system, so that it could fit on palatal retainer, and allow for permanent unobtrusive usage. The performance of the device was evaluated by measuring the throughput and the accuracy as defined in ISO 9241-9 standard. Two extra measures proposed in the literature, target re-entry and movement offset, were used for the evaluation of the accuracy. The measured throughput values were situated between 78% and 88% of the throughput rates of regular computer joysticks.

Orientador: Juvenal Ricardo Navarro Goes / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas / Made available in DSpace on 2018-08-04T01:14:01Z (GMT). No. of bitstreams: 1 Mergulhao_MelissaEichenbergerAlves_M.pdf: 6053409 bytes, checksum: f6f4ceb9229c4e46eb9fa5a3d2b24f1d (MD5) Previous issue date: 2004 / Resumo: defecação é função privada e sua ocorrência, num momento ou local Índesejável, pode ser constrangedora, ocasionando uma condição de alienação social. A ÍncontÍnência fecal apresenta baixa morbidade; pode estar associada à depressão, ao pessimismo e à dimÍnuição da auto-estima, levando à limitação das atividades da vida diária. Dentre as várias causas da ÍncontÍnência fecaI, a multiparidade e o parto vaginal são considerados fatores de risco significativos. Como opções de tratamento conservador para a ÍncontÍnência fecal tem-se a cÍnesioterapia clássica, o biofeedback e a eletroestimulação, dos quais espera-se aumento do tônus da musculatura esfincteriana e conscientização sensório-motora, permitÍndo ao paciente maior controle sobre sua defecação. o objetivo deste estudo foi comprovar a eficácia da eletroestimulação neuromuscular em pacientes multíparas com ÍncontÍnência fecaI, em estudo comparativo com o tratamento pelo biofeedback isolado ou deste associado à eletroestimulação. Foram estudadas 25 doentes multíparas portadoras de ÍncontÍnência fecaI, e estas foram divididas, mediante sorteio, em três grupos: oito doentes foram submetidas à eletroestimulação; oito, foram tratadas com o emprego da eletroestimulação com biofeedback e nove foram submetidas ao biofeedback. As doentes foram avaliadas pelos seguÍntes parâmetros: manometria anorretal, escore do índice funcionaI clínico de ÍncontÍnência fecaI e questionário de qualidade de vida e tempo de urgência de evacuação, perda de fezes durante o repouso, durante atividades da vida diária, perda de fezes andando, durante esforço leve, moderado, Íntenso e perda de fezes sem perceber, pré e póstratamento. Foi considerada também a estimativa de melhora e o grau de satisfação com o tratamento. O estUdofoi prospectivo e randomizado. A análise dos dados demonstrou diferença estatisticamente significativa entre o pré e pós-tratamento, Índependentemente do grupo estudado, nas variáveis referentes à área sob o traçado da contração voluntária, escore do índice funcional da ÍncontÍnência fecaI, ao escore da qualidade de vida, tempo de urgência de evacuação, perda de fezes durante repouso,duranteatividadesda vidadiária,perdade fezesandando,perdade fezesduranteo esforço moderado e perda de fezes sem perceber. Houve correlação estatisticamente significativa entre o pré e pós-tratamento no grupo de biofeedback, quando se comparou o valor da pressão anal média da contração voluntária máxima. Já a pressão anal média de repouso, a capacidade de sustentação e a perda de fezes durante esforço intenso não apresentaram nenhuma diferença com significância estatística. Os resultados obtidos neste estudo permitem concluir que a eletroestimulação é eficaz no tratamento da incontinência fecal em doentes multíparas, quando aplicada isoladamente ou em associação com tratamento pelo biofeedback. Estatisticamente não foi constatada superioridade entre os métodos / Abstract: Defecation is a private function and its occurrence at an undesirable moment or place can be embarrassing and lead to a condition of social alienation. Although fecal incontinence does not present a high mortality rate, it causes social and moral perturbations which are difficult to solve. It is an embarrassing condition with important socioeconomic repercussions. It can be associated with depression, pessimism and a drop in the patient self-esteem, leading to restrictions in day-to-day activities. Among the several causes of fecal incontinence, multiparity and vaginal delivery has been implicated as a significant causal factor. Options for the conservative treatment of fecaI incontinence include classical cinesiotherapy, biofeedback and electrostimulation ITomwhich the increase ofthe sphincter muscle tonus as well as of sensorial awareness are expected, resulting in a better defecation control. The aims ofthis study were to prove the efficiency ofneuromuscular electrostimulation in patients with fecal incontinence in comparison with patients treated by biofeedback and patients treated with electrostimulation plus biofeedback. In order to get a homogeneous group, twenty-five females and muhiparas patients sufIering ITom fecal incontinence were allocated to three groups to be submitted to treatment; 8 patients underwent electrostimulation, 8 patients underwent electrostimulation plus biofeedback and 9 patients were submitted to biofeedback alone. The patients were evaluated by anorectal manometry, by a clinical functional index of fecal incontinence, by a questionnaire about their quality of life, time of evacuation urge, loss of feces during rest hours, daily activities , walking, during light, moderate or intense efIort as well as loss of feces without noticing pre- and post-treatment. The patient's evaluation of their improvement and satisfaction degree has also been analyzed. This study was prospective and randomized. The Analysis of the data demonstrated statistically significant difIerences independent of the group assessed between the pre- and post-treatment scores of functional index of fecal incontinence, the quality of life assessments, the area under graphic traces of voluntary squeeze and the times of urgency of evacuation, loss of feces during rest hours, daily actives, waIking, during light or moderate or effort as well as 10ss of feces with out noticing. There was a statistically significant correlation between the pre- and post-treatment in the biofeedback group when comparing the mean anal pressure of maximum voluntary squeeze. However, the mean resting anal pressure and the capacity of sustentation and the 10ss of feces during intense effort did not present any significant difference. The results obtained in the present study enabled us to conclude that electrostimulation is as . etlicacious as biofeedback in the treatment of fecal incontinence, without giving a statistically significant difference between the two methods / Mestrado / Pesquisa Experimental / Mestre em Cirurgia

This study investigated the use of electromyographic feedback in regulating the frequency of part-word repetitions. Two adult stutterers, one female (Subject A) and one male (Subject B) were employed. The frequency of part-word repetitions during baserate, EMG uV raising, and EMG uV lowering conditions was assessed for Subject B. As hypothesized, results indicate that there was a notable decline in the frequency of part-word repetitions during the EMG uV lowering sessions. However, contrary to the second hypothesis, (i.e. that an increase in EMG uV would correspond with an increase in part-word repetitions) there was also a decline in the frequency of part-word repetitions during the EMG raising sessions.

Tato práce je shrnutím existujících přístupů pro zpracování EEG signálu za účelem EEG biofeedbacku a dále popisuje návrh a implementaci vlastní aplikace pro EEG biofeedback se zaměřením na trénink pozornosti. Dále obsahuje případovou studii provedenou na neurotypickém studentovi a studentovi s ADHD, která zkoumá vliv implementované aplikace na měřený EEG signál subjektů.

Swedish football is something that develops continuously every year and with the help of various tools within the sport, the sport also gets better based on the quality of the football field. Swedish football teams are getting further out in Europe and playing European championships in both the Champions League and the Europa League. There are small points that are addressed in this study and that is how tools such as biofeedback systems can help players in Swedish football clubs to develop in order for Swedish football standers to be raised and thus make Swedish football become remarkable. In this study, 10 people who work in football are interviewed as either leaders or players from two different clubs, a team where biofeedback systems are used and a team where they use the traditional method of analysis. This distinguishes the clubs because the possibility of better insight into why a system benefits players and the team more should be shown more clearly. They got interview questions they had to answer from their own perspective and how they see it all in biofeedback systems and IT in football and how it has affected football. The football clubs that the respondents come from are BK Häcken and Utsikten BK.