ICe - Artigos publicados em periódicos
URI Permanente para esta coleçãohttps://repositorio.ufrn.br/handle/1/6192
Repositório da produção científica do Instituto do Cérebro - ICe, da UFRN, Unidade Acadêmica Especializada em neurociências.
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Navegando ICe - Artigos publicados em periódicos por Autor "Albuquerque, Victor Hugo C. de"
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Artigo Machine Learning Algorithmsfor Automatic Classification of Marmoset Vocalizations(2016-09) Turesson, Hjalmar K.; Ribeiro, Sidarta Tollendal Gomes; Pereira, Danillo R.; Papa, João P.; Albuquerque, Victor Hugo C. deAutomatic classification of vocalization type could potentially become a useful tool for acoustic the monitoring of captive colonies of highly vocal primates. However, for classification to be useful in practice, a reliable algorithm that can be successfully trained on small datasets is necessary. In this work, we consider seven different classification algorithms with the goal of finding a robust classifier that can be successfully trained on small datasets. We found good classification performance (accuracy > 0.83 and F1-score > 0.84) using the Optimum Path Forest classifier. Dataset and algorithms are made publicly available.Artigo Novel Virtual Environment for Alternative Treatment of Children with Cerebral Palsy(2016-05-23) Oliveira, Juliana M. de; Fernandes, Rafael Carneiro G.; Pinto, Cristtiano S.; Pinheiro, Plácido R.; Ribeiro, Sidarta Tollendal Gomes; Albuquerque, Victor Hugo C. deCerebral palsy is a severe condition usually caused by decreased brain oxygenation during pregnancy, at birth or soon after birth. Conventional treatments for cerebral palsy are often tiresome and expensive, leading patients to quit treatment. In this paper, we describe a virtual environment for patients to engage in a playful therapeutic game for neuropsychomotor rehabilitation, based on the experience of the occupational therapy program of the Nucleus for Integrated Medical Assistance (NAMI) at the University of Fortaleza, Brazil. Integration between patient and virtual environment occurs through the hand motion sensor “Leap Motion,” plus the electroencephalographic sensor “MindWave,” responsible for measuring attention levels during task execution. To evaluate the virtual environment, eight clinical experts on cerebral palsy were subjected to a questionnaire regarding the potential of the experimental virtual environment to promote cognitive and motor rehabilitation, as well as the potential of the treatment to enhance risks and/or negatively influence the patient’s development. Based on the very positive appraisal of the experts, we propose that the experimental virtual environment is a promising alternative tool for the rehabilitation of children with cerebral palsy.Artigo REHAB FUN: an assistive technology in neurological motor disorders rehabilitation of children with cerebral palsy(2019-03-08) Oliveira, Juliana M. de; Munoz, Roberto; Ribeiro, Sidarta Tollendal Gomes; Wu, Wanqing; Albuquerque, Victor Hugo C. deCerebral palsy is a childhood condition in which there is a motor disability (palsy) caused by a static, non-progressive lesion in the brain (cerebral), produced by decreased brain oxygenation during pregnancy at birth or soon after birth. The rehabilitation of patients with disabilities such as cerebral palsy is usually accomplished through exercises performed by a team of several specialists so that the patient can act independently or minimize the need for third parties. The virtual reality environment called REHAB FUN was developed as a purpose to aid in the treatment of patients with cerebral palsy from 3 to 8 years. The REHAB FUN is composed of 10 phases (activities) and a web area for analysis of the specialists to follow the evolution of the patients. Seven patients were participated using the virtual environment twice a week for 3 months (20 sessions). We measured attention levels, errors, and time. The REHAB FUN has been shown to be a motivating tool for patients, and through the data acquired, the specialists can direct the treatment in an individualized way so that there are greater effectiveness and efficiency in the treatment of motor rehabilitation.