Examinando por Materia "ESTIMULACIÓN ELÉCTRICA"

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    PublicaciónAcceso abierto
    Los campos bioeléctricos y algunas aplicaciones médicas– Revisión
    (2014-04-30) Moncada-Acevedo, M. E. (María Elena); Cruz-Saavedra, J. A. (Jorge Armando de la); Pinedo-Jaramillo, C. R. (Carlos Rafael)
    The era of bioelectricity began with the investigations of Emil Du Bois-Reymond, one of the founders of electrophysiology. DuBois documented in detail electrical activities associated with nerve excitation, muscle contraction and healing processes. It is currently recognized that electric fields (EFs) are present in living organisms and that they direct and influence biological processes such as embryogenesis, regeneration and wound healing. Several studies have shown how EFs interfere with biosynthesis and cell migration, leading to new strategies for repairing ligaments and for tissue regeneration. At present, biological EFs and currents provide information needed for different types of diagnoses and treatments. This paper reviews some studies focused on the generation of endogenous bioelectric fields, their biological substrates and medical applications.
  • Miniatura
    PublicaciónAcceso abierto
    Interfaces neuronales y sistemas máquina-cerebro: fundamentos y aplicaciones. Revisión
    (2014-04-19) García-Quiroz, F. (Felipe); Villa-Moreno, A. (Adriana); Castaño-Jaramillo, P. (Paula)
    Abstract—During the past ten years the Neural Interfaces and brain-computer communication systems area has become an important field for research, in part due to the increasing statistics of motor and sensorial disabilities. The development of these systems and interfaces requires the coordinated work of different areas such as physiology, materials science, instrumentation and signal processing, computational intelligence, mechanics, electronics, robotics, and informatics, among others. They allowed the right integration between the nervous system physiology, the construction of biocompatible electrodes, the acquiring of proper signals for processing, the classification and identification of coded patterns and the design of the actuators elements to finally achieve the goal of the interface. In this review the three basic stages of neural interfaces are shown. This includes: signal acquiring, signal processing and the wide variety of applications with the effectors systems.