Now showing items 1-18 of 18

    • Canonical maximization of coherence: a novel tool for investigation of neuronal interactions between two datasets 

      Vidaurre, Carmen Upna Orcid; Nolte, Guido; Vries, I. E. J. de; Gómez Fernández, Marisol Upna Orcid; Boonstra, Tjeerd W.; Müller, Klaus Robert; Villringer, Arno; Nikulin, Vadim V. (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      Synchronization between oscillatory signals is considered to be one of the main mechanisms through which neuronal populations interact with each other. It is conventionally studied with mass-bivariate measures utilizing ...
    • Computation of greatest common divisor for the blind deconvolution of transient impulsive signals 

      Lecumberri Villamediana, Pablo Upna; Gómez Fernández, Marisol Upna Orcid; Carlosena García, Alfonso Upna Orcid (Universitat Politècnica de Catalunya, 2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We propose a new blind deconvolution method for transient impulsive signals in a single input – multiple output (SIMO) system. The method exploits the data redundancy inherent to SIMO multichannel systems to obtain an ...
    • Design of low-cost smart accelerometers 

      Carlosena García, Alfonso Upna Orcid; López Martín, Antonio Upna Orcid; Massarotto, Marco Upna; Cruz Blas, Carlos Aristóteles de la Upna Orcid; Lecumberri Villamediana, Pablo Upna; Gómez Fernández, Marisol Upna Orcid; Pintor Borobia, Jesús María Upna Orcid; Gárriz Sanz, Sergio Upna (Universitat Politècnica de Catalunya, 2005)   Artículo / Artikulua  OpenAccess
      The goal of this project is to design a low-cost smart accelerometer, making use of a piezoelectric element as basic sensing material, and adding a mixed-mode conditioning circuit.
    • Enhancing sensorimotor BCI performance with assistive afferent activity: an online evaluation 

      Vidaurre, Carmen Upna Orcid; Ramos Murguialday, Ander; Haufe, Stefan; Gómez Fernández, Marisol Upna Orcid; Müller, Klaus Robert; Nikulin, Vadim V. (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      An important goal in Brain-Computer Interfacing (BCI) is tofind and enhance procedural strategies for users for whom BCI control is not sufficiently accurate. To address this challenge, we conducted offline analyses and ...
    • An evaluation of the 30-s chair stand test in older adults: frailty detection based on kinematic parameters from a single inertial unit 

      Millor Muruzábal, Nora Upna Orcid; Lecumberri Villamediana, Pablo Upna; Gómez Fernández, Marisol Upna Orcid; Martínez Ramírez, Alicia Upna Orcid; Izquierdo Redín, Mikel Upna Orcid (BioMed Central, 2013)   Artículo / Artikulua  OpenAccess
      Background: A growing interest in frailty syndrome exists because it is regarded as a major predictor of co-morbidities and mortality in older populations. Nevertheless, frailty assessment has been controversial, particularly ...
    • A fast SSVEP-based brain-computer interface 

      Jorajuría, Tania Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Vidaurre, Carmen Upna Orcid (Springer, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Literature of brain-computer interfacing (BCI) for steady-state visual evoked potentials (SSVEP) shows that canonical correlation analysis (CCA) is the most used method to extract features. However, it is known that CCA ...
    • Frailty assessment based on the instrumented version on the 30-s chair stand test 

      Millor Muruzábal, Nora Upna Orcid (2015)   Tesis doctoral / Doktoretza tesia  OpenAccess
      El objetivo de esta tesis es mejorar la evaluación de la capacidad funcional usando nuevos parámetros cinemáticos. Así, el personal clínico dispondrá de una serie de medidas objetivas y cuantificables para realizar sus ...
    • Frailty assessment based on trunk kinematic parameters during walking 

      Martínez Ramírez, Alicia Upna Orcid; Martinikorena Aranburu, Ion Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Lecumberri Villamediana, Pablo Upna; Millor Muruzábal, Nora Upna Orcid; Rodríguez Mañas, Leocadio; García García, Francisco José; Izquierdo Redín, Mikel Upna Orcid (BioMed Central, 2015)   Artículo / Artikulua  OpenAccess
      Background: Physical frailty has become the center of attention of basic, clinical and demographic research due to its incidence level and gravity of adverse outcomes with age. Frailty syndrome is estimated to affect 20 % ...
    • Impacto en el personal sanitario de urgencias extrahospitalarias de las cargas elevadas en la movilización de pacientes con silla de transporte 

      Arenal Gota, Tania; Viana Gárriz, Juan Luis; Millor Muruzábal, Nora Upna Orcid; Martínez Ramírez, Alicia Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Belzunegui Otano, Tomás Upna Orcid (Asociación de Especialistas en Enfermería del Trabajo, 2018)   Artículo / Artikulua  OpenAccess
      Introducción. El objetivo del estudio es valorar el esfuerzo físico realizado por el personal de la urgencia extrahospitalaria al trasladar pacientes de su domicilio a la ambulancia. Material y métodos. Estudio observacional ...
    • Improving motor imagery classification during induced motor perturbations 

      Vidaurre, Carmen Upna Orcid; Jorajuría, Tania Upna Orcid; Ramos Murguialday, Ander; Müller, Klaus Robert; Gómez Fernández, Marisol Upna Orcid; Nikulin, Vadim V. (IOP Publishing, 2021)   Artículo / Artikulua  OpenAccess
      Objective. Motor imagery is the mental simulation of movements. It is a common paradigm to design brain-computer interfaces (BCIs) that elicits the modulation of brain oscillatory activity similar to real, passive and ...
    • Initiative to increment the number of women in STEM degrees: women, science and technology chair of the Public University of Navarre 

      Aranguren Garacochea, Patricia Upna Orcid; San Martín Biurrun, Idoia Upna Orcid; Catalán Ros, Leyre Upna Orcid; Martínez Ramírez, Alicia Upna Orcid; Jurío Munárriz, Aránzazu Upna Orcid; Díaz Lucas, Silvia Upna Orcid; Pérez Artieda, Miren Gurutze Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Barrenechea Tartas, Edurne Upna Orcid (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The Public University of Navarre joined with Navarre Government has created the Women, Science and Technology Chair. This chair arises due to the plummeting tendency of the percentage of women in STEM degrees with the aim ...
    • Multichannel blind deconvolution of impulsive signals 

      Lecumberri Villamediana, Pablo Upna; Gómez Fernández, Marisol Upna Orcid; Carlosena García, Alfonso Upna Orcid (2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this communication, the problem of blind deconvolution of transient, impulsive signals in a multichannel environment is addressed. This kind of signals arise naturally, or are used as external excitation, in many ...
    • Optical system based on multiplexed FBGs to monitor hand movements 

      Socorro Leránoz, Abián Bentor Upna Orcid; Díaz Lucas, Silvia Upna Orcid; Castillo, Silvia; Dreyer, Julián José; Martelli, Cicero; Cardozo da Silva, Jean Carlos; Uzqueda Esteban, Itziar Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid (IEEE, 2021)   Artículo / Artikulua  OpenAccess
      This contribution reports the development and characterization of an optical system based on parallel Fiber Bragg Gratings (FBGs) to monitor the movements of the wrist and fingers of a hand. The system consisted of a ...
    • Optimizando desviaciones moderadas ponderadas para interfaces cerebro ordenador 

      Fumanal Idocin, Javier Upna Orcid; Vidaurre, Carmen Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Urío Larrea, Asier; Pereira Dimuro, Graçaliz Upna Orcid; Bustince Sola, Humberto Upna Orcid (Universidad de Málaga, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Las interfaces cerebro-ordenador (BCI) basadas en el análisis de Electroencefalografía (EEG) están compuestas por varios elementos para procesar y clasificar las señales de entrada del cerebro. Una fase relevante de estos ...
    • Oscillatory source tensor discriminant analysis (OSTDA): a regularized tensor pipeline for SSVEP-based BCI systems 

      Jorajuría, Tania Upna Orcid; Jamshidi Idaji, Mina; İşcan, Zafer; Gómez Fernández, Marisol Upna Orcid; Nikulin, Vadim V.; Vidaurre, Carmen Upna Orcid (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      Periodic signals called Steady-State Visual Evoked Potentials (SSVEP) are elicited in the brain by flickering stimuli. They are usually detected by means of regression techniques that need relatively long trial lengths to ...
    • Relevance of sex, age and gait kinematics when predicting fall-risk and mortality in older adults 

      Porta Cuéllar, Sonia Upna Orcid; Martínez Ramírez, Alicia Upna Orcid; Millor Muruzábal, Nora Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Izquierdo Redín, Mikel Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      Approximately one-third of elderly people fall each year with severe consequences, including death. The aim of this study was to identify the most relevant features to be considered to maximize the accuracy of a logistic ...
    • Sources of linear and non-linear synchrony between brain and muscles: linear and non-linear CMC sources 

      Vidaurre, Carmen Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Nolte, Guido; Villringer, Arno; Carlowitz Ghori, Katherina von; Nikulin, Vadim V. (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This manuscript shows that it is possible to find distinct sources of brain activity, at similar frequencies, arising from linear and non-linear interactions of the brain with the muscular system. Those sources were obtained ...
    • Valoración de la capacidad funcional en el ámbito domiciliario y en la clínica. Nuevas posibilidades de aplicación de la acelerometría para la valoración de la marcha, equilibrio y potencia muscular en personas mayores 

      Izquierdo Redín, Mikel Upna Orcid; Martínez Ramírez, Alicia Upna Orcid; Larrión, J. L.; Irujo Espinosa, M.; Gómez Fernández, Marisol Upna Orcid (Gobierno de Navarra, 2008)   Artículo / Artikulua  OpenAccess
      Dentro de cualquier población de individuos mayores de 65 años, una proporción sustancial (entre el 6% y el 25%) sufre diferentes síntomas del síndrome de fragilidad. A pesar de la complejidad del termino fragilidad y de ...