Ara es mostren els items 35-47 de 47

    • Neurophysiological evidence of compensatory brain mechanisms in early-stage multiple sclerosis 

      Lopez Gongora, Mariana; Escartín, José Antonio; Martinez Horta, Saul; Fernandez De Bobadilla, Ramon; Querol, Luis; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel; Riba Serrano, Jordi (2015-08-31)
      Article
      Accés obert
      Multiple sclerosis (MS) is a chronic central nervous system disorder characterized by white matter inflammation, demyelination and neurodegeneration. Although cognitive dysfunction is a common manifestation, it may go ...
    • Obstructive sleep apnea severity affects amyloid burden in cognitively normal elderly a longitudinal study 

      Sharma, Ram A.; Varga, Andrew W.; Bubu, Omonigho M.; Romero Lafuente, Sergio (2018-04-01)
      Article
      Accés obert
      Recent evidence suggests that Obstructive Sleep Apnea (OSA) may be a risk factor for developing Mild Cognitive Impairment and Alzheimer’s disease. However, how sleep apnea affects longitudinal risk for Alzheimer’s disease ...
    • Ocular Reduction in EEG Signals Based on Adaptive Filtering, Regression and Blind Source Separation 

      Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel; Barbanoj, Manel J. (2009-01)
      Article
      Accés obert
      Quantitative electroencephalographic (EEG) analysis is very useful for diagnosing dysfunctional neural states and for evaluating drug effects on the brain, among others. However, the bidirectional contamination between ...
    • Predicting COVID-19 hospital stays with Kolmogorov-Gabor polynomials: charting the future of care 

      Marateb, Hamid Reza; Norouzirad, Mina; Tavakolian, Kouhyar; Aminorroaya, Faezeh; Mohebbian, Mohammad Reza; Mañanas Villanueva, Miguel Ángel; Romero Lafuente, Sergio; Samí, Ramin; Mansourian Gharakozlou, Marjan (Multidisciplinary Digital Publishing Institute (MDPI), 2023-10-31)
      Article
      Accés obert
      Optimal allocation of ward beds is crucial given the respiratory nature of COVID-19, which necessitates urgent hospitalization for certain patients. Several governments have leveraged technology to mitigate the pandemic’s ...
    • Prevalence of sleep disorders in adults with down syndrome: A comparative study of self-reported, actigraphic, and polysomnographic findings 

      Giménez Badia, Sandra; Videla, Laura; Romero Lafuente, Sergio; Benejam, Bessy (2018-10-15)
      Article
      Accés obert
      Study Objectives: Sleep problems are often undetected in adults with Down syndrome (DS). Our objective was to determine the prevalence of sleep disorders in adults with DS through self-reported and objective sleep ...
    • Psychiatric disorders and cognitive impairment following COVID-19: a comprehensive review and its implications for smart healthcare design 

      Azimi, Tayebe; Koochekian, Amirhossein; Marateb, Hamid Reza; Shirzadi, Mehdi; Rojas Martínez, Mónica Marlene; Alonso López, Joan Francesc; Bachiller Matarranz, Alejandro; Mansourian Gharakozlou, Marjan; Rubio Rivas, Manuel; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel (Institute of Physics (IOP), 2022-12)
      Capítol de llibre
      Accés restringit per política de l'editorial
      Chapter 3 discusses the role of sensors in cases of moderate COVID-19 infection that may be linked to cognitive impairments; such prediction systems are promising for smart healthcare design.
    • Reducción de artefactos en señales electroencefalográficas mediante nuevas técnicas de filtrado automático basadas en separación ciega de fuentes. 

      Romero Lafuente, Sergio (Universitat Politècnica de Catalunya, 2010-06-21)
      Tesi
      Accés obert
      El análisis cuantitativo y la interpretación de las señales electroencefalográficas (EEG) permiten la comprensión de la función cerebral, ayudando al diagnóstico de estados disfuncionales. Sin embargo, es conocido que ...
    • Reduction of metallic interference in MEG signals using AMUSE 

      Migliorelli Falcone, Carolina Mercedes; Romero Lafuente, Sergio; Alonso López, Joan Francesc; Nowak, Rafal; Russi Tintoré, Antonio; Mañanas Villanueva, Miguel Ángel (2013)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Magnetoencephalography is a technique that can noninvasively measure the brain signal. There are many advantages of using this technique rather than similar procedures such as the EEG for the evaluation of medical diseases. ...
    • Serotonergic psychedelics temporarily modify information transfer in humans 

      Alonso López, Joan Francesc; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel; Riba Serrano, Jordi (2015-06-01)
      Article
      Accés obert
      Background: Psychedelics induce intense modifications in the sensorium, the sense of "self," and the experience of reality. Despite advances in our understanding of the molecular and cellular level mechanisms of these ...
    • SGM: a novel time-frequency algorithm based on unsupervised learning improves high-frequency oscillation detection in epilepsy 

      Migliorelli Falcone, Carolina Mercedes; Bachiller Matarranz, Alejandro; Alonso López, Joan Francesc; Romero Lafuente, Sergio; Aparicio, Javier; Jacobs-Le Van, Julia; Mañanas Villanueva, Miguel Ángel; San Antonio-Arce, Victoria (2020-04-22)
      Article
      Accés obert
      Objective. We propose a novel automated method called the S-Transform Gaussian Mixture detection algorithm (SGM) to detect high-frequency oscillations (HFO) combining the strengths of different families of previously ...
    • Stress assessment based on EEG univariate features and functional connectivity measures 

      Alonso López, Joan Francesc; Romero Lafuente, Sergio; Ballester Verneda, Maria Rosa; Antonijoan Arbós, Rosa Maria; Mañanas Villanueva, Miguel Ángel (Institute of Physics (IOP), 2015-05-27)
      Article
      Accés obert
      The biological response to stress originates in the brain but involves different biochemical and physiological effects. Many common clinical methods to assess stress are based on the presence of specific hormones and on ...
    • The kappa opioid receptor and the sleep of reason: cortico-subcortical Imbalance following Salvinorin-A 

      Ona, Genis; Sampedro, Frederic; Romero Lafuente, Sergio; Valle, Marta; Camacho, Valle; Migliorelli Falcone, Carolina Mercedes; Mañanas Villanueva, Miguel Ángel; Antonijoan Arbós, Rosa Maria; Puntes, Montserrat; Coimbra, Jimena; Ballester Verneda, Maria Rosa; Garrido, Maite; Riba Serrano, Jordi (Oxford University Press, 2022-01-12)
      Article
      Accés obert
      Background: The mechanisms through which kappa opioid receptor (KOR) agonists induce psychotomimetic effects are largely unknown, although the modulation of this receptor has attracted attention for its clinical use. In ...
    • Topography of activation deficits in schizophrenia during P300 task related to cognition and structural connectivity 

      Molina Rodriguez, Vicente; Bachiller Matarranz, Alejandro; Luis García, Rodrigo de; Lubeiro Juárez, Alba; Poza Crespo, Jesús; Hornero Sánchez, Roberto; Alonso López, Joan Francesc; Mañanas Villanueva, Miguel Ángel; Marques, Patricia; Romero Lafuente, Sergio (2018-02-02)
      Article
      Accés obert
      Background The study of cerebral underpinnings of schizophrenia may benefit from the high temporal resolution of electromagnetic techniques, but its spatial resolution is low. However, source imaging approaches such as ...