Now showing items 1-20 of 31

    • A view-based decision mechanism for rewards in the primate amygdala 

      Grabenhorst, Fabian; Ponce Álvarez, Adrián Fernando; Battaglia-Mayer, Alexandra; Deco, Gustavo; Schultz, Wolfram (2023-12-06)
      Article
      Open Access
      Primates make decisions visually by shifting their view from one object to the next, comparing values between objects, and choosing the best reward, even before acting. Here, we show that when monkeys make value-guided ...
    • Aplicaciones de Kinect para neurohabilitación 

      De la Fuente Garrido, David (Universitat Politècnica de Catalunya, 2012-05-31)
      Bachelor thesis
      Open Access
      Kinect para Xbox 360, o simplemente Kinect es un dispositivo controlador para videojuegos desarrollado por Microsoft para la videoconsola Xbox 360, y desde junio del 2011 para PC con sistema operativo Windows 7 o Windows ...
    • Cognitive research application for Huntington's disease 

      Pedreros Almeciga, Laura Daniela (Universitat Politècnica de Catalunya, 2022-04-29)
      Master thesis
      Open Access
      Huntington's disease is an inherited neurodegenerative disorder caused by the gradual degeneration of parts of the basal ganglia called the caudate nucleus and putamen, which are responsible for the facilitation and ...
    • Cortical state transitions and stimulus response evolve along stiff and sloppy parameter dimensions, respectively 

      Ponce Álvarez, Adrián Fernando; Mochol, Gabriela; Hermoso-Mendizabal, Ainhoa; de la Rocha, Jaime; Deco, Gustavo (2020-03-17)
      Article
      Open Access
      Previous research showed that spontaneous neuronal activity presents sloppiness: the collective behavior is strongly determined by a small number of parameter combinations, defined as ‘stiff’ dimensions, while it is ...
    • Critical scaling of whole-brain resting-state dynamics 

      Ponce Álvarez, Adrián Fernando; Kringelbach, Morten L.; Deco, Gustavo (Springer Nature, 2023-06-10)
      Article
      Open Access
      Scale invariance is a characteristic of neural activity. How this property emerges from neural interactions remains a fundamental question. Here, we studied the relation between scale-invariant brain dynamics and structural ...
    • Cuantificación de Errores de Posicionado de electrodos electroencefalográficos 

      Pàmies Vilà, Rosa; Fabregat Sanjuan, Albert; Ros Alsina, Aina; Pascual Rubio, Vicenç (2022)
      Conference report
      Restricted access - publisher's policy
      Los intercambios bioquímicos entre las neuronas del cerebro producen una pequeña actividad eléctrica detectable con la colocación de electrodos en el cuero cabelludo. En los últimos años están apareciendo técnicas de ...
    • Dissecting estimation of conductances in subthreshold regimes 

      Vich, Catalina; Guillamon Grabolosa, Antoni (2015-12-01)
      Article
      Open Access
      We study the influence of subthreshold activity in the estimation of synaptic conductances. It is known that differences between actual conductances and the estimated ones using linear regression methods can be huge in ...
    • Estimation of directed effective connectivity from fMRI functional connectivity hints at asymmetries of cortical connectome 

      Gilson, Matthieu; Moreno-Bote, Rubén; Ponce Álvarez, Adrián Fernando; Ritter, Petra; Deco, Gustavo (Public Library of Science (PLOS), 2016-03-16)
      Article
      Open Access
      The brain exhibits complex spatio-temporal patterns of activity. This phenomenon is governed by an interplay between the internal neural dynamics of cortical areas and their connectivity. Uncovering this complex relationship ...
    • Eye tracking technology for diagnosis of neurological disorders 

      Goset Maldonado, Joan (Universitat Politècnica de Catalunya, 2022-06-16)
      Master thesis
      Restricted access - confidentiality agreement
    • Functional network antagonism and consciousness 

      Demertzi, Athena; Kucyi, Aaron; Ponce Álvarez, Adrián Fernando; Keliris, Georgios; Susan Whitfield-Gabrieli, Susan; Deco, Gustavo (The MIT Press. Massachusetts Institute of Technology, 2022-10-01)
      Article
      Open Access
      Spontaneous brain activity changes across states of consciousness. A particular consciousness-mediated configuration is the anticorrelations between the default mode network and other brain regions. What this antagonistic ...
    • Increased sensitivity to strong perturbations in a whole-brain model of LSD 

      Jobst, Beatrice M.; Atasoy, Selen; Ponce Álvarez, Adrián Fernando; Sanjuan, Ana; Roseman, Leor; Kaelen, Mendel; Carhart-Harris, Robin; Kringelbach, Morten L.; Deco, Gustavo (2021-04-15)
      Article
      Open Access
      Lysergic acid diethylamide (LSD) is a potent psychedelic drug, which has seen a revival in clinical and pharmacological research within recent years. Human neuroimaging studies have shown fundamental changes in brain-wide ...
    • Increased stability and breakdown of brain effective connectivity during slow-wave sleep: mechanistic insights from whole-brain computational modelling 

      Jobst, Beatrice M.; Hindriks, Rikkert; Laufs, Helmut; Tagliazucchi, Enzo; Hahn, Gerald; Ponce Álvarez, Adrián Fernando; Stevner, Angus B.A.; Kringelbach, Morten L.; Deco, Gustavo (Springer Nature, 2017-07-05)
      Article
      Open Access
      Recent research has found that the human sleep cycle is characterised by changes in spatiotemporal patterns of brain activity. Yet, we are still missing a mechanistic explanation of the local neuronal dynamics underlying ...
    • Influence of the number of trials on evoked motor cortical activity in EEG recordings 

      Borràs Argemí, Marta; Romero Lafuente, Sergio; Alonso López, Joan Francesc; Bachiller Matarranz, Alejandro; Serna Higuita, Leidy Yanet; Migliorelli Falcone, Carolina Mercedes; Mañanas Villanueva, Miguel Ángel (2022-08-26)
      Article
      Open Access
      Objective. Improvements in electroencephalography enable the study of the localization of active brain regions during motor tasks. Movement-related cortical potentials (MRCPs), and event-related desynchronization (ERD) and ...
    • Loss of consciousness reduces the stability of brain hubs and the heterogeneity of brain dynamics 

      López-González, Ane; Panda, Rajanikant; Ponce Álvarez, Adrián Fernando; Zamora-López, Gorka; Escrichs, Anira; Martial, Charlotte; Thibaut, Aurore; Gosseries, Olivia; Kringelbach, Morten L.; Annen, Jitka; Laureys, Steven; Deco, Gustavo (Springer Nature, 2021-09-06)
      Article
      Open Access
      Low-level states of consciousness are characterized by disruptions of brain activity that sustain arousal and awareness. Yet, how structural, dynamical, local and network brain properties interplay in the different levels ...
    • LSD-induced increase of Ising temperature and algorithmic complexity of brain dynamics 

      Ruffini, Giulio; Damiani, Giada; Lozano-Soldevilla, Diego; Deco, Nikolas; Rosas, Fernando E.; Kiani, Narsis A.; Ponce Álvarez, Adrián Fernando; Kringelbach, Morten L.; Carhart-Harris, Robin; Deco, Gustavo (Public Library of Science (PLOS), 2023-02-03)
      Article
      Open Access
      A topic of growing interest in computational neuroscience is the discovery of fundamental principles underlying global dynamics and the self-organization of the brain. In particular, the notion that the brain operates near ...
    • Methods in brain connectivity. Inference through multivariate time series analysis / Koichi Sameshima, Luiz Antonio Baccalá. Frontiers in neuroengineering. Boca Raton, FL, USA: CRC Press, Taylor & Francis Group [ISBN 978-1-43984-5721] 

      Melia, Umberto Sergio Pio; Vallverdú Ferrer, Montserrat (2015-05-29)
      Article
      Open Access
      This book makes an enjoyable reading for those that use some form of brain connectivity for their clinical or research work, but also this book may be very helpful for researchers interested in starting work in the field ...
    • NeAT: a nonlinear analysis toolbox for neuroimaging 

      Casamitjana Díaz, Adrià; Vilaplana Besler, Verónica; Puch Giner, Santi; Aduriz Saiz, Asier; Operto, Grégory; Cacciaglia, Raffaele; Falcón, Carlos; Molinuevo, José Luis; Gispert, Juan Domingo; López Molina, Carlos Alejandro (2020-03-25)
      Article
      Open Access
      NeAT is a modular, flexible and user-friendly neuroimaging analysis toolbox for modeling linear and nonlinear effects overcoming the limitations of the standard neuroimaging methods which are solely based on linear models. ...
    • On the application of short-term heart rate variability indices to track changes in cognitive arousal 

      Mohammadpoor Faskhodi, Mahtab; García González, Miguel Ángel (SciTePress, 2023)
      Conference lecture
      Open Access
      Studies have demonstrated that Heart Rate Variability (HRV) can be utilized as an effective tool for monitoring the level of arousal. The autonomic nervous system (ANS) is frequently measured by heart rate and principally ...
    • One ring to rule them all: the unifying role of prefrontal cortex in steering task-related brain dynamics 

      Deco, Gustavo; Sanz Perl, Yonatan; Ponce Álvarez, Adrián Fernando; Tagliazucchi, Enzo; Whybrow, Peter C; Fuster, Joaquín; Kringelbach, Morten L. (2023-08)
      Article
      Open Access
      Surviving and thriving in a complex world require intricate balancing of higher order brain functions with essential survival-related behaviours. Exactly how this is achieved is not fully understood but a large body of ...
    • Phase-Coherence Transitions and Communication in the Gamma Range between Delay-Coupled Neuronal Populations 

      Barardi, Alessandro; Sancristóbal Alonso, Belén de; García Ojalvo, Jordi (2014-07-01)
      Article
      Open Access
      Synchronization between neuronal populations plays an important role in information transmission between brain areas. In particular, collective oscillations emerging from the synchronized activity of thousands of neurons ...