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Listar por autor "Ardid Ramírez, Joan Salvador"

Mostrando ítems 1-20 de 37

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A computational psychiatry approach identifies how alpha-2A noradrenergic agonist Guanfacine affects feature-based reinforcement learning in the macaque

Hassani, S. A.; Oemisch, M.; Balcarras, M.; Westendorff, S.; Ardid-Ramírez, Joan Salvador; van der Meer, M. A.; Tiesinga, P.; Womelsdorf, T. (Nature Publishing Group, 2017-01-16)

[EN] Noradrenaline is believed to support cognitive flexibility through the alpha 2A noradrenergic receptor (a2A-NAR) acting in prefrontal cortex. Enhanced flexibility has been inferred from improved working memory with ...
A tweaking principle for executive control: neuronal circuit mechanism for rule-based task switching and conflict resolution

Ardid-Ramírez, Joan Salvador; Wang, Xiao-Jing (Society for Neuroscience, 2013-12-11)

[EN] A hallmark of executive control is the brain's agility to shift between different tasks depending on the behavioral rule currently in play. In this work, we propose a "tweaking hypothesis" for task switching: a weak ...
An integrated microcircuit model of attentional processing in the neocortex

Ardid-Ramírez, Joan Salvador; Wang, Xiao-Jing; Compte, A. (Society for Neuroscience, 2007-08-08)

[EN] Selective attention is a fundamental cognitive function that uses top-down signals to orient and prioritize information processing in the brain. Single-cell recordings from behaving monkeys have revealed a number of ...
Análisis comparativo de resultados de aprendizaje en el contexto de la pandemia: docencia presencial prepandemia versus docencia remota/híbrida en clases de ingeniería

Ardid Ramírez, Miguel; Ardid-Ramírez, Joan Salvador; Herrero Debón, Alicia (EscuelaTécnica Superior de Ingeniería del Diseño. Universitat Politècnica de València, 2022-07-22)

[ES] La pandemia de la COVID-19 supuso el cambio repentino de la docencia presencial a la docencia remota y posteriormente a un modelo de clase híbrida. En este trabajo comparamos el rendimiento de estudiantes de ingeniería ...
Análisis del cambio repentino a docencia remota por la COVID-19 en los resultados de aprendizaje: caso de dos asignaturas anuales básicas en Grados de Ingeniería

Ardid Ramírez, Miguel; Ardid Ramírez, Joan Salvador; Herrero Debón, Alicia (Editorial Universitat Politècnica de València, 2021-09-28)

[EN] In this article we analyse the experience in two basic annual subjects in Engineering Degrees with the aim of determining if there are differences in the degree of achievement of the learning objectives, due to the ...
Anterior cingulate cortex cells identify process-specific errors of attentional control prior to transient prefrontal-cingulate inhibition

Shen, C.; Ardid-Ramírez, Joan Salvador; Kaping, D.; Westendorff, S.; Everling, S.; Womelsdorf, T. (Oxford University Press, 2015-08)

[EN] Errors indicate the need to adjust attention for improved future performance. Detecting errors is thus a fundamental step to adjust and control attention. These functions have been associated with the dorsal anterior ...
Attentional selection can be predicted by reinforcement learning of task-relevant stimulus features weighted by value-independent stickiness

Balcarras, M.; Ardid-Ramírez, Joan Salvador; Kaping, D.; Everling, S.; Womelsdorf, T. (MIT Press, 2016-02-01)

[EN] Attention includes processes that evaluate stimuli relevance, select the most relevant stimulus against less relevant stimuli, and bias choice behavior toward the selected information. It is not clear how these processes ...
Biased competition in the absence of input bias revealed through corticostriatal computation

Ardid-Ramírez, Joan Salvador; Sherfey, Jason S.; McCarthy, Michelle M.; Hass, Joachim; Pittman-Polletta, Benjamin R.; Kopell, Nancy (Proceedings of the National Academy of Sciences, 2019-04-23)

[EN] Classical accounts of biased competition require an input bias to resolve the competition between neuronal ensembles driving downstream processing. However, flexible and reliable selection of behaviorally relevant ...
Burst firing synchronizes prefrontal and anterior cingulate cortex during attentional control

Womelsdorf, T.; Ardid-Ramírez, Joan Salvador; Everling, S.; Valiante, T. (Elsevier, 2014-11-17)

[EN] Background: It is widely held that single cells in anterior cingulate and lateral prefrontal cortex (ACC/PFC) coordinate their activity during attentional processes, although cellular activity that may underlie such ...
Combined sensitivity of JUNO and KM3NeT/ORCA to the neutrino mass ordering

Aiello, S.; Albert, A.; Alshamsi, M.; Alves Garre, S.; Aly, Z.; Ambrosone, A.; Ameli, F.; Andre, M.; Androulakis, G.; Anghinolfi, M.; Anguita, M.; Ardid Ramírez, Miguel; Ardid-Ramírez, Joan Salvador; Aublin, J.; Bagatelas, C.; Bou Cabo, M.; Diego-Tortosa, D.; Espinosa Roselló, Víctor; García-Méndez, J.; Llorens Álvarez, Carlos David; Martínez Mora, Juan Antonio; Poirè, Chiara (Springer-Verlag, 2022-03-09)

[EN] This article presents the potential of a combined analysis of the JUNO and KM3NeT/ORCA experiments to determine the neutrino mass ordering. This combination is particularly interesting as it significantly boosts the ...
Constraints on persistent activity in a biologically detailed network model of the prefrontal cortex with heterogeneities

Hass, Joachim; Ardid, S.; Sherfey, Jason; Kopell, Nancy (Elsevier, 2022-08)

[EN] Persistent activity, the maintenance of neural activation over short periods of time in cortical networks, is widely thought to underlie the cognitive function of working memory. A large body of modeling studies has ...
Data analysis in underwater neutrino telescopes using advanced machine learning tools

Aslan Suárez, Antonio Alejandro (Universitat Politècnica de València, 2021-09-02)

[ES] Las radiaciones electromagnéticas no son la única forma que el ser humano tiene para estudiar los astros, de hecho, el estudio de la trayectoria de los neutrinos que llegan a la Tierra puede permitir el estudio de ...
Deep learning reconstruction in ANTARES

García-Méndez, J.; Geißelbrecht, N.; Eberl, T.; Ardid, M.; Ardid, S. (IOP Publishing, 2021-09)

[EN] ANTARES is currently the largest undersea neutrino telescope, located in the Mediterranean Sea and taking data since 2007. It consists of a 3D array of photo sensors, instrumenting about 10Mt of seawater to detect ...
Determining the neutrino mass ordering and oscillation parameters with KM3NeT/ORCA

Aiello, S.; Albert, A.; Alves Garre, S.; Aly, Z.; Ambrosone, A.; Ameli, F.; Andre, M.; Androulakis, G.; Anghinolfi, M.; Anguita, M.; Anton, G.; Ardid Ramírez, Miguel; Ardid-Ramírez, Joan Salvador; Aublin, J.; Bagatelas, C.; Bou Cabo, Manuel; Diego-Tortosa, D.; Espinosa Roselló, Víctor; Martínez Mora, Juan Antonio; Poirè, Chiara (Springer-Verlag, 2022-01-11)

[EN] The next generation of water Cherenkov neu-trino telescopes in the Mediterranean Sea are under con- struction offshore France (KM3NeT/ORCA) and Sicily (KM3NeT/ARCA). The KM3NeT/ORCA detector features an energy detection ...
DynaSim: a MATLAB toolbox for neural modeling and simulation

Sherfey, Jason S.; Soplata, Austin E.; Ardid-Ramírez, Joan Salvador; Roberts, Erik A.; Stanley, David A.; Pittman-Polletta, Benjamin R.; Kopell, Nancy J. (Frontiers Media SA, 2018-03-15)

[EN] DynaSim is an open-source MATLAB/GNU Octave toolbox for rapid prototyping of neural models and batch simulation management. It is designed to speed up and simplify the process of generating, sharing, and exploring ...
Estudio del meta-aprendizaje como alternativa a la disyuntiva entre el aprendizaje por refuerzo basado en modelo y el aprendizaje por refuerzo sin modelo

Miguez Quintela, Imanol (Universitat Politècnica de València, 2022-06-09)

[ES] Se comparará la eficiencia, ventajas y desventajas, de diferentes algoritmos de aprendizaje por refuerzo ("reinforcement learning", RL), tales como el refuerzo basado en modelo (model-based RL), el refuerzo sin modelo ...
Feature-specific prediction errors and surprise across macaque fronto-striatal circuits

Oemisch, M.; Westendorff, S.; Azimi, Marzyeh; Hassani, Seyed Alireza; Ardid-Ramírez, Joan Salvador; Tiesinga, Paul; Womelsdorf, Thilo (Nature Publishing Group, 2019-01-11)

[EN] To adjust expectations efficiently, prediction errors need to be associated with the precise features that gave rise to the unexpected outcome, but this credit assignment may be problematic if stimuli differ on multiple ...
Flexible resonance in prefrontal networks with strong feedback inhibition

Sherfey, Jason S.; Ardid-Ramírez, Joan Salvador; Hass, Joachim; Hasselmo, Michael E.; Kopell, Nancy J. (Public Library of Science, 2018-08-09)

[EN] Oscillations are ubiquitous features of brain dynamics that undergo task-related changes in synchrony, power, and frequency. The impact of those changes on target networks is poorly understood. In this work, we used ...
Hint for a TeV neutrino emission from the Galactic Ridge with ANTARES

Albert, A; Alves, S; Andre, M.; Ardid, M.; Ardid, S.; Aubert, J.J.; Aublin, J.; Baret, B.; Basa, S.; Becherini, P.; Belhorma, B.; Bendahman, M.; Benfenati, F.; Bertin, V.; Biagi, S.; García-Méndez, Juan; Martínez Mora, Juan Antonio; Poirè, Chiara (Elsevier, 2023-06-10)

[EN] Interactions of cosmic ray protons, atomic nuclei, and electrons in the interstellar medium in the inner part of the Milky Way produce gamma-ray flux from the Galactic Ridge. If the gamma-ray emission is dominated by ...
Implementation and first results of the KM3NeT real-time core-collapse supernova neutrino search

Aiello, S.; Albert, A.; Alshamsi, M.; Alves Garre, S.; Aly, Z.; Ambrosone, A.; Ameli, F.; Andre, M.; Androulakis, G.; Anghinolfi, M.; Anguita, M.; Ardid Ramírez, Miguel; Ardid-Ramírez, Joan Salvador; Aublin, J.; Bagatelas, C.; Bou Cabo, Manuel; Diego-Tortosa, Dídac; Espinosa Roselló, Víctor; Llorens Alvarez, Carlos David; Martínez Mora, Juan Antonio; Poirè, Chiara (Springer-Verlag, 2022-04-11)

[EN] The KM3NeT research infrastructure is uncon- struction in the Mediterranean Sea. KM3NeT will study atmospheric and astrophysical neutrinos with two multi- purpose neutrino detectors, ARCA and ORCA, primar-ily aimed ...