Horizontes corpocartográficos del teatro comunitario intercultural ngigua

This article refers to the relationship between body and sensitive cartography that relate works entrusted to the students of Language and Culture of the Intercultural University of the state of Tlacotepec Benito Juárez, in San Marcos Tlacoyalco, ngigua region. The exercises are part of the academic tutoring based on art as a tool of cohesion and community strengthening. We believe that the relationship between body/geography/cartography, memory and sensitive languages should be problematized in the light of societies that can be explained towards homogeneity such as societies governed by patriarchal, capital and colonial logics. We have spoken from the urgency to produce pedagogical alternatives from the listening, tenderness and urgency of awake utopias in regions of contemporary armed conflict.El presente artículo refiere la relación entre cuerpo y cartografía sensible que relata trabajos encomendados a los estudiantes de Lengua y Cultura de la Universidad Intercultural del estado de Puebla, sede Tlacotepec de Benito Juárez, en San Marcos Tlacoyalco, región ngigua poblana. Los ejercicios forman parte de las tutorías académicas basadas en el arte como herramienta de cohesión y fortalecimiento comunitario. Consideramos que la relación entre cuerpo/geografía/cartografía, memoria y lenguajes sensibles debe ser problematizada a la luz de sociedades que propenden hacia la homogeneidad, como son las sociedades regidas por lógicas patriarcales, capitales y coloniales. Nosotros, nosotras tramamos nuestra palabra y escucha desde la urgencia de producir alternativas pedagógicas desde la escucha, la ternura y la urgencia de utopías despiertas en regiones en conflicto armado contemporáneo

Influence of hand tracking in immersive virtual reality for memory assessment

Few works analyze the parameters inherent to immersive virtual reality (IVR) in applications for memory evaluation. Specifically, hand tracking adds to the immersion of the system, placing the user in the first person with full awareness of the position of their hands. Thus, this work addresses the influence of hand tracking in memory assessment with IVR systems. For this, an application based on activities of daily living was developed, where the user must remember the location of the elements. The data collected by the application are the accuracy of the answers and the response time; the participants are 20 healthy subjects who pass the MoCA test with an age range between 18 to 60 years of age; the application was evaluated with classic controllers and with the hand tracking of the Oculus Quest 2. After the experimentation, the participants carried out presence (PQ), usability (UMUX), and satisfaction (USEQ) tests. The results indicate no difference with statistical significance between both experiments; controller experiments have 7.08% higher accuracy and 0.27 ys. faster response time. Contrary to expectations, presence was 1.3% lower for hand tracking, and usability (0.18%) and satisfaction (1.43%) had similar results. The findings indicate no evidence to determine better conditions in the evaluation of memory in this case of IVR with hand tracking

Response to “Is there room for attentional impairments in binge drinking? A commentary on Carbia et al. (2018).”

Carina Carbia has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 754535. Eduardo López-Caneda was supported by the SFRH/BPD/109750/2015 Postdoctoral Fellowship of the Portuguese Foundation for Science and Technology as well as by the Psychology Research Centre (UID/PSI/01662/2013), co-financed by FEDER through COMPETE2020 under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007653)S

Edge detection in continuous-range

Se presenta un método para la detección de bordes de dominio o cambios de estacionariedad en secuencias de valores de rango continuo como los obtenidos en Electromiografía (EMG) o en registros de Electroencefalograma (EEG). La detección del cambio de estacionariedad en una secuencia temporal como las mencionadas presenta interés para el reconocimiento del comienzo de una contracción muscular en EMG o del comienzo y propagación de una crisis epiléptica en el análisis del registro del EEG. El punto de segmentación en una serie temporal se corresponde con la posición en la serie a partir de la cual cambian las propiedades estadísticas de los valores que la conforman. El método aquí propuesto se basa en el cálculo de la divergencia de Jensen-Shannon (DJS) entre los segmentos que forman la secuencia. La DJS es una medida de distancia entre distribuciones de probabilidad y para su evaluación aproximamos las distribuciones que corresponden a cada segmento por el método del kernel de densidad.Para la aplicación del método se elige una posición en la secuencia como punto de segmentación y se calcula la DJS entre las distribuciones asociadas a las sub-secuencias que quedan así definidas. Se repite este proceso para cada posición en la secuencia y se identifica el punto de segmentación con la posición que arroja el valor máximo para la DJSFil: Aguirre Varela, Guillermo Gabriel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Ré, M. A.. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: López, N. M.. Universidad Nacional de San Juan; Argentin

Evolution of the binge drinking pattern in college students: neuropsychological correlates

It is well known that alcohol impairs response inhibition and that adolescence is a critical period of neuromaturation where cognitive processes such as inhibitory control are still developing. In recent years, growing evidence has shown the negative consequences of alcohol binge drinking on the adolescent and young human brain. However, the effects of cessation of binge drinking on brain function remain unexplored. The objective of the present study was to examine brain activity during response execution and inhibition in young binge drinkers in relation to the progression of their drinking habits over time. Event-related potentials (ERPs) elicited by a Go/NoGo task were recorded twice within a 2- year interval in 57 undergraduate students (25 controls, 22 binge drinkers, and 10 ex-binge drinkers) with no personal or family history of alcoholism or psychopathological disorders. The results showed that the amplitude of NoGo-P3 over the frontal region correlated with an earlier age of onset of regular drinking as well as with greater quantity and speed of alcohol consumption. Regression analysis showed that NoGo-P3 amplitude was significantly predicted by the speed of alcohol intake and the age of onset of regular drinking. The group comparisons showed that, after maintaining a binge drinking pattern for at least 2 years, binge drinkers displayed significantly larger NoGo-P3 amplitudes than controls, whereas ex-binge drinkers were in an intermediate position between the two other groups (with no significant differences with respect to controls or binge drinkers). These findings suggest that binge drinking in young people may impair the neural functioning related to inhibitory processes, and that the cessation of binge drinking may act as a brake on the neurophysiological impairments related to response inhibitionThe study was supported by grants from the Consellería de Educación e Ordenación Universitaria, Xunta de Galicia (CN 2012/024), the Spanish Ministerio de Ciencia e Innovación (PSI2011-22575) and the Ministerio de Sanidad y Política Social, Plan Nacional sobre Drogas (exp 2010/134).S

Impact of alcohol use on inhibitory control (and vice versa) during adolescence and young adulthood

Aims: Adolescence is usually the time when individuals first drink alcohol and this has been associated with relatively weak or immature inhibitory control. This review examines the changes on brain development and inhibitory function that take place during adolescence and youth as well as the relationship between inhibitory control and alcohol use at this early age. Methods: Narrative review of the chief studies related to (a) the development of inhibitory control during adolescence, (b) the deficits in the inhibitory ability in alcohol use disorders and (c) the effects of acute alcohol intake and binge drinking on inhibitory control in adolescents and young adults. Results: Inhibitory control processes are developing during adolescence and youth. Poor inhibitory functions may predispose the individual to alcohol misuse. Likewise, acute and binge alcohol drinking may impair the inhibitory control and compromise the ability to prevent or stop behaviour related to alcohol use. Conclusion: Poor inhibitory control can be both the cause and the consequence of excessive alcohol use. Adolescence and young adulthood may be a particularly vulnerable period due to (a) the weak or immature inhibitory functioning typical of this stage may contribute to the inability of the individual to control alcohol use and (b) alcohol consumption per se may alter or interrupt the proper development of inhibitory control leading to a reduced ability to regulate alcohol intake. Further longitudinal research is needed to evaluate the interaction between inhibitory control dysfunction and alcohol use in both situationsThe study was supported by grants from the Spanish Ministerio de Ciencia e Innovación (PSI2011-22575) and the Ministerio de Sanidad y Política Social, Plan Nacional sobre Drogas (exp 2010/134)S

Working memory over a six-year period in young binge drinkers

Adolescence and early adulthood are periods of particular vulnerability to the neurotoxic effects of alcohol. Young people with alcohol-use disorders display deficits in working memory (WM). This function is supported by the prefrontal cortex, a late-maturing brain region. However, little is known about the progression of cognitive dysfunctions associated with a binge-drinking (BD) pattern of alcohol consumption among non-clinical adolescents. The objective of this study was to analyze the relationship between BD trajectory and WM in university students. An initial sample of 155 male and female first-year university students was followed prospectively over 6 years. The participants were classified as stable non-BDs, stable BDs, and ex-BDs, according to the third item of the Alcohol Use Disorders Identification Test (AUDIT). WM was assessed using the Self-Ordered Pointing Task. Generalized linear mixed models were applied. The results showed that stable BDs committed more total perseverative errors and showed a lower WM span in the difficult blocks than stable non-BDs. Difficulties in WM span showed some improvement, whereas perseveration errors remained constant throughout the follow-ups in the stable BDs. There were no significant differences between ex-BDs and non-BDs. In conclusion, stable BD is associated with WM deficits, particularly perseverations and low WM span in demanding trials, when compensatory mechanisms may no longer be successful. The partial improvement in WM span may support the notion of a neuromaturational delay, whereas the temporal stability of perseveration deficits may reflect either neurotoxic effects of alcohol or premorbid characteristics. Abandoning the BD pattern of alcohol consumption may lead to partial recoveryThe study was supported by grants from the Spanish Ministerio de Ciencia e Innovación, Plan Nacional (PSI2011-22575) and Plan Nacional Sobre Drogas (exp 2010/134) and (exp 2015/034). Carina Carbia was supported by the FPU program (FPU13/04569) of the Spanish Ministerio de EducaciónS

Larger mid-dorsolateral prefrontal gray matter volume in young binge drinkers revealed by voxel-based morphometry

Binge drinking or heavy episodic drinking is a high prevalent pattern of alcohol consumption among young people in several countries. Despite increasing evidence that binge drinking is associated with impairments in executive aspects of working memory (i.e. self-ordered working memory), processes known to depend on the mid-dorsolateral prefrontal cortex (Brodmann areas 46 and 9), less is known about the impact of binge drinking on prefrontal gray matter integrity. Here, we investigated the effects of binge drinking on gray matter volume of mid- dorsolateral prefrontal cortex in youths. We used voxel-based morphometry on the structural magnetic resonance images of subjects reporting a persistent (at least three years) binge drinking pattern of alcohol use (n = 11; age 22.4361.03) and control subjects (n = 21; age 22.1861.08) to measure differences in gray matter volume between both groups. In a region of interest analysis of the mid-dorsolateral prefrontal cortex, after co-varying for age and gender, we observed significantly larger gray matter volume in the left middorsolateral prefrontal cortex (Brodmann areas 46 and 9) in binge drinkers in comparison with control subjects. Furthermore, there was a significant positive correlation between left mid-dorsolateral prefrontal cortex volume and Self-Ordered Pointing Test (SOPT) total errors score in binge drinkers. The left mid-dorsolateral prefrontal cortex volume also correlated with the quantity and speed of alcohol intake. These findings indicate that a repeated exposure to alcohol -that does not meet criteria for alcohol dependence- throughout post-adolescent years and young adulthood is linked with structural anomalies in mid-dorsolateral prefrontal regions critically involved in executive aspects of working memoryThis study was supported by a grant from the ConsellerÍa de Industria e InnovaciÓn, Xunta de Galicia (INCITE08PXIB211015PR) and by two grants from the Ministerio de Ciencia e InnovaciÓn of Spain (EDU2008-03400; PSI2011-22575). SD was supported by a postdoctoral contract from the Isidro Parga Pondal program (Xunta de Galicia, Spain). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscriptS

Neurocognitive effects of binge drinking on verbal episodic memory. An ERP study in university students

Background: Verbal memory may be affected by engagement in alcohol binge drinking during youth, according to the findings of neuropsychological studies. However, little is known about the dynamics of the neural activity underlying this cognitive process in young, heavy drinkers. Aims: To investigate brain event-related potentials associated with cued recall from episodic memory in binge drinkers and controls. Methods: Seventy first-year university students were classified as binge drinkers (32: 17 female) or controls (38: 18 female). The participants completed a verbal paired associates learning task during electroencephalogram (EEG) recording. ERPs elicited by old and new word pairs were extracted from the cued-recall phase of the task by using Principal Component Analysis. Subjects also performed a standardized neuropsychological verbal learning test. Results: Two of the three event-related potentials components indicating old/new memory effects provided evidence for anomalies associated with binge drinking. The old/new effects were absent in the binge drinkers in the two subsequent posterior components, identified with the late parietal component and the late posterior negativity The late frontal component revealed similar old/new effects in both groups. Binge drinkers showed similar behavioural performance to controls in the verbal paired associates task, but performed poorly in the more demanding short-term cued-recall trial of a neuropsychological standardized test. Conclusion: Event-related potentials elicited during a verbal cued-recall task revealed differences in brain functioning between young binge drinkers and controls that may underlie emergent deficits in episodic memory linked to alcohol abuse. The brain activity of binge drinkers suggests alterations in the hippocampal - posterior parietal cortex circuitry subserving recognition and recollection of the cue context and generation of the solution, in relation to verbal information shallowly memorised.This work was supported by grants PID 2020-113487RB-100, funded by MCIN/AEI/10.13039/501100011033; PSI2011-22575, funded by MCIN, and GRC ED431C 2021/08, funded by the Department of I + D of the Regional Government, Xunta de GaliciaS

Is machine learning ready for traffic engineering optimization?

Traffic Engineering (TE) is a basic building block of the Internet. In this paper, we analyze whether modern Machine Learning (ML) methods are ready to be used for TE optimization. We address this open question through a comparative analysis between the state of the art in ML and the state of the art in TE. To this end, we first present a novel distributed system for TE that leverages the latest advancements in ML. Our system implements a novel architecture that combines Multi-Agent Reinforcement Learning (MARL) and Graph Neural Networks (GNN) to minimize network congestion. In our evaluation, we compare our MARL+GNN system with DEFO, a network optimizer based on Constraint Programming that represents the state of the art in TE. Our experimental results show that the proposed MARL+GNN solution achieves equivalent performance to DEFO in a wide variety of network scenarios including three real-world network topologies. At the same time, we show that MARL+GNN can achieve significant reductions in execution time (from the scale of minutes with DEFO to a few seconds with our solution).This work was supported by the Spanish MINECO under contract TEC2017-90034-C2-1-R (ALLIANCE), the Catalan Institution for Research and Advanced Studies (ICREA) and the Secretariat for Universities and Research of the Ministry of Business and Knowledge of the Government of Catalonia as well as the European Social Fund.Peer ReviewedPostprint (author's final draft