LARRAIN VALENZUELA, MARIA JOSEFINA

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LARRAIN VALENZUELA, MARIA JOSEFINA
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ORCID
0000-0001-6038-2483
Scopus Author ID
57196281837, 57195301664
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      12ScopusĀ© Citations 1
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    DEPRESIƓN Y OBESIDAD EN MUJERES: REVISIƓN DE LITERATURA CON SƍNTESIS NARRATIVA
    (Pontificia Universidad Catolica de Chile, 2026-07-16)
    Palma Contreras, Andrea MarĆ­a
    ;
    LARRAIN VALENZUELA, MARIA JOSEFINA  
    ;
    DĆ­az-Ferrada, Sara Ester
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    From neuromyths to neuroscience literacy: a cross-domain study of brain misconceptions among educators in Chilean special schools
    (Frontiers Media SA, 2026-04-23)
    Felipe von Hausen
    ;
    Claudia Carrasco-ManrĆ­quez
    ;
    Denise Quiroz-Martinez
    ;
    LARRAIN VALENZUELA, MARIA JOSEFINA  
      3
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    ScopusĀ© Citations 13  2
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    Conceptualization, Tasks and Neurobiological Correlates of Self-Regulation in Children and Adolescents: A Systematic Review of the Literature (2015-2020)
    (2022)
    LARRAIN VALENZUELA, MARIA JOSEFINA  
    ;
    Francisca Mardones
    ;
    Elisa Ansoleaga
    ;
    Leonie Kausel
    <jats:sec> <jats:title>Background:</jats:title> <jats:p>Self-regulation is a complex capacity that favors the modification of behavior in accordance with environmental demands.</jats:p> </jats:sec> <jats:sec> <jats:title>Objective:</jats:title> <jats:p>This article aims to review the scientific literature that conceptualizes self-regulation, analyze its potential latent dimensions, identify the instruments used to measure this construct and the empirical findings associated with its neurobiological correlates.</jats:p> </jats:sec> <jats:sec> <jats:title>Methods:</jats:title> <jats:p>A systematic review of the scientific literature published between 2015 and 2020. We include 29 empirical studies on children and adolescents self-regulatory capacity after combining the words self-regulation with cognition, brain and neurosciences.</jats:p> </jats:sec> <jats:sec> <jats:title>Results:</jats:title> <jats:p>Most of the articles included are from North America. A PICOS analysis was performed to increase understanding of self-regulatory capacity. Two dimensions of self-regulation are identified, contributing to a more global conceptualization of the concept of self-regulation; A cognitive dimension associated with executive functions, effortful control and inhibitory control, among others, and a dimension associated with personality, including traits such as irritability, impulsivity, openness and hyperactivity. Next, the instruments used to measure self-regulation are described, followed by a report of the important neurobiological findings, specifically, activation of the anterior cingulate cortex, dorsolateral prefrontal and ventromedial prefrontal cortex.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusion:</jats:title> <jats:p>Self-regulatory capacity is associated with a complex functioning that favors adaptive behavior and has neurobiological correlates.</jats:p> </jats:sec>
      7ScopusĀ© Citations 4
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    Theta and Alpha Oscillation Impairments in Autistic Spectrum Disorder Reflect Working Memory Deficit
    (2017)
    LARRAIN VALENZUELA, MARIA JOSEFINA  
    ;
    ZAMORANO M, FRANCISCO JAVIER
    ;
    Patricia Soto Icaza
    ;
    Ximena Carrasco
    ;
    Claudia Herrera
    A dysfunction in the excitatoryā€“inhibitory (E/I) coordination in neuronal assembly has been proposed as a possible neurobiological mechanism of Autistic Spectrum Disorder (ASD). However, the potential impact of this mechanism in cognitive performance is not fully explored. Since the main consequence of E/I dysfunction is an impairment in oscillatory activity and its underlying cognitive computations, we assessed the electroencephalographic activity of ASD and typically developing (TD) subjects during a working-memory task. We found that ASD subjects committed more errors than TD subjects. Moreover, TD subjects demonstrated a parametric modulation in the power of alpha and theta band while ASD subjects did not demonstrate significant modulations. The preceding leads to significant differences between the groups in both the alpha power placed on the occipital cortex and the theta power placed on the left premotor and the right prefrontal cortex. The impaired theta modulation correlated with autistic symptoms. The results indicated that ASD may present an alteration in the recruitment of the oscillatory activity during working-memory, and this alteration could be related to the physiopathology of the disorder.
    ScopusĀ© Citations 51  7
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    Theta and alpha oscillations may underlie improved attention and working memory in musically trained children
    (2024)
    F. Zamorano
    ;
    Leonie Kausel
    ;
    BILLEKE BOBADILLA, PABLO ERNESTO  
    ;
    M. E. Sutherland
    ;
    M. I. Alliende
    <jats:title>Abstract</jats:title><jats:p><jats:bold>Introduction</jats:bold>: Attention and working memory are key cognitive functions that allow us to select and maintain information in our mind for a short time, being essential for our daily life and, in particular, for learning and academic performance. It has been shown that musical training can improve working memory performance, but it is still unclear if and how the neural mechanisms of working memory and particularly attention are implicated in this process. In this work, we aimed to identify the oscillatory signature of bimodal attention and working memory that contributes to improved working memory in musically trained children.</jats:p><jats:p><jats:bold>Materials and methods</jats:bold>: We recruited children with and without musical training and asked them to complete a bimodal (auditory/visual) attention and working memory task, whereas their brain activity was measured using electroencephalography. Behavioral, timeā€“frequency, and source reconstruction analyses were made.</jats:p><jats:p><jats:bold>Results</jats:bold>: Results showed that, overall, musically trained children performed better on the task than children without musical training. When comparing musically trained children with children without musical training, we found modulations in the alpha band preā€stimuli onset and the beginning of stimuli onset in the frontal and parietal regions. These correlated with correct responses to the attended modality. Moreover, during the end phase of stimuli presentation, we found modulations correlating with correct responses independent of attention condition in the theta and alpha bands, in the left frontal and right parietal regions.</jats:p><jats:p><jats:bold>Conclusions</jats:bold>: These results suggest that musically trained children have improved neuronal mechanisms for both attention allocation and memory encoding. Our results can be important for developing interventions for people with attention and working memory difficulties.</jats:p>
      9ScopusĀ© Citations 5
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    Burnout y satisfacciĆ³n laboral en trabajadores/as sociales de la RegiĆ³n de Ƒuble, Chile
    (Universidad del Valle, 2025-01-01)
    Andrea MarĆ­a Palma-Contreras
    ;
    Francisca Antonia Marchant-Troncoso
    ;
    Viviana Edith Vera-Meza
    ;
    LARRAIN VALENZUELA, MARIA JOSEFINA  
    El objetivo de este artĆ­culo es analizar el nivel de burnout (agotamiento) en trabajadores/as sociales de la RegiĆ³n de Ƒuble de Chile y estudiar la asociaciĆ³n de fenĆ³menos laborales adversos -altas demandas emocionales, acoso laboral, vulnerabilidad laboral y sobrecarga laboral- con burnout y entre burnout y dichos fenĆ³menos con insatisfacciĆ³n laboral. Se realizĆ³ un estudio transversal mediante la aplicaciĆ³n de un cuestionario de auto reporte a 173 trabajadores/as sociales (143 mujeres y 30 hombres) de la Red Intersectorial de Trabajadores/as Sociales de la RegiĆ³n de Ƒuble. Los resultados muestran que el 6.9% de los encuestados presenta sĆ­ndrome de Burnout. En los anĆ”lisis bivariados se observa asociaciĆ³n de altas demandas emocionales, presencia de acoso laboral y sobrecarga laboral con Burnout. AdemĆ”s, se encontrĆ³ una asociaciĆ³n de Burnout, acoso laboral los Ćŗltimos 6 meses, vulnerabilidad e inestabilidad laboral con la insatisfacciĆ³n laboral. Al ajustar por atenciĆ³n de pĆŗblico y aƱos de trayectoria se encontrĆ³ que los trabajadores con altas demandas emocionales (OR= 6,811), acoso laboral [OR=5,430) y sobrecarga laboral (OR=4,431) tienen mayor chance de presentar Burnout que aquellos/as que no reportan dichas condiciones. Por Ćŗltimo, se realizĆ³ un anĆ”lisis por tramo de sueldo y tipo de contrato, los que reportan burnout (OR= 4,042), vulnerabilidad laboral (OR=2,464) o inestabilidad laboral (OR=2,526), tienen mĆ”s chance de presentar insatisfacciĆ³n laboral que los que no reportan esos fenĆ³menos.
      5