SILVA CONCHA, JAIME
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SILVA CONCHA, JAIME
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jaimesilva@udd.cl
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56082436700

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Dataset - PSACR002 Cognitive Reappraisal

2021 , SILVA CONCHA, JAIME

Contains a date-separated version of the raw, unprocessed study, processed versions of these data, and analysis scripts

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The mediating role of affects in the relation between optimism and well-being

2016 , Vera-Villarroel, Pablo , Celis-Atenas, Karem , Alfonso Urzua , SILVA CONCHA, JAIME , Lillo, Sebastián

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Increase in Beta Power Reflects Attentional Top-Down Modulation After Psychosocial Stress Induction

2021 , Ismael Palacios-García , SILVA CONCHA, JAIME , Mario Villena-González , Germán Campos-Arteaga , Claudio Artigas-Vergara , Nicolas Luarte , Eugenio Rodríguez , Conrado A. Bosman

Selective attention depends on goal-directed and stimulus-driven modulatory factors, each relayed by different brain rhythms. Under certain circumstances, stress-related states can change the balance between goal-directed and stimulus-driven factors. However, the neuronal mechanisms underlying these changes remain unclear. In this study, we explored how psychosocial stress can modulate brain rhythms during an attentional task and a task-free period. We recorded the EEG and ECG activity of 42 healthy participants subjected to either the Trier Social Stress Test (TSST), a controlled procedure to induce stress, or a comparable control protocol (same physical and cognitive effort but without the stress component), flanked by an attentional task, a 90 s of task-free period and a state of anxiety questionnaire. We observed that psychosocial stress induced an increase in heart rate (HR), self-reported anxiety, and alpha power synchronization. Also, psychosocial stress evoked a relative beta power increase during correct trials of the attentional task, which correlates positively with anxiety and heart rate increase, and inversely with attentional accuracy. These results suggest that psychosocial stress affects performance by redirecting attentional resources toward internal threat-related thoughts. An increment of endogenous top-down modulation reflected an increased beta-band activity that may serve as a compensatory mechanism to redirect attentional resources toward the ongoing task. The data obtained here may contribute to designing new ways of clinical management of the human stress response in the future and could help to minimize the damaging effects of persistent stressful experiences.

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Physical and psychosocial development of Mapuche and nonindigenous Chilean toddlers: A modest role of ethnicity

2018 , Marcelo A. Navarrete , SILVA CONCHA, JAIME , Marinus H. Van Ijzendoorn , Rodrigo A. Cárcamo

AbstractMapuche represents the largest indigenous group in Chile amounting to nearly 10% of the total population. In a longitudinal cohort of 12,398 children, we analyzed the role of ethnicity in physical and psychosocial development of Mapuche and nonindigenous Chilean toddlers (age 2.5 years), taking into account sociodemographic and caregiver characteristics. As indicated by our univariate analysis, the Mapuche developmental niche was characterized by lower income, lower maternal education, poorer quality of the home environment, longer breastfeeding, and higher parental stress. Physical development showed higher body mass index. Mapuche children showed less externalizing problems. We then analyzed the incremental contribution of ethnicity in a series of hierarchical regressions with the second wave of developmental measurements (age 4.5 years) as outcome variables, showing a significant but modest incremental contribution of ethnicity to the prediction of children's development between 2.5 and 4.5 years of age. Controlling for environmental variables, Mapuche showed less externalizing and internalizing, behavior problems. Socioeconomic status, quality of the home environment, and parenting stress were stronger predictors of socioemotional development than ethnicity per se.

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Assessing Subjective Processes and Vulnerability in Mindfulness-based Interventions: A Mixed methods Exploratory Study

2021 , Medeiros, Sebastian , Carla Crempien , Vasquez-Rosati, Alejandra , Duarte, Javiera , Catherine Andreu , Langer, Alvaro, I , Ibaceta, Miguel , SILVA CONCHA, JAIME , Cosmelli, Diego

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EFFECTS OF AN INTERVENTION TO PROMOTE SOCIOEMOTIONAL DEVELOPMENT IN TERMS OF ATTACHMENT SECURITY: A STUDY IN EARLY INSTITUTIONALIZATION IN CHILE

2014 , Felipe Lecannelier , SILVA CONCHA, JAIME , Marianela Hoffmann , Rolando Melo , Raquel Morales

ABSTRACTThe Chilean government commissioned a quasi‐experimental study with a pre‐/postintervention design that had two general aims: (a) to assess infants’ psychoaffective developmental levels (pre‐intervention phase) and (b) to evaluate whether an intervention based on the promotion of socioemotional development modifies the infant's psychoaffective development. Sixty‐two institutionalized infants and their alternative caregivers were evaluated at a pre‐intervention stage. An intervention then took place, with the caregivers trained according to an “attachment sensitivity manual.” Results showed normal ranges of psychomotor development (64% normal, 9% delayed) and a very high frequency of attachment insecurity, as compared to the normative population (53%).The intervention significantly improved social orientation and object orientation as well as activity and reactivity levels. We conclude that although institutionalized infants in Chile do not exhibit high levels of atypical attachment, socioemotional deterioration may lead to vulnerability in present and future development. Finally, the scope of this study affected public policies regarding children, initiating a change to a foster family system and a variety of modifications in the strategies for adopting institutionalized infants.

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International Comparisons of Behavioral and Emotional Problems in Preschool Children: Parents' Reports From 24 Societies

2011 , Leslie A. Rescorla , Thomas M. Achenbach , Masha Y. Ivanova , Valerie S. Harder , Laura Otten , Niels Bilenberg , Gudrun Bjarnadottir , Christiane Capron , Sarah S. W. De Pauw , Pedro Dias , Anca Dobrean , Manfred Döpfner , Michel Duyme , Valsamma Eapen , Nese Erol , Elaheh Mohammad Esmaeili , Lourdes Ezpeleta , Alessandra Frigerio , Daniel S. S. Fung , Miguel Gonçalves , Halldór Guðmundsson , Suh-Fang Jeng , Roma Jusiené , Young Ah Kim , Solvejg Kristensen , Jianghong Liu , Felipe Lecannelier , Patrick W. L. Leung , Bárbara César Machado , Rosario Montirosso , Kyung Ja Oh , Yoon Phaik Ooi , Julia Plück , Rolando Pomalima , Jetishi Pranvera , Klaus Schmeck , Mimoza Shahini , SILVA CONCHA, JAIME , Zeynep Simsek , Andre Sourander , José Valverde , Jan van der Ende , Karla G. Van Leeuwen , Yen-Tzu Wu , Sema Yurdusen , Stephen R. Zubrick , Frank C. Verhulst

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Dataset - Motivating social distancing

2020 , MÓNICA TORO , SILVA CONCHA, JAIME , ADRIANA OLAYA

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Behavioral/Emotional Problems of Preschoolers

2012 , Leslie A. Rescorla , Thomas M. Achenbach , Masha Y. Ivanova , Niels Bilenberg , Gudrun Bjarnadottir , Silvia Denner , Pedro Dias , Anca Dobrean , Manfred Döpfner , Alessandra Frigerio , Miguel Gonçalves , Halldór Guðmundsson , Roma Jusiene , Solvejg Kristensen , Felipe Lecannelier , Patrick W. L. Leung , Jianghong Liu , Sofia P. Löbel , Bárbara César Machado , Jasminka Markovic , Paola A. Mas , Elaheh Mohammad Esmaeili , Rosario Montirosso , Julia Plück , Adelina Ahmeti Pronaj , Rodriguez, Jorge , Pamela O. Rojas , Klaus Schmeck , Mimoza Shahini , SILVA CONCHA, JAIME , Jan van der Ende , Frank C. Verhulst

This study tested societal effects on caregiver/teacher ratings of behavioral/emotional problems for 10,521 preschoolers from 15 societies. Many societies had problem scale scores within a relatively narrow range, despite differences in language, culture, and other characteristics. The small age and gender effects were quite similar across societies. The rank orders of mean item ratings were similar across diverse societies. For 7,380 children from 13 societies, ratings were also obtained from a parent. In all 13 societies, mean Total Problems scores derived from parent ratings were significantly higher than mean Total Problems scores derived from caregiver/teacher ratings, although the size of the difference varied somewhat across societies. Mean cross-informant agreement for problem scale scores varied across societies. Societies were very similar with respect to which problem items, on average, received high versus low ratings from parents and caregivers/teachers. Within every society, cross-informant agreement for item ratings varied widely across children. In most respects, results were quite similar across 15 very diverse societies.

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International Comparisons of Emotionally Reactive Problems in Preschoolers: CBCL/1½–5 Findings from 21 Societies

2019 , Leslie A. Rescorla , Breana Genaro , Masha Y. Ivanova , SILVA CONCHA, JAIME

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