Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 40
Filtrar
1.
Front Psychol ; 14: 1289209, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38179499

RESUMEN

Previous research on the motives for lying lacks factorial models that allow grouping of motives into specific categories. The objective of this study is to confirm the factorial structure of the questionnaire of motives for lying (CEMA-A). Participants were 1,722 adults residing in the Canary Islands (Spain) who completed the CEMA-A and the Eysenck Personality Questionnaire (EPQ-R). The four-dimensional structure of the questionnaire was confirmed (χ2 = 1460.97, df = 325, p = 0.001; CFI = 0.94; TLI = 0.93; NFI = 0.93; NNFI = 0.93; RMSEA = 0.05, CI = 0.051-0.057; SRMR = 0.04). The four factors of the CEMA-A were Intrapersonal Motivation-Emotionality, Interpersonal Motivation-Sociability, Egoism/Hardness Motivation, and Malicious Motivation, with an internal consistency between 0.79 and 0.91. Invariance analyses confirmed the equivalence of the instrument for men and women. The CEMA-A factors positively correlated with Neuroticism and Psychoticism, and negatively with Dissimulation. Extraversion was not related to any of the factors, and only displayed a low negative correlation with Intrapersonal Motivation-Emotionality. Analysis of variance showed that men scored higher in Egoism/Hardness and Malicious Motivation. The CEMA-A has proven capable of apprehending the motives for lying and has adequate psychometric criteria for use in various populations.

2.
Proc Natl Acad Sci U S A ; 119(35): e2202764119, 2022 08 30.
Artículo en Inglés | MEDLINE | ID: mdl-35998220

RESUMEN

The use of spoken and written language is a fundamental human capacity. Individual differences in reading- and language-related skills are influenced by genetic variation, with twin-based heritability estimates of 30 to 80% depending on the trait. The genetic architecture is complex, heterogeneous, and multifactorial, but investigations of contributions of single-nucleotide polymorphisms (SNPs) were thus far underpowered. We present a multicohort genome-wide association study (GWAS) of five traits assessed individually using psychometric measures (word reading, nonword reading, spelling, phoneme awareness, and nonword repetition) in samples of 13,633 to 33,959 participants aged 5 to 26 y. We identified genome-wide significant association with word reading (rs11208009, P = 1.098 × 10-8) at a locus that has not been associated with intelligence or educational attainment. All five reading-/language-related traits showed robust SNP heritability, accounting for 13 to 26% of trait variability. Genomic structural equation modeling revealed a shared genetic factor explaining most of the variation in word/nonword reading, spelling, and phoneme awareness, which only partially overlapped with genetic variation contributing to nonword repetition, intelligence, and educational attainment. A multivariate GWAS of word/nonword reading, spelling, and phoneme awareness maximized power for follow-up investigation. Genetic correlation analysis with neuroimaging traits identified an association with the surface area of the banks of the left superior temporal sulcus, a brain region linked to the processing of spoken and written language. Heritability was enriched for genomic elements regulating gene expression in the fetal brain and in chromosomal regions that are depleted of Neanderthal variants. Together, these results provide avenues for deciphering the biological underpinnings of uniquely human traits.


Asunto(s)
Estudio de Asociación del Genoma Completo , Individualidad , Lectura , Habla , Adolescente , Adulto , Niño , Preescolar , Sitios Genéticos , Humanos , Lenguaje , Polimorfismo de Nucleótido Simple , Adulto Joven
3.
Psychophysiology ; 59(4): e13986, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-34942021

RESUMEN

Prior research suggests that we may access the meaning of parafoveal words during reading. We explored how semantic-plausibility parafoveal processing takes place in natural reading through the co-registration of eye movements (EM) and fixation-related potentials (FRPs), using the boundary paradigm. We replicated previous evidence of semantic parafoveal processing from highly controlled reading situations, extending their findings to more ecologically valid reading scenarios. Additionally, and exploring the time-course of plausibility preview effects, we found distinct but complementary evidence from EM and FRPs measures. FRPs measures, showing a different trend than EM evidence, revealed that plausibility preview effects may be long-lasting. We highlight the importance of a co-registration set-up in ecologically valid scenarios to disentangle the mechanisms related to semantic-plausibility parafoveal processing.


Asunto(s)
Lectura , Semántica , Movimientos Oculares , Fijación Ocular , Fóvea Central , Humanos
4.
Front Psychol ; 12: 752273, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34867643

RESUMEN

Research on reading comprehension in immigrant students is heterogeneous and conflicting. Differences in socioeconomic status and cultural origins are very likely confounds in determining whether differences to native pupils can be attributed to immigrant status. We collected data on 312 Spanish students of Native, of Hispanic origin-therefore with the same family language as native students- and Non-Hispanic origin, while controlling for socioeconomic status, non-verbal reasoning and school membership. We measured reading comprehension, knowledge of syntax, sentence comprehension monitoring, and vocabulary. Differences among groups appeared only in vocabulary and syntax (with poorer performance in the non-Hispanic group), with no differences in reading comprehension. However, regression analyses showed that most of the variability in reading comprehension was predicted by age, socioeconomic status, non-verbal reasoning, and comprehension monitoring. Group membership did not significantly contribute to explain reading comprehension variability. The present study supports the idea that socioeconomically disadvantaged students, both native and immigrants from diverse cultural backgrounds, irrespective of the language of origin, are probably equally at risk of poor reading comprehension.

5.
Brain Sci ; 11(11)2021 Oct 21.
Artículo en Inglés | MEDLINE | ID: mdl-34827375

RESUMEN

DNA methylation clocks are used as molecular estimators of epigenetic age, but with little evidence in mothers and none in neglectful mothering. We investigated differences in epigenetic age acceleration (EAA) and the role of empathy using the PhenoAge clock. We collected saliva samples from mothers with extreme disregard for their child's needs (50 in the neglect group, NG) and mothers with non-neglectful caregiving (87 in the control group, CG). Mothers completed an empathy scale, along with questionnaires of their own childhood maltreatment, adverse life events and psychiatric disorders. Sociodemographic variables potentially affecting EAA were also measured. The ANCOVA solution showed a significant increase in EAA in the NG compared to the CG, after adjustment for maternal age, number of pregnancies, financial assistance, adverse events, childhood maltreatment and psychiatric disorder. The group interaction effects showed a reduction in EAA for greater empathic concern and for a higher education level both as positive factors, and an increment in EAA for mothers living in a two-parent family as a risk factor, all in the NG. Our findings open the search for protective factors of EAA associated with caregiver behavior to reduce health vulnerabilities and poor social functioning, especially for mothers at risk of maladaptive caregiving.

6.
Children (Basel) ; 8(10)2021 Sep 27.
Artículo en Inglés | MEDLINE | ID: mdl-34682124

RESUMEN

Early diagnosis of child neglect is an ongoing challenge with consequences of the child's safety, health, and effective referral for intervention. This study aims to obtain a selected set of family, maternal, and dyadic variables of the immediate caregiving environment for diagnosis, preventive, and intervention responses in healthcare settings. Mothers and their children under five years old: 51 in the neglected group (NG) and 89 in the non-neglected control group (CG), were recruited through pediatric primary care services and social services in Spain. Family demographics, adverse events, childhood maltreatment, maternal psychopathologies, personality variables, and observed mother-child interactions were assessed. Gradient boosting analyses were applied for the contributor's relative importance (RI), followed by logistic regression and discriminant analyses for those with higher RI. Parametric analyses showed high diagnostic accuracy (80-82% of NG and 92% of CG) for risky factors of child neglect: having a physically neglected and depressed mother, living in families in need of financial assistance, and large families; and for protective factors: having an older mother and showing higher mother-child emotional availability. Identifying a select group of features makes early diagnosis and preventive intervention more effective for mitigating the impact of child neglect and building mother-child resilience.

7.
Front Aging Neurosci ; 13: 694254, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34489673

RESUMEN

Objectives: Cognitive aging has been extensively investigated using both univariate and multivariate analyses. Sophisticated multivariate approaches such as graph theory could potentially capture unknown complex associations between multiple cognitive variables. The aim of this study was to assess whether cognition is organized into a structure that could be called the "cognitive connectome," and whether such connectome differs between age groups. Methods: A total of 334 cognitively unimpaired individuals were stratified into early-middle-age (37-50 years, n = 110), late-middle-age (51-64 years, n = 106), and elderly (65-78 years, n = 118) groups. We built cognitive networks from 47 cognitive variables for each age group using graph theory and compared the groups using different global and nodal graph measures. Results: We identified a cognitive connectome characterized by five modules: verbal memory, visual memory-visuospatial abilities, procedural memory, executive-premotor functions, and processing speed. The elderly group showed reduced transitivity and average strength as well as increased global efficiency compared with the early-middle-age group. The late-middle-age group showed reduced global and local efficiency and modularity compared with the early-middle-age group. Nodal analyses showed the important role of executive functions and processing speed in explaining the differences between age groups. Conclusions: We identified a cognitive connectome that is rather stable during aging in cognitively healthy individuals, with the observed differences highlighting the important role of executive functions and processing speed. We translated the connectome concept from the neuroimaging field to cognitive data, demonstrating its potential to advance our understanding of the complexity of cognitive aging.

8.
Artículo en Inglés | MEDLINE | ID: mdl-34574596

RESUMEN

BACKGROUND: This study tested a theoretical model including key psychosocial factors that could be involved in the acceptance of different energy sources (gas, wind, and solar); Methods: Participants were 550 adult residents of the Canary Islands. Variables assessed were information and utility (normative motives), perceived risk and perceived benefits (gain motives), and negative and positive emotions (hedonic motives), with acceptance of each of the three energy sources as outcome variables; Results: It was found that renewable energies (wind and solar) had a higher degree of acceptance than non-renewable energy (gas). The proposed model satisfactorily explained the social acceptance of the three energy sources, although the psychosocial factors involved differed by energy source. The gain motives, mainly perceived benefits, were associated to a greater extent with gas energy, whereas normative motives, such as utility, and hedonic motives, such as positive emotions, had greater weight for renewables. Gender differences in gas energy were found. Information about renewable energy increased positive emotions and acceptance, whereas information about fossil fuel-based energy generated more negative emotions and perceived risk, decreasing acceptance; Conclusions: Utility, perceived benefits and positive emotions were involved on the acceptance of both renewables and non-renewables. The theoretical model tested seems to be useful for understanding the psychosocial functioning of the acceptance of the various energy sources as an essential aspect for the transition of non-renewable to renewable energies.


Asunto(s)
Energía Solar , Viento , Humanos , Distancia Psicológica , Energía Renovable , España
9.
Psicol. educ. (Madr.) ; 27(2): 115-122, JUNIO 2021. tab, graf
Artículo en Inglés | IBECS | ID: ibc-224768

RESUMEN

Mathematics anxiety (MA) has primarily been studied in adults and children over 8 years of age in English-speaking countries. Few studies have examined MA in younger children and in Spanish-speaking contexts due to the lack of suitable instruments. In the present study we examine the psychometric properties of the Child Mathematics Anxiety Questionnaire (CMAQ-R), an instrument widely used in English-speaking primary school children. A total of 810 Chilean second-grade students (50% boys) from different school types (26% public, 11% private, 63% private-subsidised) completed a Spanish version of CMAQ-R. The results showed adequate internal consistency in line with the original instrument. Confirmatory factor analyses showed that scores from the CMAQ-R version best fit a two correlated-factor structure, which was invariant across gender and school type. This study offers evidence regarding the usefulness of the CMAQ-R in contexts culturally different to the original and supports the multidimensionality of MA. (AU)


La ansiedad matemática (AM) se ha medido principalmente en adultos y niños mayores de 8 años en países anglófonos. Debido a la dificultad de encontrar instrumentos apropiados, pocos estudios han examinado la AM en niños menores y en contextos hispanoparlantes. En el presente estudio, examinamos las propiedades psicométricas del Cuestionario de Ansiedad Matemática (CMAQ-R), un instrumento ampliamente utilizado en la evaluación de AM en niños de escuela primaria de habla inglesa. Un total de 810 estudiantes chilenos de segundo grado (50% niños) de diferentes tipos de escuela (26% pública, 11% privada, 63% subsidiada) completaron una versión en español de CMAQ-R. Los resultados mostraron una adecuada consistencia interna, al igual que el instrumento original. Los análisis factoriales confirmatorios mostraron que las puntuaciones de la versión traducida de CMAQ-R se ajustan mejor a una estructura de dos factores correlacionados, que es invariante por género y tipo de escuela. Este estudio proporciona evidencia sobre la utilidad de CMAQ-R en contextos culturales diferentes y respalda la multidimensionalidad de AM. (AU)


Asunto(s)
Humanos , Masculino , Femenino , Niño , Ansiedad/diagnóstico , Ansiedad/prevención & control , Matemática , Hispánicos o Latinos/psicología , Encuestas y Cuestionarios , Chile , Emociones , Escala de Evaluación de la Conducta
10.
Arch Sex Behav ; 50(5): 1991-2006, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33846868

RESUMEN

The present study examined whether regulatory attitudes toward prostitution are related to agency attributed to prostitutes and moral outrage. A Spanish sample (N = 391, aged 18-53 years old) completed a questionnaire that included two separate parts. In the first part, participants answered a scale on regulatory attitudes toward prostitution; in the second part, after reading one of two scenarios, participants answered questions about agency and moral outrage. Results showed a different pattern in the link between regulatory attitudes and social perception when participants perceived prostitutes as victims of sexual slavery (Scenario 1) or as women who freely choose to sell sexual services (Scenario 2). This study provides empirical evidence of how some regulatory attitudes toward prostitution are linked to mind attributions and negative feelings toward sex workers, and how it depends on the type of prostitute who practices it. These findings contribute to our knowledge of attitudes toward prostitution, which could inform future policy-making.


Asunto(s)
Trabajadores Sexuales , Actitud , Femenino , Infecciones por VIH , Humanos , Políticas , Trabajo Sexual , Conducta Sexual
11.
Brain Sci ; 11(3)2021 Mar 18.
Artículo en Inglés | MEDLINE | ID: mdl-33803895

RESUMEN

Although the brain signatures of adaptive human parenting are well documented, the cortical features associated with maladaptive caregiving are underexplored. We investigated whether cortical thickness and surface area vary in a small group of mothers who had neglected their children (24 in the neglect group, NG) compared to a control group of mothers with non-neglectful caregiving (21 in the control group, CG). We also tested whether the cortical differences were related to dyadic mother-child emotional availability (EA) in a play task with their children and whether alexithymia involving low emotional awareness that characterizes the NG could play a role in the cortical-EA associations. Whole-brain analysis of the cortical mantle identified reduced cortical thickness in the right rostral middle frontal gyrus and an increased surface area in the right lingual and lateral occipital cortices for the NG with respect to the CG. Follow-up path analysis showed direct effects of the right rostral middle frontal gyrus (RMFG) on the emotional availability (EA) and on the difficulty to identify feelings (alexithymia factor), with a marginal indirect RMFG-EA effect through this factor. These preliminary findings extend existing work by implicating differences in cortical features associated with neglectful parenting and relevant to mother-child interactive bonding.

12.
Eur J Neurosci ; 53(10): 3378-3393, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33786931

RESUMEN

Many neuroimaging studies have shown that the hippocampus participates in a resting-state network called the default mode network. However, how the hippocampus connects to the default mode network, whether the hippocampus connects to other resting-state networks and how the different hippocampal subfields take part in resting-state networks remains poorly understood. Here, we examined these issues using the high spatial-resolution 7T resting-state fMRI dataset from the Human Connectome Project. We used data-driven techniques that relied on spatially-restricted Independent Component Analysis, Dual Regression and linear mixed-effect group-analyses based on participant-specific brain morphology. The results revealed two main activity hotspots inside the hippocampus. The first hotspot was located in an anterior location and was correlated with the somatomotor network. This network was subserved by co-activity in the CA1, CA3, CA4 and Dentate Gyrus fields. In addition, there was an activity hotspot that extended from middle to posterior locations along the hippocampal long-axis and correlated with the default mode network. This network reflected activity in the Subiculum, CA4 and Dentate Gyrus fields. These results show how different sections of the hippocampus participate in two known resting-state networks and how these two resting-state networks depend on different configurations of hippocampal subfield co-activity.


Asunto(s)
Hipocampo , Imagen por Resonancia Magnética , Hipocampo/diagnóstico por imagen , Humanos , Neuroimagen
13.
Sci Rep ; 11(1): 4356, 2021 02 23.
Artículo en Inglés | MEDLINE | ID: mdl-33623075

RESUMEN

Subjective cognitive decline (SCD) has been proposed as a risk factor for future cognitive decline and dementia. Given the heterogeneity of SCD and the lack of consensus about how to classify this condition, different operationalization approaches still need to be compared. In this study, we used the same sample of individuals to compare  different SCD operationalization approaches. We included 399 cognitively healthy individuals from a community-based cohort. SCD was assessed through nine questions about memory and non-memory subjective complaints. We applied four approaches to operationalize SCD: two hypothesis-driven approaches and two data-driven approaches. We characterized the resulting groups from each operationalization approach using multivariate methods on comprehensive demographic, clinical, cognitive, and neuroimaging data. We identified two main phenotypes: an amnestic phenotype characterized by an Alzheimer's Disease (AD) signature pattern of brain atrophy; and an anomic phenotype, which was mainly related to cerebrovascular pathology. Furthermore, language complaints other than naming helped to identify a subgroup with subclinical cognitive impairment and difficulties in activities of daily living. This subgroup also showed an AD signature pattern of atrophy. The identification of SCD phenotypes, characterized by different syndromic and biomarker profiles, varies depending on the operationalization approach used. In this study we discuss how these findings may be used in clinical practice and research.


Asunto(s)
Disfunción Cognitiva/psicología , Autoevaluación Diagnóstica , Psicometría/métodos , Encuestas y Cuestionarios/normas , Actividades Cotidianas , Anciano , Encéfalo/diagnóstico por imagen , Encéfalo/fisiología , Disfunción Cognitiva/diagnóstico , Femenino , Humanos , Lenguaje , Imagen por Resonancia Magnética , Masculino , Memoria , Persona de Mediana Edad , Psicometría/normas
14.
Psicothema (Oviedo) ; 32(4): 559-566, nov. 2020. tab, graf
Artículo en Inglés | IBECS | ID: ibc-201328

RESUMEN

BACKGROUND: The present study tested the factorial structure of the Schizotypal Personality Questionnaire (SPQ) in Mexican adults. Although this instrument has been validated in different cultural contexts, there are no studies to date that analyze its psychometric properties in a Mexican sample. METHOD: 307 adults completed the SPQ, seven participants were removed for being at high risk of psychosis. The final sample was made up of 300 participants (M = 34.58, SD = 13.77), of whom 62.8% were female. Raine's three-factor model and Stefanis et al.'s four-factor model were tested. RESULTS: The results indicated that both factor structures had a good fit to the data. However, the best evidence was for the three-factor solution. Configural, metric, and scalar invariance according to gender and age for the three-factor model was displayed. Further analyses showed women scored slightly higher in excessive social anxiety but this result was not statistically significant. Younger participants had higher scores on ideas of reference, excessive social anxiety, no close friends, and odd speech than the older group. CONCLUSIONS: These findings provide support for the use of the SPQ in the Mexican population


ANTECEDENTES: el presente estudio probó la estructura factorial del Cuestionario de personalidad esquizotípica (SPQ) en una muestra de adultos mexicanos. Aunque este instrumento ha sido validado en diferentes contextos culturales, no se han encontrado estudios que analicen las propiedades psicométricas en una muestra mexicana. MÉTODO: el SPQ fue cumplimentado por 307 adultos, aunque siete participantes fueron eliminados por estar en alto riesgo de psicosis. La muestra final incluyó 300 participantes (M = 34.58, SD = 13.77), de los cuales el 62,8% eran mujeres. Se probó la estructura factorial con tres factores, según la propuesta de Raine, y con cuatro factores según sugiere Stefanis et al. RESULTADOS: los resultados indicaron que ambas estructuras factoriales se ajustaban bien a los datos. Sin embargo, se encontró un mejor ajuste para la solución de tres factores. Este modelo demostró invariancia configuracional, métrica y escalar en función del sexo y la edad. Además, se encontró que las mujeres obtuvieron puntuaciones ligeramente más altas en ansiedad social, aunque no fue significativo. Los adultos jóvenes mostraron mayor puntuación en ideas de referencia, ansiedad social, sin amigos cercanos y discurso extraño comparados con el grupo de adultos mayores. CONCLUSIONES: estos hallazgos apoyan la utilidad del SPQ en población mexicana


Asunto(s)
Humanos , Masculino , Femenino , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Trastorno de la Personalidad Esquizotípica/diagnóstico , Psicometría/métodos , Trastornos Psicóticos/psicología , Trastorno de la Personalidad Esquizotípica/psicología , Encuestas y Cuestionarios , México , Pruebas de Personalidad , Análisis Factorial , Modelos Estructurales
15.
Psicothema ; 32(4): 559-566, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-33073762

RESUMEN

BACKGROUND: The present study tested the factorial structure of the Schizotypal Personality Questionnaire (SPQ) in Mexican adults. Although this instrument has been validated in different cultural contexts, there are no studies to date that analyze its psychometric properties in a Mexican sample. METHOD: 307 adults completed the SPQ, seven participants were removed for being at high risk of psychosis. The final sample was made up of 300 participants (M = 34.58, SD = 13.77), of whom 62.8% were female. Raine's three-factor model and Stefanis et al.'s four-factor model were tested. RESULTS: The results indicated that both factor structures had a good fit to the data. However, the best evidence was for the three-factor solution. Configural, metric, and scalar invariance according to gender and age for the three-factor model was displayed. Further analyses showed women scored slightly higher in excessive social anxiety but this result was not statistically significant. Younger participants had higher scores on ideas of reference, excessive social anxiety, no close friends, and odd speech than the older group. CONCLUSIONS: These findings provide support for the use of the SPQ in the Mexican population.


Asunto(s)
Trastorno de la Personalidad Esquizotípica , Adulto , Análisis Factorial , Femenino , Humanos , Personalidad , Psicometría , Reproducibilidad de los Resultados , Trastorno de la Personalidad Esquizotípica/diagnóstico , Encuestas y Cuestionarios
16.
Psicothema ; 32(1): 92-99, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31954421

RESUMEN

BACKGROUND: A number of contrasting hypotheses have been put forward concerning mathematical performance deficits in children with specific language impairment (SLI). However, debate as to the nature of this deficit continues. The present study analyzed whether the trajectories of SLI-children may be attributed to the use of symbolic vs. linguistic assessment tasks, or to a deficit in the magnitude system. METHOD: SLI-children (N=20) and typically achieving children (N=20) were monitored between kindergarten and first grade. Four tasks were designed, each with varying demands on language, symbolic, and domain-specific skills. RESULTS: The groups only differed in the trajectories of those numerical tasks involving high language demand. CONCLUSIONS: These findings indicate that SLI children present an early deficit in the development of numerical skills that require retrieval from long term memory and articulation of a phonological representation. Number skills involving greater language demand should be included as part of SLI early detection and intervention protocols.


Asunto(s)
Desarrollo Infantil/fisiología , Matemática , Memoria a Largo Plazo/fisiología , Trastorno Específico del Lenguaje/fisiopatología , Análisis de Varianza , Niño , Femenino , Humanos , Pruebas de Inteligencia , Masculino , Lectura
17.
Dev Psychopathol ; 32(4): 1534-1543, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-31845644

RESUMEN

The maternal brain undergoes adaptations to sensitive caregiving that are critical for infant well-being. We investigated structural alterations associated with neglectful caregiving and their effects on mother-child interactive behavior. High-resolution 3D volumetric images were obtained on 25 neglectful (NM) and 23 non-neglectful control (CM) mothers. Using voxel-based morphometry, we compared differences in gray and white matter (GM and WM, respectively) volume. Mothers completed an empathy scale and participated with their children in a play task (Emotional Availability Scale, EA). Neglectful mothers showed smaller GM volume in the right insula, anterior/middle cingulate (ACC/MCC), and right inferior frontal gyrus and less WM volume in bilateral frontal regions than did CM. A greater GM volume was observed in the right fusiform and cerebellum in NM than in CM. Regression analyses showed a negative effect of greater fusiform GM volume and a positive effect of greater right frontal WM volume on EA. Mediation analyses showed the role of emotional empathy in the positive effect of the insula and right inferior frontal gyrus and in the negative effect of the cerebellum on EA. Neglectful mothering involves alterations in emotional empathy-related areas and in frontal areas associated with poor mother-child interactive bonding, indicating how critical these areas are for sensitive caregiving.


Asunto(s)
Empatía , Sustancia Blanca , Encéfalo/diagnóstico por imagen , Niño , Femenino , Sustancia Gris , Humanos , Imagen por Resonancia Magnética , Madres
18.
Aging (Albany NY) ; 11(12): 4090-4106, 2019 06 22.
Artículo en Inglés | MEDLINE | ID: mdl-31232698

RESUMEN

Verbal fluency has been widely studied in cognitive aging. However, compensatory mechanisms that maintain its optimal performance with increasing age are not completely understood. Using cross-sectional data, we investigated differentiation and dedifferentiation processes in verbal fluency across the lifespan by analyzing the association between verbal fluency and numerous cognitive measures within four age groups (N=446): early middle-age (32-45 years), late middle-age (46-58 years), early elderly (59-71 years), and late elderly (72-84 years). ANCOVA was used to investigate the interaction between age and fluency modality. Random forest models were conducted to study the contribution of cognition to semantic, phonemic, and action fluency. All modalities declined with increasing age, but semantic fluency was the most vulnerable to aging. The most prominent reduction in performance was observed during the transition from middle-age to early elderly, when cognitive variables stopped contributing (differentiation), and new cognitive variables started contributing (dedifferentiation). Lexical access, processing speed, and executive functions were among the most contributing functions. We conclude that the association between age and verbal fluency is masked by age-specific influences of other cognitive functions. Differentiation and dedifferentiation processes can coexist. This study provides important data for better understanding of cognitive aging and compensatory processes.


Asunto(s)
Cognición , Envejecimiento Cognitivo , Pruebas Neuropsicológicas , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad
19.
PLoS One ; 14(5): e0216779, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31141531

RESUMEN

There is extensive evidence showing that bilinguals activate the lexical and the syntactic representations of both languages in a nonselective way. However, the extent to which the lexical and the syntactic levels of representations interact during second language (L2) sentence processing and how those interactions are modulated by L2 proficiency remain unclear. This paper aimed to directly address these issues by using an online technique (eye-tracking) that is highly sensitive to the lexical and syntactic processes involved in sentence reading. To that purpose, native-speakers of European Portuguese (EP) learning English as L2 at intermediate and advanced levels of proficiency were asked to silently read temporally ambiguous L2 relative clause (RC) sentences disambiguated with a High-Attachment (HA) or Low-Attachment (LA) strategy while their eye-movements were monitored. Since EP and English native speakers differ in the way they process and comprehend this syntactic structure (EP: HA, English: LA), HA preferences were used as a marker of L1 RC syntax interference. Additionally, the cognate status of the complex NP that preceded the RC was manipulated to further analyze how the lexical co-activation of both languages would also affect the syntactic representations of the non-target (L1) language. Results showed cognate facilitation in early and late reading time measures regardless of L2 proficiency, and also that the cognate status of the complex NP impacted L2 reading performance, particularly at lower levels of L2 proficiency. These findings provide compelling evidence for a bilingual reading system that seems to be highly dynamic and interactive not only within each level of processing, but, importantly, across levels of representation. They also suggested that, as the level of L2 proficiency increases, L1 RC syntax interference becomes stronger, in a syntactic parser that seems to operate in a more integrated and nonselective way, with both strategies being equally available to guide L2 reading comprehension. Results are discussed attending to the current models of bilingual syntactic processing.


Asunto(s)
Movimientos Oculares/fisiología , Aprendizaje/fisiología , Multilingüismo , Tiempo de Reacción/fisiología , Lectura , Adolescente , Adulto , Niño , Humanos
20.
Sci Rep ; 9(1): 6373, 2019 04 23.
Artículo en Inglés | MEDLINE | ID: mdl-31011201

RESUMEN

Neglectful mothering is one of the most common forms of childhood maltreatment, involving a severe disregard of the child's needs, yet little is known about its neural substrate. A child's needs are usually conveyed by signals of distress revealed by crying faces. We tested whether infant and adult crying faces are processed differently in two sociodemographically similar groups of Neglectful (NM) and non-neglectful Control Mothers (CM). We used functional brain imaging to analyze the BOLD response from 43 mothers (23 neglectful and 20 control) while viewing faces from infants and adults (crying and neutral). In NM as compared to CM, the BOLD responses to both infant and adult crying faces were significantly reduced in the cerebellum, lingual, fusiform, amygdala, hippocampus, parahippocampus, and inferior frontal gyrus. The reduced BOLD was also modulated by comorbid psychiatric symptoms. In the CM, frontal activation to infant versus adult crying faces was enhanced, whereas in the NM activation in the anterior cingulate cortex to infant crying was reduced compared to adult crying. The altered neural response to crying faces in NM, showing generic face and infant-specific face processing deficits, could underlie their characteristic poor social abilities as well as their poor response to infant needs, both affecting the caregiving role.


Asunto(s)
Llanto/fisiología , Cara , Sistema Límbico/fisiología , Madres , Percepción Visual/fisiología , Adulto , Preescolar , Femenino , Humanos , Lactante , Masculino , Estimulación Luminosa , Factores de Riesgo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...