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1.
JAMA ; 331(18): 1586-1587, 2024 May 14.
Artículo en Inglés | MEDLINE | ID: mdl-38630502

RESUMEN

A 41-year-old with type 1 diabetes had generalized weakness, muffled voice, and slurred speech. Neck computed tomography showed soft-tissue gas in the nasopharynx and prevertebral fascia; examination of sinus mucosal samples identified numerous broad, nonseptate right-angled hyphae and fruiting bodies. What is the diagnosis and what would you do next?


Asunto(s)
Diabetes Mellitus Tipo 1 , Rinitis , Sinusitis , Humanos , Diabetes Mellitus Tipo 1/complicaciones , Sinusitis/complicaciones , Rinitis/complicaciones , Enfermedad Aguda , Masculino , Adulto , Femenino , Rinosinusitis
2.
Curr Opin Pulm Med ; 30(3): 258-265, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38411158

RESUMEN

PURPOSE OF REVIEW: This review highlights the epidemiology, pathogenesis and clinical management of pulmonary infections caused by emerging fungal organisms. RECENT FINDINGS: Emerging fungal infections have arisen as a result of population and environmental changes. An enlarging pool of immunocompromised hosts on triazole antifungal prophylaxis has led to an increased incidence of non- Aspergillus molds, such as Fusarium , Scedosporium and Lomentospora spp. Advances in diagnostic capabilities led to the identification of the Emergomyces genus and non- dermatitidis Blastomyces species, which have a significant disease burden in Africa and the Middle East. Climate change has contributed to changing the distribution of previously confined endemic mycoses, like coccidioidomycosis and talaromycosis. These emerging organisms pose important diagnostic and therapeutic challenges. SUMMARY: Newly recognized pathogenic fungi and established endemic mycoses with expanding geographic boundaries have become important agents of pulmonary disease. There is a dearth of clinical evidence on the appropriate management of these infections.


Asunto(s)
Micosis , Neumonía , Humanos , Micosis/diagnóstico , Micosis/tratamiento farmacológico , Micosis/epidemiología , Hongos , Antifúngicos/uso terapéutico , Neumonía/tratamiento farmacológico , Pulmón
3.
Artículo en Inglés | MEDLINE | ID: mdl-36768116

RESUMEN

Sexualized drug use (SDU) has been identified as a health risk factor among gay, bisexual, and other men who have sex with men (GBMSM). This study aimed to analyze the associations between SDU frequency and a broad set of substances, motives, consequences, and self-perceptions. Sampling was conducted through an online survey. The final sample consisted of 185 GBMSM aged between 18 and 78 years old (mean age = 38.38, SD = 11.52) who engaged in SDU. We analyzed the frequency of SDU in terms of practicing it "once," "moderately" ("once a month or less" or "a few times a month"), or "frequently" (from "once a week" to "daily") during the previous 18 months. A questionnaire was administered through which sociodemographic variables, substances, reasons, consequences, and self-perceptions of SDU practice were analyzed. Participants who did so frequently were significantly more likely to use mephedrone, methamphetamine, and GHB/GBL than those who performed SDU less often (large effect sizes). In addition, habitual SDU was associated with motivations to achieve pleasurable emotions and sensations and manage negative feelings. Health implications, such as blackout moments, were also significantly related to frequent SDUs. Finally, those who practiced frequent SDU perceived it as a severe problem and wanted to control it. These data indicate the importance of raising awareness of chemsex as a public health problem among GBMSM. Specific identification, education, and prevention programs need to be strengthened to reduce the incidence of the most undesirable implications of SDU among GBMSM.


Asunto(s)
Infecciones por VIH , Minorías Sexuales y de Género , Trastornos Relacionados con Sustancias , Masculino , Humanos , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Homosexualidad Masculina/psicología , Sexo Inseguro , España , Conducta Sexual , Trastornos Relacionados con Sustancias/epidemiología , Autoimagen , Infecciones por VIH/epidemiología
4.
J Intell ; 12(1)2023 Dec 20.
Artículo en Inglés | MEDLINE | ID: mdl-38275977

RESUMEN

This study assesses cognitive abilities through video games for entertainment (Blek, Edge, and Unpossible) that were programmed from scratch to record players' behavior and the levels achieved in a sample without emotional problems and in one with emotional problems. The non-emotional-problem sample was recruited from three universities and two bachelor's degree programs. The emotional-problem sample was recruited from two outpatient centers. The participants in the emotional-problem sample completed reduced versions of the ability tests and video games, as required by their emotional problems. Three subtests of the Differential Aptitude Test that assessed abstract reasoning, visuospatial reasoning, and perceptual speed were selected as ability tests. All participants were required to complete a mental health questionnaire (PROMIS) and a brief questionnaire on their gaming habits and previous experience with the video games used. The results that were obtained showed good convergent validity of the video games as measures of cognitive abilities, and they showed that the behavior of players in the sample without emotional problems while playing predicted the level achieved in the Blek and Unpossible game fragments, but this was only true for Unpossible in the emotional-problem sample; finally, shorter versions of the Blek and Edge game fragments can be used because they maintain their good psychometric properties.

5.
Artículo en Inglés | MEDLINE | ID: mdl-35681972

RESUMEN

Sexualized drug use (SDU) has been poorly studied among heterosexuals. The purpose of the present study was to analyze the prevalence of and gender differences in types of substances, risky sexual practices, sexually transmitted infections (STIs), motivations, and psychological adjustment among heterosexual women and men who engage in SDU. The study sample consisted of 1181 heterosexuals (795 women) between 18 and 78 years old (mean age = 24.4, SD = 7.4). Approximately 12% of the participants had engaged in SDU. No differences were found in the prevalence of SDU between men and women. Alcohol, cannabis, and 3,4-methylenedioxy-methamphetamine (MDMA) were the substances most frequently used for sexual purposes. Men were significantly more likely to use MDMA, ecstasy, cocaine, and erectile dysfunction (ED) drugs, and they tended to have more sexual partners than women. Likewise, SDU was related to have more sexual partners, penetrative sex without a condom, practice a fetish, be diagnosed with syphilis, chlamydia, and others STIs, and present more depression symptoms (but not with more anxiety). In conclusion, SDU was associated with poorer physical and mental health. It is, therefore, necessary to design programs aimed at reducing the incidence of the consequences of SDU on the physical and mental health of both men and women. Moreover, programs that seek to understand why these individuals engage in SDU should be undertaken.


Asunto(s)
Infecciones por VIH , N-Metil-3,4-metilenodioxianfetamina , Enfermedades de Transmisión Sexual , Trastornos Relacionados con Sustancias , Adolescente , Adulto , Anciano , Estudios Transversales , Femenino , Infecciones por VIH/epidemiología , Heterosexualidad , Homosexualidad Masculina , Humanos , Masculino , Salud Mental , Persona de Mediana Edad , Motivación , Conducta Sexual , Parejas Sexuales , Enfermedades de Transmisión Sexual/epidemiología , España/epidemiología , Trastornos Relacionados con Sustancias/epidemiología , Adulto Joven
6.
Eat Weight Disord ; 27(5): 1809-1819, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34731454

RESUMEN

PURPOSE: Current study aimed to empirically test the Hemmingsson's theoretical model of childhood obesity which emphasizing the importance of family environment and the emotional distress of parents as influential variables in the emotional distress of the child and subsequent weight gain. This study also tested the hypothesis that the emotional distress of the child triggers a weight gain-inducing behavior (loss of control eating) to suppress negative emotions. METHODS: Families of 220 Spanish children participated in the study (28.2% normal, 35.1% overweight and 32.2% obesity), aged between 8 and 12. The evaluation included a clinical interview and a battery of questionnaires. RESULTS: Structural equation models were computed according to the steps proposed by theoretical model. Fit indices were acceptable suggesting that the data adequately fit the hypothesized model. Path coefficients in the final model were statistically significant showing a relationship between socioeconomic status, the emotional distress of parents, family environment, the emotional distress of children, loss of control eating and child's BMI Z-score. CONCLUSION: Considering this relation between emotional distress and child weight status, childhood obesity intervention programs may benefit from targeting family environment and the potential role that food is playing in the regulation of children's distress. LEVEL OF EVIDENCE: Level III: Cohort analytic study.


Asunto(s)
Obesidad Infantil , Índice de Masa Corporal , Niño , Conducta Alimentaria/psicología , Humanos , Análisis de Clases Latentes , Padres , Factores Socioeconómicos , Encuestas y Cuestionarios , Aumento de Peso
7.
Neuroscience ; 467: 81-90, 2021 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-34077771

RESUMEN

Biological (BA) and chronological (CA) age may or may not fit. The available evidence reveals remarkable individual differences in the overlap/mismatch between BA and CA. Increased mismatch can be interpreted as delayed (BA/CA < 1) or accelerated biological aging (BA/CA > 1). Body and brain health are correlated and both predict aging outcomes associated with physical and mental fitness. Moreover, research has shown that older brain age at midlife correlates negatively with cognitive ability measured in early childhood, which suggests early life predisposition to accelerated aging in adulthood. Under this framework, here we test if increased cognitive ability is associated with delayed brain aging, analyzing structural MRI data of 188 individuals, sixty of whom were recruited from MENSA, an association comprising individuals who obtained cognitive ability scores in the top 2 percent of the population. These high ability individuals (HCA) showed an average advantage of 33 IQ points, on a fluid reasoning test they completed for this research, over those other recruited because of their average cognitive ability (ACA). Next, brain age was computed at the individual level for two distinguishable neocortical features (thickness and surface area) according to models trained in an independent large-scale sample of 2377 individuals. Results revealed a stronger pattern of accelerated brain aging in HCA compared to ACA individuals for thickness, while the opposite pattern was suggested for surface area. The findings align well with the greater relevance of individual differences in cortical surface area for enhancing our understanding of cognitive differences at the brain level.


Asunto(s)
Envejecimiento , Neocórtex , Adulto , Encéfalo/diagnóstico por imagen , Preescolar , Cognición , Humanos , Individualidad , Imagen por Resonancia Magnética
8.
Brain Struct Funct ; 226(3): 845-859, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33474577

RESUMEN

Resting state functional connectivity research has shown that general cognitive ability (GCA) is associated with brain resilience to targeted and random attacks (TAs and RAs). However, it remains to be seen if the finding generalizes to structural connectivity. Furthermore, individuals showing performance levels at the very high area of the GCA distribution have not yet been analyzed in this regard. Here we study the relation between TAs and RAs to structural brain networks and GCA. Structural and diffusion-weighted MRI brain images were collected from 189 participants: 60 high cognitive ability (HCA) and 129 average cognitive ability (ACA) individuals. All participants completed a standardized fluid reasoning ability test and the results revealed an average HCA-ACA difference equivalent to 33 IQ points. Automated parcellation of cortical and subcortical nodes was combined with tractography to achieve an 82 × 82 connectivity matrix for each subject. Graph metrics were derived from the structural connectivity matrices. A simulation approach was used to evaluate the effects of recursively removing nodes according to their network centrality (TAs) versus eliminating nodes at random (RAs). HCA individuals showed greater network integrity at baseline and prior to network collapse than ACA individuals. These effects were more evident for TAs than RAs. The networks of HCA individuals were less degraded by the removal of nodes corresponding to more complex information processing stages of the PFIT network, and from removing nodes with larger empirically observed centrality values. Analyzed network features suggest quantitative instead of qualitative differences at different levels of the cognitive ability distribution.


Asunto(s)
Encéfalo/fisiopatología , Cognición/fisiología , Red Nerviosa/fisiopatología , Vías Nerviosas/fisiopatología , Conectoma/métodos , Imagen de Difusión por Resonancia Magnética/métodos , Femenino , Humanos , Masculino , Modelos Neurológicos , Solución de Problemas , Descanso/fisiología
9.
Artículo en Inglés | MEDLINE | ID: mdl-33467591

RESUMEN

Emotional intelligence (EI) is related to better performance in sports. To measure this construct, many tools have been developed and validated in the sports context. However, these tools are based on an individual's ability to manage their own emotions, but do not consider the emotions of the rest of the team (teammates, coaches, etc.). In this regard, the Workgroup Emotional Intelligence Profile short version (WEIP-S) is a self-reported measure designed to measure the EI of individuals who are part of a team. The aim of this study was to validate the WEIP-S structure to measure EI in the sports context, and to analyze the psychometric properties of this tool in the sample in terms of validity and reliability. A cross-sectional study was conducted among 273 athletes to examine the reliability, factor structure, and evidence of validity (convergent, discriminant, nomological, and concurrent) of the WEIP-S. Confirmatory factor analysis showed that the original four-factor structure is the most appropriate for the sports context. Composite reliability was adequate for all factors except management of one's own emotions, which also showed poor convergent validity. Evidence of convergent, discriminant, and nomological validity are discussed. This study represents an advance in the use of specific scales to measure EI in the sports context.


Asunto(s)
Inteligencia Emocional , Estudios Transversales , Análisis Factorial , Humanos , Psicometría , Reproducibilidad de los Resultados
10.
Aten. prim. (Barc., Ed. impr.) ; 52(4): 250-257, abr. 2020. tab
Artículo en Español | IBECS | ID: ibc-197233

RESUMEN

OBJETIVO: Comparar los niveles de actividad física y sedentarismo en niños con obesidad y normopeso, y analizar el nivel de actividad física del cuidador principal junto con el ambiente familiar. DISEÑO: Estudio caso-control. Emplazamiento: Un centro de salud y colegios de la Comunidad de Madrid. PARTICIPANTES: Un total de 50 niños con obesidad entre 8 y 12 años (GO; P > 97) y sus madres, fueron emparejados por edad, sexo y estatus socioeconómico de sus padres (1:1) con 50 niños con normopeso (GN; P < 85). MEDICIONES PRINCIPALES: Los niveles de actividad física se midieron por acelerometría (ActiGraph GT3X), la actividad física del cuidador principal con el cuestionario de actividad física (IPAQ) y el ambiente con el cuestionario de ambiente familiar (HES-S). RESULTADOS: El grupo GO presentó menos actividad física de tipo vigoroso al compararse con el grupo GN. La actividad física vigorosa en el GO se asoció al modelado y las políticas parentales respecto a la actividad física. Un análisis de regresión múltiple muestra que el 21% de la varianza del estatus de peso de los niños se explicaba por la actividad física vigorosa y el índice de masa corporal materno. CONCLUSIONES: Los niveles de actividad física vigorosa y el ambiente familiar difieren entre los niños con obesidad y normopeso. Por lo tanto, es importante seguir trabajando la conciencia de enfermedad y la promoción de hábitos saludables desde Atención Primaria y el contexto escolar e institucional


OBJECTIVE: The aim of this study is to compare the levels of physical activity and sedentary behaviours in children with obesity and normal weight through accelerometer measures, and analyze the family environment related to physical activity. DESIGN: Case-control study. LOCATION: A health center and colleges of the Community of Madrid. PARTICIPANTS: A total of 50 obese children between 8 and 12 years of age (P > 97) and their mothers were matched by age, sex and socioeconomic status of their parents (1: 1) with 50 children with normopeso (GN; P < 85). MAIN MEASUREMENTS: Physical activity levels were measured by accelerometer (ActiGraph GT3X), levels of physical activity of the primary caregiver were measured through physical activity questionnaire (IPAQ) and the environment in relation to the physical activity was measured by the Home Environment Scale (HES-S). RESULTS: The group GO showed less vigorous physical activity than their peers in the GN group. Vigorous physical activity in the GO group was associated with modeling and parental policies regarding physical activity. A multiple regression analysis revealed that 21% of the variance of weight status of children was explained by sex, vigorous physical activity and maternal body mass index. CONCLUSIONS: The levels of vigorous physical activity and the family environment differ between children with obesity and normal weight. Therefore, it is important to continue working on the awareness of illness and the promotion of healthy habits from Primary Care and the school and institutional context


Asunto(s)
Humanos , Masculino , Femenino , Niño , Conducta Sedentaria , Actividad Motora , Obesidad , Padres , Estudios de Casos y Controles , Factores Socioeconómicos , Encuestas y Cuestionarios , Acelerometría
11.
Aten Primaria ; 52(4): 250-257, 2020 04.
Artículo en Español | MEDLINE | ID: mdl-30898477

RESUMEN

OBJECTIVE: The aim of this study is to compare the levels of physical activity and sedentary behaviours in children with obesity and normal weight through accelerometer measures, and analyze the family environment related to physical activity. DESIGN: Case-control study. LOCATION: A health center and colleges of the Community of Madrid. PARTICIPANTS: A total of 50 obese children between 8 and 12 years of age (P > 97) and their mothers were matched by age, sex and socioeconomic status of their parents (1: 1) with 50 children with normopeso (GN; P < 85). MAIN MEASUREMENTS: Physical activity levels were measured by accelerometer (ActiGraph GT3X), levels of physical activity of the primary caregiver were measured through physical activity questionnaire (IPAQ) and the environment in relation to the physical activity was measured by the Home Environment Scale (HES-S). RESULTS: The group GO showed less vigorous physical activity than their peers in the GN group. Vigorous physical activity in the GO group was associated with modeling and parental policies regarding physical activity. A multiple regression analysis revealed that 21% of the variance of weight status of children was explained by sex, vigorous physical activity and maternal body mass index. CONCLUSIONS: The levels of vigorous physical activity and the family environment differ between children with obesity and normal weight. Therefore, it is important to continue working on the awareness of illness and the promotion of healthy habits from Primary Care and the school and institutional context.


Asunto(s)
Ejercicio Físico , Composición Familiar , Obesidad Infantil/epidemiología , Conducta Sedentaria , Actigrafía/estadística & datos numéricos , Índice de Masa Corporal , Peso Corporal , Cuidadores , Estudios de Casos y Controles , Niño , Femenino , Humanos , Masculino , Madres , Responsabilidad Parental , Análisis de Regresión , Factores Sexuales , Clase Social , España/epidemiología
12.
Psicothema (Oviedo) ; 31(3): 229-238, ago. 2019. graf, tab
Artículo en Inglés | IBECS | ID: ibc-185348

RESUMEN

Background: Are cognitive and biological variables useful for predicting future behavioral outcomes?. Method: In two independent groups, we measured a set of cognitive (fluid and crystallized intelligence, working memory, and attention control) and biological (cortical thickness and cortical surface area) variables on two occasions separated by six months, to predict behavioral outcomes of interest (performance on an adaptive version of the n-back task) measured twelve and eighteen months later. We followed three stages: discovery, validation, and generalization. In the discovery stage, cognitive/biological variables and the behavioral outcome of interest were assessed in a group of individuals (in-sample). In the validation stage, the cognitive and biological variables were related with a parallel version of the behavioral outcome assessed several months later. In the generalization stage, the validation findings were tested in an independent group of individuals (out-of-sample). Results: The key finding revealed that cortical surface area variations within the right dorsolateral prefrontal cortex predict the behavioral outcome of interest in both groups, whereas the cognitive variables failed to show reliable predictive validity. Conclusions: Individual differences in biological variables might predict future behavioral outcomes better than cognitive variables concurrently correlated with these behavioral outcomes


Antecedentes: ¿Predicen las variables cognitivas y biológicas el futuro desempeño cognitivo? Método: en dos grupos independientes de participantes se miden variables cognitivas (inteligencia fluida y cristalizada, memoria operativa y control atencional) y biológicas (grosor y superficie cortical) en dos ocasiones separadas por seis meses, para predecir el desempeño en la tarea n-back valorado doce y dieciocho meses después. Se completan tres etapas: descubrimiento, validación y generalización. En la de descubrimiento se valoran en un grupo de individuos las variables cognitivas/biológicas y el desempeño a predecir. En la de validación, se relacionan las mismas variables con una versión paralela de la n-back completada meses después. En la de generalización, los resultados de la validación se replican en un grupo independiente de individuos. Resultados: las variaciones de superficie cortical en la corteza dorsolateral prefrontal derecha predicen el desempeño cognitivo en los dos grupos independientes de individuos, mientras que las variables cognitivas no contribuyen a la predicción del desempeño futuro. Conclusiones: las diferencias individuales en determinadas variables biológicas predicen el desempeño cognitivo mejor que las variables cognitivas que correlacionan concurrentemente con ese desempeño


Asunto(s)
Humanos , Femenino , Atención/fisiología , Conducta , Cognición/fisiología , Inteligencia/fisiología , Memoria a Corto Plazo/fisiología , Corteza Prefrontal/anatomía & histología , Variación Biológica Individual , Mapeo Encefálico , Estudios Controlados Antes y Después/métodos , Lateralidad Funcional , Generalización Psicológica , Imagen por Resonancia Magnética , Corteza Prefrontal/diagnóstico por imagen , Pruebas Psicológicas , Reproducibilidad de los Resultados , Factores de Tiempo
13.
Psicothema ; 31(3): 229-238, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31292036

RESUMEN

BACKGROUND: Are cognitive and biological variables useful for predicting future behavioral outcomes? METHOD: In two independent groups, we measured a set of cognitive (fluid and crystallized intelligence, working memory, and attention control) and biological (cortical thickness and cortical surface area) variables on two occasions separated by six months, to predict behavioral outcomes of interest (performance on an adaptive version of the n-back task) measured twelve and eighteen months later. We followed three stages: discovery, validation, and generalization. In the discovery stage, cognitive/biological variables and the behavioral outcome of interest were assessed in a group of individuals (in-sample). In the validation stage, the cognitive and biological variables were related with a parallel version of the behavioral outcome assessed several months later. In the generalization stage, the validation findings were tested in an independent group of individuals (out-of-sample). RESULTS: The key finding revealed that cortical surface area variations within the right dorsolateral prefrontal cortex predict the behavioral outcome of interest in both groups, whereas the cognitive variables failed to show reliable predictive validity. CONCLUSIONS: Individual differences in biological variables might predict future behavioral outcomes better than cognitive variables concurrently correlated with these behavioral outcomes.


Asunto(s)
Atención/fisiología , Conducta , Cognición/fisiología , Inteligencia/fisiología , Memoria a Corto Plazo/fisiología , Corteza Prefrontal/anatomía & histología , Variación Biológica Individual , Mapeo Encefálico , Estudios Controlados Antes y Después/métodos , Femenino , Predicción , Lateralidad Funcional , Generalización Psicológica , Humanos , Imagen por Resonancia Magnética , Corteza Prefrontal/diagnóstico por imagen , Pruebas Psicológicas , Reproducibilidad de los Resultados , Factores de Tiempo
14.
Neuroimage ; 199: 172-183, 2019 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-31154047

RESUMEN

Although cognitive neuroscience has made remarkable progress in understanding the neural foundations of goal-directed behavior and decision making, neuroscience research on decision making competence, the capacity to resist biases in human judgment and decision making, remain to be established. Here, we investigated the cognitive and neural mechanisms of decision making competence in 283 healthy young adults. We administered the Adult Decision Making Competence battery to assess the respondent's capacity to resist standard biases in decision making, including: (1) resistance to framing, (2) recognizing social norms, (3) over/under confidence, (4) applying decision rules, (5) consistency in risk perception, and (6) resistance to sunk costs. Decision making competence was assessed in relation to core facets of intelligence, including measures of crystallized intelligence (Shipley Vocabulary), fluid intelligence (Figure Series), and logical reasoning (LSAT). Structural equation modeling was applied to examine the relationship(s) between each cognitive domain, followed by an investigation of their association with individual differences in cortical thickness, cortical surface area, and cortical gray matter volume as measured by high-resolution structural MRI. The results suggest that: (i) decision making competence is associated with cognitive operations for logical reasoning, and (ii) these convergent processes are associated with individual differences within cortical regions that are widely implicated in cognitive control (left dACC) and social decision making (right superior temporal sulcus; STS). Our findings motivate an integrative framework for understanding the neural mechanisms of decision making competence, suggesting that individual differences in the cortical surface area of left dACC and right STS are associated with the capacity to overcome decision biases and exhibit competence in decision making.


Asunto(s)
Corteza Cerebral/anatomía & histología , Función Ejecutiva/fisiología , Individualidad , Inteligencia/fisiología , Percepción Social , Pensamiento/fisiología , Adulto , Corteza Cerebral/diagnóstico por imagen , Toma de Decisiones/fisiología , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Modelos Estadísticos , Adulto Joven
15.
Dev Psychol ; 55(6): 1338-1352, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30829509

RESUMEN

Throughout childhood and adolescence, humans experience marked changes in cortical structure and cognitive ability. Cortical thickness and surface area, in particular, have been associated with cognitive ability. Here we ask the question: What are the time-related associations between cognitive changes and cortical structure maturation. Identifying a developmental sequence requires multiple measurements of these variables from the same individuals across time. This allows capturing relations among the variables and, thus, finding whether (a) developmental cognitive changes follow cortical structure maturation, (b) cortical structure maturation follows cognitive changes, or (c) both processes influence each other over time. Four hundred and thiry children and adolescents (age range = 6.01-22.28 years) completed the Wechsler Abbreviated Scale of Intelligence battery and were MRI scanned at 3 time points separated by ≈2 years (Mage T1 = 10.60, SD = 3.58; Mage T2 = 12.63, SD = 3.62; Mage T3 = 14.49, SD = 3.55). Latent change score models were applied to quantify age-related relationships among the variables of interest. Our results indicate that cortical and cognitive changes related to each other reciprocally. Specifically, the magnitude or rate of the change in each variable at any occasion-and not the previous level-was predictive of later changes. These results were replicated for brain regions selected according to the coordinates identified in the Basten et al.'s (2015) meta-analysis, to the parieto-frontal integration theory (Jung & Haier, 2007) and to the whole cortex. Potential implications regarding brain plasticity and cognitive enhancement are discussed. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Asunto(s)
Corteza Cerebral/crecimiento & desarrollo , Cognición/fisiología , Imagen por Resonancia Magnética , Adolescente , Adulto , Encéfalo , Niño , Femenino , Humanos , Pruebas de Inteligencia/estadística & datos numéricos , Estudios Longitudinales , Masculino , Adulto Joven
16.
Psychiatry Res ; 272: 483-490, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30611968

RESUMEN

Despite the literature suggesting that body dissatisfaction is increasing among males, only few measures on specific body image concerns in men have been validated in Spanish male populations. The aim of this study was to reassess the factor structure of the Spanish versions of the Muscle Dysmorphic Disorder Inventory (MMDI) and the Adonis Complex Questionnaire (ACQ). A cross-sectional study was conducted among 298 Sport Sciences male students to examine: reliability, the factorial structure, and several evidences of validity -concurrent and convergent- of both scales. The questionnaires present adequate reliability. The three-factor structure proposed for the MMDI was replicated. Nevertheless, the confirmatory factor analysis supports a second-order factor structure for the ACQ instead of the three-factor structure proposed. Moreover, the MDDI shows greater association than ACQ with the variables studied. This study represents an advance in the use of adequate and reliable scales of body image tools in the Hispanic population.


Asunto(s)
Trastorno Dismórfico Corporal/diagnóstico , Trastorno Dismórfico Corporal/psicología , Imagen Corporal/psicología , Pruebas Neuropsicológicas/normas , Estudiantes/psicología , Encuestas y Cuestionarios/normas , Adolescente , Adulto , Trastorno Dismórfico Corporal/epidemiología , Estudios Transversales , Emociones/fisiología , Análisis Factorial , Humanos , Masculino , Músculo Esquelético/fisiología , Psicometría , Reproducibilidad de los Resultados , España/epidemiología , Adulto Joven
17.
Retina ; 39(6): 1083-1090, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29474306

RESUMEN

PURPOSE: To report 3-year results of a randomized single-blind controlled trial of intravitreal ranibizumab combined with oral docosahexaenoic acid (DHA) supplementation versus ranibizumab alone in patients with diabetic macular edema. METHODS: There were 26 patients (31 eyes) in the DHA group and 29 (38 eyes) in the control group. Ranibizumab (0.5 mg) was administered monthly for the first 4 months followed by a pro re nata (PRN) regimen. In the experimental group, patients received oral DHA supplementation (1,050 mg/day) (Brudyretina 1.5 g). RESULTS: At 36 months, mean decrease of central subfield macular thickness was higher in the DHA-supplementation group than in controls (275 ± 50 µm vs. 310 ± 97 µm) with significant differences at Months 25, 30, 33, and 34. Between-group differences in best-corrected visual acuity were not found, but the percentages of ETRDS gains >5 and >10 letters were higher in the DHA-supplementation group. Differences serum HbA1c, plasma total antioxidant capacity values, erythrocyte DHA content, and serum IL-6 levels were all significant in favor of the DHA-supplementation group. CONCLUSION: The addition of a high-rich DHA dietary supplement to intravitreal ranibizumab was effective to achieve better sustained improvement of central subfield macular thickness outcomes after 3 years of follow-up as compared with intravitreal ranibizumab alone.


Asunto(s)
Antioxidantes/administración & dosificación , Retinopatía Diabética/complicaciones , Ácidos Docosahexaenoicos/administración & dosificación , Edema Macular/tratamiento farmacológico , Ranibizumab/administración & dosificación , Agudeza Visual , Administración Oral , Anciano , Anciano de 80 o más Años , Inhibidores de la Angiogénesis/administración & dosificación , Retinopatía Diabética/diagnóstico , Retinopatía Diabética/tratamiento farmacológico , Relación Dosis-Respuesta a Droga , Quimioterapia Combinada , Femenino , Estudios de Seguimiento , Humanos , Inyecciones Intravítreas , Edema Macular/diagnóstico , Edema Macular/etiología , Masculino , Persona de Mediana Edad , Método Simple Ciego , Factores de Tiempo , Tomografía de Coherencia Óptica/métodos , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores
18.
Hum Brain Mapp ; 39(6): 2664-2672, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29516582

RESUMEN

While an extensive literature in decision neuroscience has elucidated the neurobiological foundations of decision making, prior research has focused primarily on group-level effects in a sample population. Due to the presence of inherent differences between individuals' cognitive abilities, it is also important to examine the neural correlates of decision making that explain interindividual variability in cognitive performance. This study therefore investigated how individual differences in decision making competence, as measured by the Adult Decision Making Competence (A-DMC) battery, are related to functional brain connectivity patterns derived from resting-state fMRI data in a sample of 304 healthy participants. We examined connectome-wide associations, identifying regions within frontal, parietal, temporal, and occipital cortex that demonstrated significant associations with decision making competence. We then assessed whether the functional interactions between brain regions sensitive to decision making competence and seven intrinsic connectivity networks (ICNs) were predictive of specific facets of decision making assessed by subtests of the A-DMC battery. Our findings suggest that individual differences in specific facets of decision making competence are mediated by ICNs that support executive, social, and perceptual processes, and motivate an integrative framework for understanding the neural basis of individual differences in decision making competence.


Asunto(s)
Mapeo Encefálico , Encéfalo/diagnóstico por imagen , Toma de Decisiones/fisiología , Individualidad , Imagen por Resonancia Magnética , Competencia Mental/psicología , Adolescente , Adulto , Conectoma , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Masculino , Modelos Estadísticos , Oxígeno/sangre , Normas Sociales , Adulto Joven
19.
J Intell ; 6(1)2018 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-31162438

RESUMEN

Research aimed at testing whether short-term training programs can enhance intelligence is mainly concentrated on behavior. Expected positive effects are found sometimes, but the evidence is far from conclusive. It is assumed that training must evoke changes in the brain for observing genuine improvements in behavior. However, behavioral and brain data are seldom combined in the same study. Here we present one example of this latter type of research summarizing, discussing, and integrating already published results. The training program was based on the adaptive dual n-back task, and participants completed a comprehensive battery measuring fluid and crystallized ability, along with working memory and attention control, before and after training. They were also submitted to MRI scanning at baseline and post-training. Behavioral results revealed positive effects for visuospatial processing across cognitive domains. Brain imaging data were analyzed by longitudinal voxel-based morphometry, tensor-based morphometry, surface-based morphometry, and structural connectivity. The integration of these multimodal brain results provides clues about those observed in behavior. Our findings, along with previous research and current technological advances, are considered from the perspective that we now live in ideal times for (a) moving from the group to the individual and (b) developing personalized training programs.

20.
Cogn Sci ; 42(2): 646-663, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29023964

RESUMEN

Building on evidence for embodied representations, we investigated whether Spanish spatial terms map onto the NEAR/FAR perceptual division of space. Using a long horizontal display, we measured congruency effects during the processing of spatial terms presented in NEAR or FAR space. Across three experiments, we manipulated the task demands in order to investigate the role of endogenous attention in linguistic and perceptual space mapping. We predicted congruency effects only when spatial properties were relevant for the task (reaching estimation task, Experiment 1) but not when attention was allocated to other features (lexical decision, Experiment 2; and color, Experiment 3). Results showed faster responses for words presented in Near-space in all experiments. Consistent with our hypothesis, congruency effects were observed only when a reaching estimate was requested. Our results add important evidence for the role of top-down processing in congruency effects from embodied representations of spatial terms.


Asunto(s)
Atención/fisiología , Toma de Decisiones/fisiología , Lingüística , Percepción Espacial/fisiología , Adolescente , Adulto , Femenino , Humanos , Masculino , Tiempo de Reacción/fisiología , España , Estudiantes/psicología , Adulto Joven
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