Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 39
Filtrar
1.
Artigo em Inglês | MEDLINE | ID: mdl-38767060

RESUMO

AIM: Cognitive disturbances typically precede the onset of overt psychotic symptoms and represent a neurobiological marker for psychosis risk that is also associated with poor functional outcomes. The Measure of Insight into Cognition-Self Report (MIC-SR) is a widely used 12-item questionnaire that assesses the perceived frequency of cognitive impairment in the domains of executing functioning, attention, and memory. However, the MIC-SR is not available in Spanish, one of the most widely spoken languages worldwide. The present study aimed to provide a Spanish version of the MIC-SR and examine its psychometric properties in psychosis-risk and non-clinical Mexican young adults. METHODS: The sample comprised 621 participants who completed a battery of self-report measures via an online survey. Of the participants, 478 were non-clinical, and 143 met the screening criteria for a clinical high-risk for psychosis (CHR-positive). RESULTS: Confirmatory Factor Analyses supported a one-factor model, consistent with the findings for the original MIC-SR. The results showed adequate fit indices for the general model and the independent models for both groups, with high Cronbach's alpha coefficients. Furthermore, the CHR-positive group showed more frequent subjective cognitive problems on each of the 12 items, higher total scores, and higher average frequency than the non-clinical group. CONCLUSION: To our knowledge, this is the first translation of the MIC-SR into Spanish. Using the MIC-SR at the CHR stage may contribute to our understanding of cognitive processes associated with the onset of a psychotic disorder and provide valuable information in the context of detection and early intervention efforts.

2.
J Natl Med Assoc ; 115(5): 475-481, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37550160

RESUMO

OBJECTIVE: Children with sickle cell disease (SCD) are at risk for neurocognitive deficits that can affect school performance, and psychosocial functioning. The aim of this study was to assess the academic performance of school-aged children with SCD in Jamaica compared to their school peers. METHOD: A cross-sectional survey of academic performance was done in a group of children 11 to 13 years of age, using a standardized state administered examination, the Grade Six Achievement Test (GSAT), covering 5 subjects. Scores were obtained from the Ministry of Education (MOE) for eligible children with SCD, as well as mean scores with standard deviation for unaffected classmates by gender. Socio-demographic and clinical data were obtained from our sickle cell clinic database and an interview administered questionnaire. RESULTS: Sixty-four children satisfied eligibility criteria. Children with SCD had lower percentage scores and significantly lower mean z-scores for 4 of 5 subjects (p < 0.05). Males had significantly lower mean z-scores compared with females. Thirty-seven children (57.8%) were classified as underperformers. Haemoglobin level was a significant predictor of subject score rank. CONCLUSION: Children with SCD in Jamaica perform worse in standardized school examinations than their class peers with boys being particularly vulnerable.


Assuntos
Desempenho Acadêmico , Anemia Falciforme , Masculino , Feminino , Humanos , Criança , Jamaica/epidemiologia , Estudos Transversais , Anemia Falciforme/complicações , Anemia Falciforme/epidemiologia , Escolaridade
3.
J Pediatr ; 260: 113477, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37187287

RESUMO

OBJECTIVE: To investigate the long-term impact of pediatric intensive care unit (PICU) admission on daily life functioning while exploring the potential mediating role of neurocognitive outcome. STUDY DESIGN: This cross-sectional observational study compared children aged 6-12 years with previous PICU admission (age ≤1 year) for bronchiolitis requiring mechanical ventilation ("patient group," n = 65) to demographically comparable healthy peers ("control group," n = 76). The patient group was selected because bronchiolitis is not expected to affect neurocognitive functioning in itself. Assessed daily life outcome domains were behavioral and emotional functioning, academic performance, and health-related quality of life (QoL). The role of neurocognitive outcomes in the relationship between PICU admission and daily life functioning was assessed by mediation analysis. RESULTS: The patient group did not differ from the control group regarding behavioral and emotional functioning but performed poorer on academic performance and school-related QoL (Ps ≤ .04, d = -0.48 to -0.26). Within the patient group, lower full-scale IQ (FSIQ) was associated with poorer academic performance and school-related QoL (Ps ≤ .02). Poorer verbal memory was associated with poorer spelling performance (P = .002). FSIQ mediated the observed effects of PICU admission on reading comprehension and arithmetic performance. CONCLUSIONS: Children admitted to the PICU are at risk for long-term adverse daily life outcomes in terms of academic performance and school-related QoL. Findings suggest that lower intelligence may contribute to academic difficulties after PICU admission. Findings underline the importance of monitoring daily life and neurocognitive functioning after PICU admission.


Assuntos
Bronquiolite , Qualidade de Vida , Criança , Humanos , Lactente , Seguimentos , Estudos Transversais , Bronquiolite/complicações , Unidades de Terapia Intensiva Pediátrica
4.
Pediatr Exerc Sci ; 35(4): 232-238, 2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37172952

RESUMO

PURPOSE: Compare tracking groups with cognitive control functions and plasma brain-derived neurotrophic factors concentrations from childhood to adolescence. METHODS: This is a prospective study with 3 years of follow-up. At baseline, data from 394 individuals were collected (11.7 y), and data were obtained from 134 adolescents (14.9 y) at the 3-year follow-up. At both time points, anthropometric and maximal oxygen uptake data were collected. Cardiorespiratory fitness (CRF) groups were classified into high or low CRF. At follow-up, cognitive outcomes were collected via the Stroop and Corsi block test; plasma brain-derived neurotrophic factors concentrations were also analyzed. RESULTS: Comparisons demonstrated that maintaining high CRF over 3 years results in shorter reaction time, better inhibitory control, and higher working memory values. Likewise, the group that moved from low to high CRF over 3 years presented better reaction time. Plasma brain-derived neurotrophic factors concentrations were higher for the group that increased its CRF over the 3 years in relation to the low-low group (90.58 pg·mL-1; P = .004). However, after scaling by an allometric approach, differences were only found for reaction time and working memory between high-high and high-low groups. CONCLUSION: Maintaining high CRF over 3 years was positively related to reaction time and working memory in relation to adolescents that decreased their levels of CRF.


Assuntos
Aptidão Cardiorrespiratória , Humanos , Adolescente , Criança , Aptidão Cardiorrespiratória/psicologia , Estudos Prospectivos , Cognição , Memória de Curto Prazo , Fatores de Crescimento Neural
5.
Eur Arch Psychiatry Clin Neurosci ; 273(5): 1183-1190, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36662294

RESUMO

Recent research has focused on neurological soft signs (NSS) in bipolar disorder (BD), but there is still scarce evidence on their correlates with other relevant variables. The aim of this study was to explore the association between NSS and clinical demographic, neurocognitive, and functional variables. Eighty-eight euthymic BD patients were included in whom NSS were assessed using the Neurological Evaluation Scale. All subjects performed an extensive neurocognitive battery selected to assess premorbid IQ, attention, language, verbal memory, and executive functions. Psychosocial outcomes were assessed by means of the Functioning Assessment Short Test. Among the demographical variables, NSS tended to be negatively associated with years of education and increased with age. Likewise, NSS were higher in BD type I than in BD type II, but independent of age at illness onset and number of previous affective episodes. There was a negative correlation between NSS and premorbid IQ, as well as with performance in attention, language, and executive functions. Results tended to be unchanged when controlled for potential confounders. Although NSS were associated with poor psychosocial functioning in the bivariate analysis, when added to a multiple regression model including neurocognition, these neurological features did not significantly contribute to the variance of the functional outcome. Our findings contribute to a better characterization of NSS in BD; their potential clinical and theoretical implications are discussed in the manuscript.


Assuntos
Transtorno Bipolar , Humanos , Transtorno Bipolar/complicações , Transtorno Bipolar/diagnóstico , Transtorno Bipolar/psicologia , Testes Neuropsicológicos , Função Executiva , Memória , Atenção
6.
Brain Sci ; 12(12)2022 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-36552073

RESUMO

In neuropsychological evaluation, verbal fluency is a crucial measure of cognitive function, but this measure requires standardized and normative data for use. The present study aimed to obtain validation and normative data for the verbal fluency task in the Peruvian population, with participants ranging from 6 to 94 years and varying in age, educational level, and sex. We recruited 2602 healthy individuals and used linear regression analysis to determine the effect of age, sex, and educational level. We also evaluated internal consistency between categories and phonological tasks with Cronbach's alpha and Pearson's correlation analysis and calculated test-retest reliability after three months. We found significant effects of age, educational level, and sex on phonological and semantic fluency. Participants with more than 12 years of education had the highest scores overall. Regarding age, middle-aged participants (between 31 and 40 years old) had the highest scores; scores gradually decreased outside of this age range. Regarding sex, men performed better than women. These results will increase the ability of clinicians to precisely determine the degree to which verbal fluency is affected in patients of different ages and educational levels.

7.
Children (Basel) ; 9(9)2022 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-36138586

RESUMO

Sleep-disordered breathing (SDB) is a prevalent disease in children characterized by snoring and narrowing of the upper airway leading to gas exchange abnormalities during sleep as well as sleep fragmentation. SDB has been consistently associated with problematic behaviors and adverse neurocognitive consequences in children but causality and determinants of susceptibility remain incompletely defined. Since the 1990s several studies have enlightened these associations and consistently reported poorer academic performance, lower scores on neurocognitive tests, and behavioral abnormalities in children suffering from SDB. However, not all children with SDB develop such consequences, and severity of SDB based on standard diagnostic indices has often failed to discriminate among those children with or without neurocognitive risk. Accordingly, a search for discovery of markers and clinically useful tools that can detect those children at risk for developing cognitive and behavioral deficits has been ongoing. Here, we review the advances in this field and the search for possible detection approaches and unique phenotypes of children with SDB who are at greater risk of developing neurocognitive consequences.

8.
Neuropsychobiology ; 81(4): 271-285, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35093946

RESUMO

INTRODUCTION: Major depressive disorder (MDD) is a prevalent condition which has a well-known association with ischemic cardiomyopathy, probably explained by an inflammatory mediator mechanism. Statins, besides reducing cholesterol production, have pleiotropic effects including anti-inflammatory activity. The goal was to evaluate the effect of statins as an addition to standard therapy on mood status, brain perfusion, and neurocognitive performance in MDD. METHODS: We studied 20 MDD patients with brain single-photon emission tomography and Cambridge Neuropsychological Test Automated Battery (CANTAB), half randomized to 10 mg of Rosuvastatin or placebo, in addition to selective serotonin reuptake inhibitors (SSRIs) therapy and being reevaluated 3 months later. The images were compared using Statistical Parametric Mapping; clinical scores (Hamilton Depression Score with 17 items and Beck's Depression Inventory) as well as neurocognitive parameters were applied as covariances (CoV) to estimate regional cerebral blood flow (rCBF) changes with both therapies. RESULTS: Clinical scores decreased in both groups (p = 0.0001); Beck's presented a larger decrease with statins. We observed significantly rCBF changes expressed as significant larger clusters of voxels (p < 0.05) in the pre/subgenual anterior cingulate plus orbitofrontal cortex and a small area in the posterior cingulate gyrus in the statins group, whereas it was not observed with placebo, when using clinical scores as CoV. A similar pattern of rCBF changes was present with emotions recognition, attentional, paired associates learning, spatial planning, and working memory tasks. CONCLUSION: Short-term use of low-dose statins in MDD patients under SSRIs results in important rCBF changes in key mood associated areas to improvement in neurocognitive performance. These findings, even though demonstrated in a small sample, could open a new therapeutic tool in the comprehensive management of this disorder.


Assuntos
Transtorno Depressivo Maior , Inibidores de Hidroximetilglutaril-CoA Redutases , Encéfalo/diagnóstico por imagem , Circulação Cerebrovascular/fisiologia , Transtorno Depressivo Maior/diagnóstico por imagem , Transtorno Depressivo Maior/tratamento farmacológico , Giro do Cíngulo , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Perfusão , Inibidores Seletivos de Recaptação de Serotonina/farmacologia , Inibidores Seletivos de Recaptação de Serotonina/uso terapêutico , Tomografia Computadorizada de Emissão de Fóton Único/métodos
9.
J Int Neuropsychol Soc ; 28(8): 876-890, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-34486514

RESUMO

OBJECTIVES: We investigated the impact of culturally relevant social, educational, and language factors on cognitive test performance among Spanish speakers living near the US-Mexico border. METHODS: Participants included 254 healthy native Spanish speakers from the Neuropsychological Norms for the US-Mexico Border Region in Spanish (NP-NUMBRS) project (Age: M = 37.3, SD = 10.4; Education: M = 10.7, SD = 4.3; 59% Female). A comprehensive neuropsychological battery was administered in Spanish. Individual test scaled scores and T-scores (based on region-specific norms adjusted for age, education, and sex) were averaged to create Global Mean Scaled and T-scores. Measures of culturally relevant factors included a self-reported indicator of educational quality/access (proportion of education in Spanish-speaking country, quality of school/classroom setting, stopped attending school to work), childhood socioeconomic environment (parental education, proportion of time living in Spanish-speaking country, childhood socioeconomic and health status, access to basic resources, work as a child), and Spanish/English language use and fluency. RESULTS: Several culturally relevant variables were significantly associated with unadjusted Global Scaled Scores in univariable analyses. When using demographically adjusted T-scores, fewer culturally relevant characteristics were significant. In multivariable analyses, being bilingual (p = .04) and working as a child for one's own benefit compared to not working as a child (p = .006) were significantly associated with higher Global Mean T-score, accounting for 9% of variance. CONCLUSIONS: Demographically adjusted normative data provide a useful tool for the identification of brain dysfunction, as these account for much of the variance of sociocultural factors on cognitive test performance. Yet, certain culturally relevant variables still contributed to cognitive test performance above and beyond basic demographics, warranting further investigation.


Assuntos
Hispânico ou Latino , Idioma , Criança , Cognição , Escolaridade , Feminino , Humanos , Masculino , México , Testes Neuropsicológicos
10.
Ciênc. cogn ; 26(1): 10-25, 10 set. 2021. ilus
Artigo em Português | LILACS | ID: biblio-1292892

RESUMO

A aprendizagem de noções matemáticas exige estratégias que favoreçam a "atenção seletiva" dos alunos de modo a considerar informações relevantes e ignorar as irrelevantes. O objetivo central desta pesquisa foi identificar as noções matemáticas que requisitam atenção seletiva, configurando-se, nesta pesquisa, como as mais importantes do Ensino Fundamental (EF) esperadas pelo Ensino Médio (EM). Trata-se de uma pesquisa qualitativa de cunho teórico e documental. Considerou-se princípios da epistemologia das noções matemáticas, da análise de funções cognitivas em atividades de trigonometria e dos Níveis do Funcionamento do Conhecimento. Apropriou-se também de fundamentos neurocognitivos da atenção para a elaboração de uma matriz de referência, que serviu de lente para identificar os tipos e níveis de tarefas que requisitam atenção seletiva. Os resultados apontaram que existe um conjunto de conhecimentos no EF (Grandezas e Medidas) potencial motor para dar suporte aos pares de ideias fundamentais (BNCC, 2017), no que se refere às "relações e inter-relações" do EM. Como proposta baseada nas discussões deste trabalho, foram apresentados três tipos de tarefas que pretendem alcançar as exigências neurocognitivas e didáticas esperadas pela transição escolar entre o EF-EM.


The learning of mathematical notions requires strategies that favourthe students' "selective attention" toconsider relevant information and ignore the irrelevant ones. Themain objective of this research was to identify the mathematical notions that require selective attention, being in this research, as the most important of the Elementary School expected by High School. This is a qualitative research of a theoretical and documental kind. It was considered principles of the epistemology of mathematical notions, of the analysis of cognitive functions in trigonometry activities and of the Levels of the Functioning of Knowledge. It also considered neurocognitive fundamentals of attention for the elaboration of a reference matrix, which served as a lens to identify the types and levels of tasks that require selective attention. The results pointed out that there is a set of knowledge in the Elementary School (Quantities and Measures) potential motor to support the pairs of fundamental ideas (BNCC, 2017), regarding the "relations and interrelations" of High School. As a proposal based on the discussions of this paper, three types of tasks were presented that aim to achieve the neurocognitive and didactic requirements expected by the school transition between the Elementary School and High School.


Assuntos
Humanos , Ensino , Ensino Fundamental e Médio , Conceitos Matemáticos , Atenção
11.
Front Psychiatry ; 12: 662407, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34220575

RESUMO

Brain Derived Neurotrophic Factor (BDNF) has been linked to cognitive symptoms of schizophrenia, which has been documented in previous reviews by several authors. However, a trend has recently emerged in this field moving from studying schizophrenia as a disease to studying psychosis as a group. This review article focuses on recent BDNF studies in relation to cognition in human subjects during different stages of the psychotic process, including subjects at high risk of developing psychosis, patients at their first episode of psychosis, and patients with chronic schizophrenia. We aim to provide an update of BDNF as a biomarker of cognitive function on human subjects with schizophrenia or earlier stages of psychosis, covering new trends, controversies, current research gaps, and suggest potential future developments in the field. We found that most of current research regarding BDNF and cognitive symptoms in psychosis is done around schizophrenia as a disease. Therefore, it is necessary to expand the study of the relationship between BDNF and cognitive symptoms to psychotic illnesses of different stages and origins.

12.
J Pediatr ; 230: 182-190, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33275983

RESUMO

OBJECTIVES: To describe the academic concerns and risk strata of children with sickle cell disease (SCD) as identified through a parent-directed screening tool and to compare the rates of these concerns with actual school service utilization in the clinic population. STUDY DESIGN: We completed a retrospective review of patients with SCD referred to the school intervention program during the 2017-2018 and 2018-2019 school years because of a school-related concern raised by parents or noted by the clinical team. All parents completed the Brief School Needs Inventory (BSNI), a validated parent-response tool used to stratify academic risk. Rates of special education services, grade retention, and results from neuropsychologic testing were captured. Clinical history, the use of disease-modifying therapy, and results from laboratory and neuroimaging studies were also obtained. Descriptive statistics were performed to examine demographic information, clinical history, and BSNI results. RESULTS: In total, 137 unique patients (age range, 14 months to 19 years) completed the BSNI during the study period, for 181 events. According to BSNI risk-stratification, 45% of patients were deemed low, 36% moderate, and 19% high academic risk. Over one-half of parents were concerned about their ability to advocate for their child's needs. Despite legal qualification for a Section 504 accommodation plan, only 20% had established plans. Academic concerns were common with 31% of children reporting an individualized education program and 20% with grade retention/remediation. CONCLUSIONS: Concerns for academic challenges remain high among parents of children with SCD; however, school service utilization remains disproportionately low attributable to numerous reasons.


Assuntos
Anemia Falciforme/terapia , Utilização de Instalações e Serviços/estatística & dados numéricos , Serviços de Saúde Escolar/estatística & dados numéricos , Adolescente , Criança , Pré-Escolar , Escolaridade , Feminino , Humanos , Lactente , Masculino , Estudos Retrospectivos , Medição de Risco
13.
Clin Transl Oncol ; 22(3): 411-419, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31144211

RESUMO

PURPOSE: We performed a cross-sectional study of neurocognitive function in non-brain cancer patients treated with long-term bevacizumab. METHODS/PATIENTS: From 2015 to 2017, we included patients with different types of cancer treated with bevacizumab with or without chemotherapy (BEV; N = 20) or only chemotherapy (ChT; N = 19) for at least 34 weeks, patients who received non-brain radiotherapy (RxT; N = 19), and healthy controls (HC; N = 19) were assessed once at week 34 of treatment (BEV and ChT) or at completion of radiotherapy. Neurocognition was evaluated with the Hopkins Verbal Learning Test-Revised (HVLT-R) total and delayed recall, the Trail Making Test A and B, and the Controlled Oral Word Association Test in the four groups. Non-parametric tests were used to assess differences between groups. RESULTS: The BEV, ChT, and RxT groups scored significantly lower than the HC group on all tests and especially on the HVLT-R total recall. In no case were the mean scores of the BEV group significantly lower than those of the ChT or RxT groups. CONCLUSIONS: Neurocognitive impairment was seen even in patients treated with local non-brain radiotherapy. Treatment with bevacizumab for a long period of time does not seem to worsen neurocognitive function to a greater extent than chemotherapy.


Assuntos
Antineoplásicos Imunológicos/uso terapêutico , Bevacizumab/uso terapêutico , Neoplasias/tratamento farmacológico , Transtornos Neurocognitivos/diagnóstico , Antineoplásicos Imunológicos/efeitos adversos , Bevacizumab/efeitos adversos , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/radioterapia , Transtornos Neurocognitivos/etiologia , Testes Neuropsicológicos
14.
Compr Psychiatry ; 97: 152155, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31864219

RESUMO

BACKGROUND: Although a behavioural addiction model of obsessive-compulsive disorder (OCD) has been proposed, it is still unclear if and how self-report and neurocognitive measures of impulsivity (such as risk-taking-, reflection- and motor-impulsivities) are impaired and/or inter-related in this particular clinical population. METHODS: Seventeen OCD patients and 17 age-, gender-, education- and IQ-matched controls completed the Barratt Impulsivity Scale, the Obsessive-Compulsive Inventory-Revised, and the Beck Depression Inventory and were evaluated with the Yale-Brown Obsessive-Compulsive Scale and three computerized paradigms including reward (the Cambridge Gambling Task), reflection (the Information Sampling Task) and motor impulsivity (Stop Signal Task). RESULTS: Despite not differing from healthy controls in any neurocognitive impulsivity domain, OCD patients demonstrated increased impulsivity in a self-report measure (particularly attentional impulsivity). Further, attentional impulsivity was predicted by severity of obsessive-compulsive symptoms. CONCLUSIONS: Our findings suggest that OCD is characterized by a subjective (rather than objective) impulsivity; in addition, self-reported impulsivity was largely determined by severity of OCD symptoms.


Assuntos
Comportamento Aditivo/psicologia , Jogo de Azar/psicologia , Comportamento Impulsivo , Transtorno Obsessivo-Compulsivo/psicologia , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtorno Obsessivo-Compulsivo/diagnóstico , Transtorno Obsessivo-Compulsivo/fisiopatologia , Escalas de Graduação Psiquiátrica , Recompensa , Autorrelato , Adulto Jovem
15.
Rev. Hosp. Niños B.Aires ; 62(277): 76-79, 2020.
Artigo em Espanhol | LILACS | ID: biblio-1100687

RESUMO

Los jóvenes con hipertensión arterial pueden manifestar efectos adversos en órganos blanco como el corazón y la vasculatura, incluyendo hipertrofia ventricular izquierda, aumento de la rigidez arterial y aumento del grosor de la carótida. También existe evidencia reciente de efectos adversos debido a hipertensión en el cerebro, hallazgo con implicancias significativas del impacto de la hipertensión arterial primaria en la cognición, tanto durante la infancia como a lo largo de la vida. En los últimos 15 años, estudios de bases de datos y estudios uni y multicéntricos han evidenciado que la presión arterial elevada en niños y adolescentes se asocia con un menor rendimiento en las pruebas neurocognitivas durante la juventud. Se presenta un resumen de la literatura sobre el efecto de la hipertensión arterial en la neurocognición en niños y jóvenes, así como también se analizan posibles mecanismos. El hallazgo de un rendimiento más bajo en las pruebas neurocognitivas en jóvenes hipertensos sugiere que el tratamiento de la hipertensión arterial en la adolescencia podría representar una oportunidad para mejorar el deterioro posterior y, por lo tanto, mejorar la salud cognitiva futura


Youth with hypertension can manifest adverse target-organ effects on the heart and vasculature, including left ventricular hypertrophy, increased arterial stiffness, and increased carotid thickness. There is emerging evidence for hypertensive adverse effects on the brain as well, findings with significant implications for the impact of primary hypertension on cognition both during childhood and later in life. Over the past 15 years, database, single-center, and multicenter studies have provided evidence that elevated BP in children and adolescents is associated with lower performance on neurocognitive testing during youth itself. In this review, we summarize the literature on the effect of hypertension on neurocognition in youth as well as review possible mechanisms of altered cognition. The finding of lower neurocognitive test performance in hypertensive youth suggests that treatment of hypertension from adolescence may represent an opportunity to ameliorate subsequent cognitive decline and thereby improve downstream cognitive health


Assuntos
Criança , Adolescente , Cognição , Pressão Arterial , Pediatria
16.
Int J Psychol Res (Medellin) ; 12(1): 57-65, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-32612788

RESUMO

The results of three different groups of customers, each exposed to a different sales technique, were compared in order to evaluate which sales technique was more effective for achieving higher levels of sustained attention. The study used the Neurosky headband to measure brainwaves in millivolts. The three compared sales techniques were: 1) the training technique for sale, termed as structured by the AIDA model; 2) the traditional sale, here called unstructured; 3) and a structured technique with the help of simultaneous stimulation by several neuroattentional pathways, prescribed by the developments of the neuroscience of consumption (CN). The results showed a statistically significant difference in achieved sustained attention levels, presenting higher levels in clients exposed to the sales training technique and ower scores in those exposed to one of the techniques used by the CN. These results are discussed in relation to the concept of sustained attention in clients when the stimulation of a single neuroattentional pathway is used as compared to the activation of several pathways simultaneously.


Con el objetivo de conocer qué tipo de técnica de venta es más efectiva en lograr mayores niveles de atención sostenida, se compararon los resultados obtenidos por tres grupos de clientes expuestos, cada uno, a una técnica de venta de un mismo producto. Para el efecto se recurrió a la medición en milivoltios de ondas cerebrales de atención a través de diademas Neurosky. Las tres técnicas de venta comparadas fueron: 1) la técnica de entrenamiento en venta, estructurada según el modelo AIDA; 2) la venta tradicional, denominada aquí como no estructurada; 3) y una técnica estructurada con ayuda de estimulación simultánea por varias vías neuroatencionales, prescrita por los desarrollos de la neurociencia del consumo (NC). Los resultados mostraron una diferencia estadísticamente significativa en los niveles de atención sostenida alcanzados, presentando mayores niveles en los clientes expuestos a la técnica de entrenamiento en venta y menores puntajes en aquellos expuestos a una de las técnicas usadas por la NC. Estos resultados se discuten en relación con el concepto de atención sostenida en los clientes, cuando se recurre a la estimulación de una vía neuroatencional en comparación con la activación de varias vías simultáneamente.

17.
J Affect Disord ; 246: 252-261, 2019 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-30590288

RESUMO

BACKGROUND: Evidence has shown heterogeneity of cognitive function among patients with bipolar disorder (BD). Our study aims to replicate recent findings of cognitive subgroups, as well as we assessed subjective cognitive difficulties and functioning in each cluster. METHODS: Hierarchical cluster analysis was conducted to examine whether there were distinct neurocognitive subgroups based on neurocognitive battery. Cognitive Complaints in Bipolar Disorder Rating Assessment (COBRA) and Functioning Assessment Short Test (FAST) were used to assess subjective cognitive difficulties and functional impairment. RESULTS: We found three distinct subgroups: a first cluster with intact cognition (n = 30, 43.5%), a second cluster with selective cognitive impairment (n = 23, 33.3%), and a third cluster with globally cognitive impairment (n = 16, 23.3%). The intact group had more years of education (p < .001) and higher estimated IQ (p < .001) than globally and selectively impaired subgroups. Additionally, they were younger (p = .011), had an earlier age at bipolar diagnosis (p < .037) and earlier age of first hospitalization (p < .035) compared to individuals with globally cognitive impairment. LIMITATIONS: This is a cross-sectional design with a small sample including only patients from a tertiary hospital. CONCLUSION: Our results give support to the existence of a continuum of severity from patients without impairment to those with poor cognitive functioning. Patients in the intact group seem to have higher cognitive reserve than other two groups. However, they also experienced cognitive complaints and some degree of functional impairment. These findings suggest the importance of using a combo of instruments (e.g., objective and subjective cognitive measures plus functioning instruments) for a complete assessment of patients with BD.


Assuntos
Transtorno Bipolar/psicologia , Disfunção Cognitiva/diagnóstico , Adulto , Análise por Conglomerados , Disfunção Cognitiva/classificação , Disfunção Cognitiva/complicações , Reserva Cognitiva , Estudos Transversais , Feminino , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Centros de Atenção Terciária
18.
P R Health Sci J ; 37(3): 155-159, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30188559

RESUMO

OBJECTIVE: HIV-associated cognitive impairment (HACI) continues to persist for HIV-seropositive individuals who are on antiretroviral therapy (ART). HACI develops in part when HIV-infected monocytes (MOs) transmigrate through the blood-brain barrier (BBB) and secrete pro-inflammatory cytokines and chemokines, which leads to neuronal damage. In vitro BBB models are important tools that can elucidate mechanisms of MO transmigration. Previously described in vitro BBB models relied on pathology specimens, resulting in potentially variable and inconsistent results. This project reports on a reliable and consistent alternative in vitro BBB model that has the potential to be used in clinical research intervention studies analyzing the effects of ART on the BBB and on MO transmigration. METHODS: A bilayer BBB model was established with commercially available astrocytes and endothelial cells on a 3µm PET membrane insert to allow the contact of astrocytic foot processes with endothelial cells. Inserts were cultured in growth medium for 7 days before exposure to HIV- or HIV+ peripheral blood mononuclear cells (PBMCs). PBMCs were allowed to transmigrate across the BBB for 24 hours. RESULTS: Confluency and integrity measurements by trans-endothelial electrical resistance (TEER) (136.7 ± 18.3Ω/cm2) and permeability (5.64 ± 2.20%) verified the integrity of the in vitro BBB model. Transmigrated MOs and non-MOs were collected and counted (6.0x104 MOs; 1.1x105 non-MOs). Markers indicative of glial fibrillary acidic protein (GFAP), von Willebrand factor (vWF), and p-glycoprotein (Pgp) were revealed in immunofluorescence staining (IF), indicating BBB phenotype and functionality. CONCLUSION: Potential applications for this model include assessing the HIV DNA copy numbers of transmigrated cells (pre- and post-targeted ART) and understanding the role of oxidative stress related to HIV DNA and HACI.


Assuntos
Barreira Hematoencefálica , Movimento Celular , Leucócitos Mononucleares/fisiologia , Modelos Biológicos , Pesquisa Biomédica , Células Cultivadas , Soropositividade para HIV/sangue , Soropositividade para HIV/tratamento farmacológico , Humanos
19.
Autism Res ; 11(3): 519-530, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29286586

RESUMO

Cognitive remediation is a promising approach to treating core cognitive deficits in adults with autism, but rigorously controlled trials of comprehensive interventions that target both social and non-social cognition over a sufficient period of time to impact functioning are lacking. This study examined the efficacy of cognitive enhancement therapy (CET) for improving core cognitive and employment outcomes in adult autism. Verbal adult outpatients with autism spectrum disorder (N = 54) were randomized to an 18-month, single-blind trial of CET, a cognitive remediation approach that integrates computer-based neurocognitive training with group-based training in social cognition, or an active enriched supportive therapy (EST) comparison focused on psychoeducation and condition management. Primary outcomes were composite indexes of neurocognitive and social-cognitive change. Competitive employment was a secondary outcome. Intent-to-treat analyses indicated that CET produced significant differential increases in neurocognitive function relative to EST (d = .46, P = .013). Both CET and EST were associated with large social-cognitive improvements, with CET demonstrating an advantage at 9 (d = .58, P = 0.020), but not 18 months (d = .27, P = 0.298). Effects on employment indicated that participants treated with CET were significantly more likely to gain competitive employment than those in EST, OR = 6.21, P = 0.023, which was mediated by cognitive improvement. CET is a feasible and potentially effective treatment for core cognitive deficits in adult autism spectrum disorder. The treatment of cognitive impairments in this population can contribute to meaningful improvements in adult outcomes. Autism Res 2018, 11: 519-530. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Cognitive enhancement therapy (CET), an 18-month cognitive remediation intervention designed to improve thinking and social understanding, was found to be more effective than supportive therapy at improving mental quickness, attention, and employment in adults living with autism. Social understanding was equally improved in CET and supportive therapy. Cognitive remediation interventions are feasible and may confer significant functional benefits to adults with autism.


Assuntos
Transtorno do Espectro Autista/complicações , Transtornos Cognitivos/complicações , Transtornos Cognitivos/terapia , Terapia Cognitivo-Comportamental/métodos , Adolescente , Adulto , Transtorno do Espectro Autista/psicologia , Cognição , Transtornos Cognitivos/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Psicometria , Reprodutibilidade dos Testes , Método Simples-Cego , Resultado do Tratamento , Adulto Jovem
20.
Rev. ecuat. neurol ; Rev. ecuat. neurol;26(3): 215-219, sep.-dic. 2017. tab
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1003985

RESUMO

RESUMEN Antecedentes: Se ha reportado que los pacientes con esquizofrenia presentan alteraciones en el procesamiento emocional, específicamente en la percepción de emociones. Sin embargo, poco se sabe sobre otros aspectos de este proceso, como la regulación emocional. Objetivo: Evaluar y comparar la regulación emocional y neurocognición en pacientes con esquizofrenia y sujetos control, así como identificar correlaciones entre regulación emocional, neurocognición y datos demográficos. Método: Se evaluaron nueve pacientes (GE) y nueve controles (GC). Se obtuvieron datos demográficos, para evaluar regulación emocional se utilizó la Prueba de Inteligencia Emocional Mayer-Salovey Caruso, sección Manejo de Emociones y se realizó una breve evaluación neurocognitiva. Resultados: El GE tuvo un desempeño significativamente inferior que el GC en la prueba de regulación emocional y en neurocognición (p<.05). No se encontraron correlaciones entre regulación emocional, neurocognición, datos demográficos y clínicos. Discusión y conclusión: Los pacientes con esquizofrenia presentan menor capacidad de regulación emocional y alteraciones en la neurocognición. Estos resultados son consistentes con lo descrito en la literatura.


ABSTRACT Background: It has been reported that schizophrenia patients display emotional processing impairments, specifically in the emotion perception domain. However, less is known about other domains of emotional processing, like emotion regulation. Objective: The aim of this study was to assess and compare emotion regulation abilities and neurocognition in schizophrenia patients and healthy controls, as well as to identify correlations between emotion regulation, neurocognition and demographic data. Methods: 9 patients (GE) and 9 controls (GC) were recruited. Demographic data was obtained. To assess emotion regulation, the Mayer-Salovey-Caruso Emotional Intelligence Test -Managing Emotions section- was administered. Finally, a brief neurocognitive assessment was conducted. Results: The GE showed significant poorer performance than the GC in the emotion regulation test as well as in the neurocognitive assessment (p < .05). No correlations were identified between emotion regulation, neurocognition, demographic and clinical data. Discussion and conclusion: Schizophrenia patients show emotion regulation impairment, as well as neurocognitive deficits. Our results are consistent with other studies.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA