My aim for this literature review is to present and discuss a possible relationship between physical exercise and different kinds of cognitive functions. With the increasing interest on the topic, more studies have been conducted and the results from the studies have been a little ambiguous. The most part of the studies has been showing that exercise has a positive effect on cognitive functions. The evidence from the studies also says that exercise can help the brain to regulate the production of new neurons and to increase brain volume in the prefrontal and temporal areas. That can be very beneficial for elderly people with dementia, Alzheimer's disease or other cognitive declines. Evidence of exercise combined with the right nutrition can enhance cognitive performance even more but to establish this more research is needed.

Abstract: Determine the level of concordance between the Mini-Mental State Examination (MMSE), Short Portable Mental State Examination (SPMSQ), and Montreal Cognitive Assessment (MoCA) screening test for cognitive impairment in older adults. A cross-sectional study based on an original cohort study. 1683 patients over 60 years-old were included between 2010 and 2015. Demographic information was collected and the MMSE, MoCA, and SPMSQ scores were obtained. Categorical variables were presented as frequencies and percentages, while numerical ones as median and interquartile range. The agreement was measured and adjusted by the number of years of education by Cohen’s Kappa index (k) with a 95% confidence interval (CI). The agreement was considered as good if k > 0.80. MMSE classified 43.32% of the patients as having cognitive impairment, MoCA 43.14%, and SPMSQ 24.84%. MMSE and MoCA showed an agreement (k) of 0.99 with a 95% CI of 0.99–1.00; MoCA and SPMSQ showed a k of 0.43 (95% CI: 0.38–0.46). Finally, MMSE and SPMSQ showed a k of 0.42 (95% CI: 0.37–0.46). The results did not change when performing the analysis by education subgroups. There was a strong concordance between MoCA and MMSE tests. Nevertheless, the SPMSQ was discordant with the other tests. / Revisión por pares

The purpose of this study was to determine whether the Woodcock-Johnson-Revised Cognitive test is biased when used with a Hispanic population of school-age children. Norming data, provided by R. Woodcock, Ph.D., for grades three, five, eight, and eleven were used for the study. Three hypotheses were explored. The first hypothesis called for a comparison by gender. The second hypothesis called for a comparison of non-Hispanics and Hispanics. The third hypothesis called for comparisons between all combinations of grade levels using only the non-Hispanic subgroup. Using the results of confirmatory factor analysis from LISREL VIII (1993), the chi-square difference test, and three goodness-of-fit indexes provided evidence of similarity in factor patterns between target groups. Hypothesis 1 stated that there were no differences between male and female factor patterns. The results of the confirmatory factor analysis supported the acceptance of hypothesis 1. Hypothesis 2 stated that there were no differences between non-Hispanic and Hispanic students. The results of the confirmatory factor analysis supported a qualified acceptance of hypothesis 2. The relationships between the latent variables are significantly different. Age, therefore, may have been a confounding variable in this study. Hypothesis 3 stated that there were no differences in patterns between grades. Only one of the six grade comparisons, 3-5, found model 1 to be the preferred model. All other comparisons found model 3 to be the preferred model. The residual or error terms were variable in matrix patterns, indicating that a factor other than age may be influencing the relationships. A fourth analysis was utilized and determined model 1 to be the preferred model. The results of the analysis indicate that differential patterns of processing, rather than age, may be the variable influencing the relationship of latent variables.

Previous studies have found that West Indian pupils under-achieve in English schools. Unlike other ethnic minorities their "English-speaking" classification often precludes special language assistance. This study investigated the language usage and cultural affiliations of pupils of West Indian descent, using a sample of 241 twelve year olds from 7 schools. A special English test based on differences between Standard English and West Indian Dialect and an Attitude Test based on children's statements about culture, language, race and education were constructed and administered with a Cognitive Test and Anxiety Test. Teachers' views were obtained from a Teachers' Questionnaire. The experimental group was composed of pupils of West Indian descent taught by a compensatory programme that attempted to boost pupils' cultural self-esteem and correct language errors stemming from differences between 'Standard' and 'Dialect'. One control group comprised pupils of West Indian descent who received no special programme. The other was composed of white indigenous English children in similar schools. The main findings of the study were as follows: 1. English Test results indicated significant differences of score between the English and West Indian pupils on key grammar terms. 2. Cultural 'poles' of attitude groupings indicated sharp differences between these groups despite the British birth and education of the pupils of West Indian descent. 3. The experimental group, supposedly withdrawn at random from main group classes for the special cultural and linguistic enrichment programme, expressed unhappy attitudes and obtained significantly lower scores on the English and Cognitive Tests than either of the other groups. 4. Subsequent testing was carried out in the schools from which the experimental group had been obtained. This offered further evidence of the experimental group’s unusual characteristics, and provided additional information in a comparison made with the original control groups. The findings indicate that children of West Indian descent experience some difficulty with elements of language where ‘Standard’ and 'Dialect' differ and that these language elements should be taught in the main class group. The method of withdrawing West Indian pupils for special language and cultural classes is not recommended, as neither linguistic nor cultural benefits were observed and definite contra-indications were noted. Futhermore, 'multiculturalism' appears to be as important for the ethnic majority as for the minorities. Future research could develop the Attitude Test for use in correlative studies with English and other tests. It has been a particularly useful tool for identifying linguistic and cultural attitudes of a minority and has revealed group characteristics not previously identified. The English Test could contribute to the construction of diagnostic tests and lay the basis for a teaching programme based on features of 'Dialect' and ‘Standard’, in order to meet the needs of pupils of West Indian descent within a multicultural context in an integrated classroom.

In the United States, an annual estimate of 1.36 million traumatic brain injuries present to the emergency department (ED), of which approximately 75% are concussions. Proper and timely treatment of concussion is especially important in pediatrics as children and adolescents under the age of 19 are at a higher risk for sustaining more severe and longer-lasting consequences. However, due to the wide range of symptoms at presentation, or to the potential lack of obvious symptoms, concussion can be especially difficult to diagnose in the ED setting. Neurocognitive tests provide a valuable supplement to the clinical diagnosis of concussion by objectively identifying aberrant brain activity. However, many of these tests are often too lengthy and impractical for use in the ED setting. The Immediate Post-Concussion Assessment and Cognitive Test (ImPACT) is a 20-minute computer test that is considered to be one of the gold-standard neurocognitive tests used to diagnose concussion and track recovery. The King-Devick test (KD) is a 1-2 minute test that uses saccadic eye movements to detect suboptimal brain impairment associated with concussion. To date, there have not been any studies that analyzed the relative usability of the KD and the ImPACT in the pediatric ED (PED). The present prospective pilot study investigates the use of the KD as a neurocognitive tool for concussion assessment in the PED and at a post-ED visit, relative to the ImPACT, the gold standard tool for concussion diagnosis. We hypothesize that the change in performance in the KD will correlate with the change in the ImPACT results. To date, 20 subjects between the ages of 11-18 years old presenting to the PED within 72 hours of sustaining a head injury have completed the study. The mean age of our study population was 13.6 years. The average change in test scores between PED and follow-up were: 7.2 seconds in the KD, 0.03 points in the ImPACT reaction time, 1.8 points in verbal memory, 8.3 points in visual memory, 0.8 points in visual motor speed, and 14.9 points in post-concussion symptom scale. Analysis of the correlation of the change in the KD scores to the change in the ImPACT measures revealed that the change in the KD was significantly correlated with the change in the ImPACT reaction time (p < 0.01), and with the change in the ImPACT verbal memory (p < 0.05) in the subjects that presented with LOC, 80% of whom were male. In conclusion, our findings report that the correlation between the results of the KD and the ImPACT is more pronounced in patients presenting with more severe head trauma, such as those leading to LOC. The usability of the KD as a reliable concussion assessment tool in the PED would require further investigation with a larger sample of participants. / 2017-04-30T00:00:00Z

Students at the graduate level undergo higher levels of stress compared to their peers, and this stress is known to affect academic performance. Most of the research is focused on the negative aspect of stress. Positive psychology aspects, such as eustress and flow, are related to success in some activities; however, it is unknown whether these correlate with academic performance. Several stress-related theories-Yerkes-Dodson curve, cybernetics, conservation of resources, and choking under pressure-guided this quantitative study of the effects of eustress, flow, and cognitive test anxiety (CTA) on a psychomotor practical examination for physical therapy students. A sample of 192 physical therapy graduate students across 3 campuses and 5 programs participated. Immediately following a standard psychomotor practical examination, and prior to any performance feedback, participants' levels of eustress, flow, and CTA were measured. All 3 variables had statistically significant bivariate correlations with exam score, and in the expected direction. In a standard multiple regression flow was the only statistically significant predictor; exam scores increased as flow increased. A follow-up analysis revealed that flow mediated (a) the positive relationship between eustress and exam score, and (b) the negative relationship between CTA and exam score, mitigating CTA's negative effect. Results suggest positive social change interventions focused on enhancing positive psychological states could improve academic performance and clinical training, leading to better clinical practice performance and outcomes for patients.

L'objectif principal de la thèse est de montrer les apports de l'évaluation contextualisée à l'évaluation de l'intelligence chez les adolescents.e.s, à travers cinq articles. Le premier fait l'état des lieux de l'évaluation contextualisée de l'intelligence. Le second développe les évaluations auto et hétéro-rapportées de l'intelligence. Les trois suivants rendent compte des apports d'outils d'évaluation contextualisée notamment en termes de preuve de validité. Seul le facteur de raisonnement fluide du questionnaire d'auto-évaluation prédit les résultats scolaires. Les liens avec le comportement adaptatif existent, notamment avec le facteur de vitesse de traitement du questionnaire (r=.69). Les questionnaires d'hétéro-évaluations entretiennent des liens modérés à forts avec les résultats scolaires. Enfin, pour le test de performance composé de sept subtests, seule une épreuve (intelligence cristallisée) corrèle positivement et significativement avec la moyenne scolaire générale (r=.42); et trois avec le comportement adaptatif (corrélations néanmoins faibles). Les résultats et implications de ces résultats sont discutés dans la conclusion et une ouverture sur la réalité virtuelle est proposée. / The main objective of the thesis is to show the contributions of the contextualized evaluation to the evaluation of the intelligence of teenagers, through five articles. The first takes stock of the contextualized evaluation of intelligence. The second develops self and hetero-reported assessments of intelligence. The following three report the contributions of contextualized evaluation tests, particularly in terms of proof of validity. Only the fluid reasoning factor of the self-report questionnaire predicts school results. The links with adaptive behavior exist, notably with the processing speed factor of the questionnaire (r = .69). Hetero-assessment questionnaires have moderate to strong links to school performance. Finally, for the performance test composed of seven subtests, only one subtest (crystallized intelligence) correlates positively and significantly with school results (r = .42); and three with adaptive behavior (yet weak correlations). The results and implications of these results are discussed in the conclusion and an opening on virtual reality is proposed.