Sprinting in two languages: Picture naming performance of older Spanish-English bilinguals on the Multilingual Naming Test Sprint 2.0.

OBJECTIVE: The present study examined how years of immersion in a nondominant language affect (a) the degree of bilingualism as measured by picture naming scores and (b) the bilingual disadvantage relative to monolinguals. METHOD: Forty-two older Spanish-English bilinguals named pictures in an expanded rapid administration version of the Multilingual Naming Test (MINT Sprint 2.0) in both languages and completed a language history questionnaire. English-speaking monolinguals (n = 138; from Gollan et al., 2024) named pictures in just one language. RESULTS: Spanish-dominant bilinguals named more pictures in the nondominant language but fewer pictures in the dominant language relative to English-dominant bilinguals. Increased years of immersion in the nondominant language increased naming scores in that language but decreased naming scores in the dominant language. When controlling for differences in age and education level, monolinguals named more pictures than bilinguals even in their dominant language, a difference that was numerically smaller for English-dominant bilinguals. However, two bilinguals who stated that they prefer to be tested in English scored much higher in Spanish. CONCLUSIONS: Older bilinguals name fewer pictures than demographically matched monolinguals even when bilinguals are tested in their dominant language and especially if they report many years of immersion in their nondominant language. The bilingual disadvantage can be magnified if self-reported language preference is used to determine the language of testing. Accurate interpretation of bilingual picture naming scores requires a thorough language history and objective assessment in both languages, which can be done in relatively little time using rapid administration procedures. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The MINT Sprint 2.0: A picture naming test for detection of naming impairments in Alzheimer's disease and in preclinical AD.

INTRODUCTION: Evidence on the onset of naming deficits in Alzheimer's disease (AD) is mixed. Some studies showed an early decline, but others did not. The present study introduces evidence from a novel naming test. METHODS: Cognitively normal (n = 138), mild cognitive impairment (MCI; n = 21), and Alzheimer's disease (AD; n = 31) groups completed an expanded Multilingual Naming Test with a time-pressured administration procedure (MINT Sprint 2.0). Cerebrospinal fluid biomarkers classified participants as true controls (n = 61) or preclinical AD (n = 26). RESULTS: Total correct MINT Sprint 2.0 scores exhibited good sensitivity and specificity (>0.85) for discriminating true controls from cognitively impaired (MCI/AD) groups and showed significant differences between true controls and preclinical AD groups. Time measurement did not improve classification, but percent resolved scores exhibited promise as an independent AD marker. DISCUSSION: Naming deficits can be detected in the earliest stages of AD with tests and procedures designed for this purpose.

Glycemic and Satiety Response to Three Mexican Honey Varieties.

Honey is considered one of the last untreated natural food substances, with a complex composition. It is produced by bees (Apis mellifera) from nectar. The glycemic index (GI) is a physiological assessment of a food's carbohydrate content via its effect on postprandial blood glucose concentrations. This study evaluated the GI and the satiety response to three Mexican types of honey administered to 26 healthy volunteers. The fructose values ranged from 272.40 g/kg to 395.10 g/kg, while the glucose value ranged from 232.20 g/kg to 355.50 g/kg. The fructose/glucose (F/G) ratio of honey was 1.45, 1.00, and 1.17 for highland, multifloral, and avocado honey, respectively. Highland and avocado honey were classified as medium-GI (69.20 ± 4.07 and 66.36 ± 5.74, respectively), while multifloral honey was classified as high-GI (74.24 ± 5.98). Highland honey presented a higher satiety values response than glucose. The difference in GI values and the satiety response effect of highland honey could be explained by its different carbohydrate composition and the possible presence of other honey components such as phytochemicals. Honey, especially avocado, could therefore be used as a sweetener without altering significantly the blood glucose concentration.

Consumption of Nopal Powder in Adult Women.

Osteoporosis is a chronic disease in adult women caused by menopause and some other factors, which entails deficiency of calcium in diet. Natural products are the best source of nutriments to reduce the risk of chronic diseases. Nopal (Opuntia ficus-indica) is a plant characterized by its nutritional components and benefits to health. Its calcium content increases with maturation process that could be beneficial for consumers. Nopal powder (NP) was elaborated from nopal harvested within 16-24 weeks of maturation, and the nutritional content was determined. An experimental clinical trial was performed to evaluate the effect of NP. A total of 69 women between 40 and 60 years old participated in the study. During 24 weeks, experimental group (n = 56) consumed a daily dose of 5 g of NP and control group (n = 13) continue with habitual diet. Changes in bone mineral density (BMD), body mass index (BMI), body fat percentage and serum calcium were assessed. Between baseline and after 24 weeks of consumption, no significant changes were found in BMD P = .885 experimental group and P = .970 control group, BMI P = .865 experimental group and P = .984 control group, body fat P = .744 experimental group and P = .740 control group and serum calcium P = .282 experimental group and P = .959 control group. These results indicate that advanced maturation NP does not have influence in bone health, BMI, and body composition in adult women.

Glycemic index and glycemic load in the Opuntia ficus-indica fruit / Índice glucémico y carga glucémica en el fruto de la especie vegetal Opuntia ficus-indica

There is evidence that support the clinical usage of glycemic index (GI) and glycemic load (GL) in the prevention of chronic disease. Objective: To determine the GI and GL of the Opuntia ficus-indica fruit. Methodology: An analytic, transversal study was made involving 25 healthy volunteers accepted by an informed consent with a normal body mass index, glucose, glycoside hemoglobin, cholesterol and serum triglycerides. The homogeneity of the population was evaluated with anthropometrical and biochemical data using principal component analysis (PCA). The equivalent of 50 g of carbohydrates test food (tuna) and 50 g of dextrose as food standard was provided for the measure of the glucose curve. The GI was determined by calculating the area under the curve by the triangulation method. The CG was reported as the product of IG by carbohydrate loading provided. Results and Conclusions: The IG of the tuna was 48.01 ± 17.4, classified as low, while the CG was 24.0 ± 8.7 rated as high. The chemometric analysis by PCA showed that the selection of the normal population for determining the IG, it is important to consider the values of cholesterol and triglycerides.

Existe evidencia que apoya la utilidad clínica de que el índice glucémico (IG) y la carga glucémica (CG) podrían ser impor- tantes en la prevención de enfermedades crónicas. Objetivo: Determinar el IG y la CG del fruto de Opuntia ficus-indica (tuna). Metodología: Se realizó un estudio analítico, transversal, con 25 voluntarios sanos con valores normales de índice de masa corporal, glucosa, hemoglobina glucosilada, colesterol y triglicéridos séricos, que mediante consentimiento informado acepta- ron participar. Con los datos antropométricos y bioquímicos se evaluó la homogeneidad de la población usando análisis de componente principal (PCA). Se proporcionó el equivalente a 50 g de hidratos de carbono de alimento de prueba (tuna) y 50 g de dextrosa como alimento estándar para medir la curva de glucosa. El IG se determinó calculando el área bajo la curva por el método de triangulación. La CG se reportó como el producto del IG por la carga de hidratos de carbono propor- cionada. Resultados y conclusiones: El IG de la tuna fue de 48.01 ± 17.4, clasificado como bajo, mientras que la CG fue de 24.0 ± 8.7, clasificada como alta. El análisis quimiométrico por PCA demostró que, en la selección de la población normal para la determinación del IG, es importante considerar los valores de colesterol y triglicéridos en sangre.

Does Bilingual Language Control Decline in Older Age?

We investigated age-related decline of bilingual language control. Thirteen older and 13 younger bilinguals performed a verbal fluency task (completing the same letter and semantic categories in each language and switching languages after every category), and a non-linguistic flanker task. In letter fluency, bilinguals produced fewer correct responses after switching languages, suggesting inhibition of the previously-used language. However, this testing-order effect did not differ between groups and older bilinguals produced few wrong-language intrusions, implying intact ability to apply inhibition in older age. In contrast, age-related deficits in the flanker task were robust, implying dissociations between language control and domain-general executive control. In semantic fluency, there were no testing-order effects but older bilinguals produced more intrusions than younger bilinguals, and more intrusions than in letter fluency. Thus, bilinguals may flexibly modulate the degree of inhibition when they can benefit from semantic priming between languages, but less efficiently so in older age.

Multiple levels of bilingual language control: evidence from language intrusions in reading aloud.

Bilinguals rarely produce words in an unintended language. However, we induced such intrusion errors (e.g., saying el instead of he) in 32 Spanish-English bilinguals who read aloud single-language (English or Spanish) and mixed-language (haphazard mix of English and Spanish) paragraphs with English or Spanish word order. These bilinguals produced language intrusions almost exclusively in mixed-language paragraphs, and most often when attempting to produce dominant-language targets (accent-only errors also exhibited reversed language-dominance effects). Most intrusion errors occurred for function words, especially when they were not from the language that determined the word order in the paragraph. Eye movements showed that fixating a word in the nontarget language increased intrusion errors only for function words. Together, these results imply multiple mechanisms of language control, including (a) inhibition of the dominant language at both lexical and sublexical processing levels, (b) special retrieval mechanisms for function words in mixed-language utterances, and (c) attentional monitoring of the target word for its match with the intended language.