Researchers have hypothesized that learning a foreign language could be beneficial for seniors, as language learning requires the use of extensive neural networks. We developed and qualitatively evaluated an English training program for older French adults; our principal objective was to determine whether a program integrating technology is feasible for this population. We conducted a 4-month pilot study (16, 2-h sessions) with 14 French participants, (nine women, five men, average age 75). Questionnaires were administered pre- and post-intervention to measure cognitive level and subjective feelings of loneliness or social isolation; however, these scores did not improve significantly. Post-intervention, semi-directive interviews were carried out with participants, and a content/theme analysis was performed. Five main themes were identified from the interviews: Associations with school, attitudes toward English, motivation for learning English, attitudes toward the program’s organization, and social ties. The program was found to be feasible for this age group, yet perceived as quite difficult for participants who lacked experience with English. Nonetheless, most participants found the program to be stimulating and enjoyable. We discuss different suggestions for future programs and future directions for foreign-language learning as a therapeutic and cognitive intervention.

PurposeMild cognitive impairment (MCI) is associated with a higher risk of dementia and is becoming a topic of interest for pharmacological and nonpharmacological interventions. With advances in technology, computer-based cognitive exercises are increasingly integrated into traditional cognitive interventions, such as cognitive training. Another type of cognitive intervention involving technology use is cognitive engagement, consisting of involving participants in highly motivational and mentally challenging activities, such as learning to use a form of new digital technology. This study examined the feasibility and acceptability of a computerized cognitive stimulation (CCS) program and a computerized cognitive engagement (CCE) program, and then compared their effects in older adults with MCI.Patients and methodsIn this randomized study, data from 19 MCI patients were analyzed (n=9 in CCS and n=10 in CCE). The patients attended a group weekly session for a duration of 3 months. Assessments of cognitive and psychosocial variables were conducted at baseline (M0) and at the end of the programs (M3).ResultsAll of the participants attended the 12 sessions and showed a high level of motivation. Attrition rate was very low (one dropout at M3 assessment). At M3, the CCS participants displayed a significant improvement in part B of the Trail Making Test (TMT-B; p=0.03) and self-esteem (p=0.005), while the CCE participants showed a significant improvement in part A of the Trail Making Test (TMT-A; p=0.007) and a higher level of technology acceptance (p=0.006). The two groups did not differ significantly (p>0.05) in cognitive and psychosocial changes after the intervention. However, medium effect sizes (Cohen’s d=0.56; 95% CI =−0.43:1.55) were found on the free recall, favoring the CCS group, as well as on TMT-A (d=0.51; 95% CI =−0.48:1.49) and technology acceptance (d=−0.65; 95% CI =−1.64:0.34), favoring the CCE group.ConclusionBoth interventions were highly feasible and acceptable and allowed improvement in different aspects of cognitive and psychosocial functioning in MCI subjects.

Cet article présente la version franç aise de la DAD-6, un outil validé dans l'évaluation des capacités à réaliser les IADL (instrumental activities of daily living) ou activités intentionnelles et complexes de la vie quotidienne. L'évaluation du degré de perte d'autonomie demeure un critère majeur de différenciation entre trouble cognitif léger, démence et sujets normaux. Il existe plusieurs échelles évaluant les IADL, mais la vérification de leurs propriétés psychométriques s'est souvent révélée insuffisante. C'est dans un contexte d'amélioration du diagnostic précoce de la démence que la DAD-6 a été conç ue. Cet outil est fondé sur la mise en exergue des fonctions cognitives requises dans la réalisation des IADL et essentiellement les fonctions exécutives. Le travail actuel montre la fidélité de l'outil. Une utilisation du questionnaire avec les mêmes informants par un neurologue et deux neuropsychologues, séparément, ont montré une excellente concordance entre les différents évaluateurs (alpha de Krippendorff > 0,80). Le présent travail a aussi permis d'identifier et de classer les principaux biais inhérents aux évaluations subjectives. Les auteurs proposent de clarifier les liens théoriques entre fonctions cognitives et IADL et suggèrent une définition précise des IADL. Ils soulignent l'intérêt d'une évaluation des IADL par des professionnels formés à la neuropsychologie.Mots clés : fonctions exécutives, IADL, activités de vie quotidienne, perte d'autonomie Abstract. This paper presents the French version of DAD-6, a validated instrument for the assessment of IADL (instrumental activities of daily living) considered as intentional and complex activities. A loss of autonomy remains a major criterion in the diagnosis of dementia. In addition, IADL assessment is recommended as a primary outcome in dementia drug trials. Since the publication in 1969 by Lawton and Brody of an IADL scale, manyinstruments have been developed. However, their psychometric properties remain to be improved. The need for improving the early diagnosis yielded to the design of DAD-6, an instrument allowing capturing subtle difficulties in IADL management. The DAD-6 scale emphasizes the role of the cognitive function, mainly the executive function in early IADL impairment. DAD-6 requires the participation of an informant (a patient's proxy). Relative to patients' self-reports or performance-based methods, informant-based questionnaires are the most common and practical methods used in memory clinics. In previous work, DAD-6 score gradually decreased with increasing severity of the cognitive status. The present work shows the inter-rater reliability of DAD-6. The use of the scale with the same informants by one neurologist and two neuropsychologists, separately, indicated a high agreement between raters (alpha of Krippendorff > 0.80).This work also highlights the main sources of bias in the context of evaluation based on subjective judgement. The authors stress the necessity of: 1 -a clarification of the relationship between cognitive funct...

with no evidence of accumulation over 14 days. At the 560 mg dose, CSF levels of CT1812 correspond to estimated brain concentrations equivalent to 95% receptor occupancy. Conclusions: In healthy volunteers, CT1812 was well tolerated with single doses up to 1120 mg and with multiple doses up to 840 mg in healthy young volunteers and 560 mg in healthy elderly volunteers. Multiple dose exposure of CT1812 corresponded to more than 20x the expected minimum therapeutic dose while CSF analysis indicated that brain concentrations exceeded the minimum target expected to improve memory (>80% receptor occupancy). CT1812 is designed to directly test the oligomer hypothesis of AD treatment. Further development will test the ability of CT1812 to improve cognitive ability in AD patients.