View clinical trials related to Language.
Filter by:The oral comprehension (OC) of a second language (L2) involves different cognitive processes, specially during the learning phase. This study aims at investigating the neurophysiological functioning of different steps involved in this oral understanding.
Caffeine is a psycho-active substance that is widely consumed in the world. It is seen that its widespread consumption is related to expectancies of consumption as well as cultural factors. Recreationally active individuals may have various expectations from caffeine consumption in line with their lifestyles and goals such as physical, social and/or other aspects. It can be stated that caffeine consumption expectancies have an important role in the process of evaluating consumption patterns. However, in the literature it seems to be very limited information about expectancies related to caffeine consumption. In this direction, the aim of the research was to test the compatibility of Brief-Caffeine Expectancy Questionnaire (B-CaffeQ) to Turkish culture and language. In the study, data will be collected from two separate participant groups and going to analysis. To reveal the structure on the first group (n=250-300 approx.) data, Exploratory Factor Analysis (EFA), and to verify the structure on the second group (n=313) data, Confirmatory Factor Analysis (CFA) will be used. Reliability will be assessed by performing test-retest and internal consistency analyzes on both the two data groups.
This study will examine the effect of TMS on people with stroke and aphasia as well as healthy individuals.
The Early Childhood version of Sugira Muryango is a family-based, home-visiting intervention targeted at early childhood development and implemented with families living in extreme poverty in three districts of Rwanda. This version of Sugira Muryango was first tested in two small pilot studies and a large cluster randomized trial (CRT) was implemented between February 2018 and September 2019 . Pre- to post-intervention findings demonstrated that Sugira Muryango led to improvements in caregiver behaviors linked to child development and health as well as reductions in violence, which were sustained 12 months after the intervention, at which time improvements in child development were observed. The Research Program on Children and Adversity in the Boston College School of Social Work is led by Dr. Theresa S. Betancourt and will, in partnership with the University of Rwanda, FXB-Rwanda and Laterite, conduct a longitudinal follow-up study to investigate the longer-term outcomes of the Sugira Muryango intervention in families who participated in the CRT. The four-year follow-up will examine the long-term and sustained outcomes of the intervention. In particular, the investigators will look at key indicators of long-term positive outcomes for children such as school readiness and transition to formal schooling. Given the lack of longitudinal research on intervention programs supporting ECD in sub-Saharan Africa, this study will contribute greatly to the body of knowledge on the costs and benefits of investments in ECD and guide policy makers and government leaders on making impactful investments in children, leading to long-term benefits for the population at large. The follow-up study involves two activities: Activity A: Pilot to assess measures performance of newly added measures and field test study protocols. Activity B: Four-year follow-up of families who participated in the CRT of the Sugira Muryango intervention.
Catecholamine (CA) neurotransmitters, such as dopamine (DA) and noradrenaline (NA), have long been implicated playing a critical role in cognitive functions, such as working memory (WM), inhibition, learning, and decision making. Recent evidence from neurodegenerative patients and the healthy population suggested that CA also influences language processing. However, the question of what kind of influence that CA might exert on language is still open. Some previous studies have shown that CA can enhance semantic processing. In a recent study it was observed that CA agonists (i.e., methylphenidate) enhance participant's sensitivity to semantically incongruent information even when language processing was actually goal-irrelevant. On the other hand, the processing of semantically congruent information was enhanced while language processing was the goal. Moreover, consistent with some previous findings that there is a relation between participants' baseline characteristics and MPH effects, it was observed that participants with lower WM capacity benefited more from receiving methylphenidate. These results shed light on the relation between CA and language processing, but also lead to further questions, such as whether the interaction between CA and semantic processing is language-specific or mediated by the relation between CA and more general cognitive functions (e.g., WM, inhibition), and whether CA also has an influence on other aspects of language processing, such as syntactic processing. The present study aimed to further investigate the nature of the relation between CA and language processing by administrating methylphenidate (MPH) to healthy participants. MPH is an indirect CA agonist, which is the most commonly prescribed drug for attention deficit/hyperactivity disorder (ADHD). Previous studies have shown that MPH can efficiently increase the extracellular levels of CA in the brain by blocking their reuptake. Objective: The primary objectives are: 1) to further investigate the effect of CA on semantic processing. The study plans to examine whether MPH interacts with processing of sentence context constraints via its influence on cognitive control operations. 2) To investigate the effects of MPH on syntactic processing. More specifically, the study is interested in whether MPH has an influence on revising syntactically temporarily ambiguous sentences. A secondary objective is to further examine the relation between MPH effects and the baseline characteristics of individual participants. Study design: This study will use a within-subject, double-blind, placebo-controlled, randomized, crossover design. Study population: Approximately 40 healthy native Dutch speakers between 18 and 45 years old will be recruited. All subjects will have to complete one screening session and two separate testing sessions within three different days at the Donders Centre for Cognitive Neuroimaging (DCCN). Intervention: Participants will either orally receive a 20mg methylphenidate or placebo capsule in each of the two testing sessions. Methylphenidate has been approved for clinical use in the Netherlands and the drug can be administered safely without any relevant risk of serious adverse events. Main study parameters: Primary study parameters will include sentence comprehension capacity, attention and processing speed. In addition, several other measures will be included to monitor participants' baseline characteristics (e.g. working memory capacity, vocabulary size) and the general modulation effects of MPH (e.g. heart rate, blood pressure, subjective feeling). Hypotheses: Based on the previous finding that methylphenidate improves cognitive stability while it impairs flexible updating, the hypothesis is that methylphenidate will hinder participants' performance in resolving syntactic ambiguity, which requires an immediate updating and revising of an initial interpretation. This should be reflected in event-related potential (ERP) measures related to revision, namely the P600 effect is predicted to be reduced in the drug condition compared to placebo.
Language is a signature human cognitive skill, but the precise computations that support language understanding remain unknown. This study aims to combine high-quality human neural data obtained through intracranial recordings with advances in computational modeling of human cognition to shed light on the construction and understanding of speech.
The purpose of this study is to better understand cortical contributions of the human temporal lobe to the frequency-following response. Frequency-following responses (FFR) are electrophysiological recordings that reflect phase-locked activity of neural ensembles in the auditory pathway and are used as an indicator of the integrity of supra-threshold speech processing. FFR was first studied in subcortical areas, but recent consensus in the literature supports the notion that it is an integrated response between subcortical and cortical neural populations. The proposed study aims to deconstruct the role of the cortex in generating and modulating the FFR. The research team will build a novel computational model of FFR mechanisms and use EEG recordings from participants who have undergone resection of lesions in Heschl's gyrus to validate model predictions.
The frequency-following response (FFR), a scalp-recorded neurophonic potential, is a widely used metric of speech encoding integrity in healthy and clinical human populations. The translational potential of the FFR as a biomarker is constrained by poor understanding of its neural generators and influencing factors. This study leverages a cross-species and cross-level approach to provide mechanistic insight into the properties of the cortical source of the FFR, and elucidate the role of cortical feedback via cortico-collicular projections on modulation of the FFR as a function of stimulus context, arousal state, and category relevance. This clinical trial will focus on the influences of category relevance, predictability, and participant arousal state on the FFRs in neurotypical human participants.
Delayed discharge in geriatric units is a health and economic issue. There is no algorithm to automatically measure the appropriateness of admissions or hospital days. 30% of the days of hospitalization in acute geriatric units (AGU) are not appropriate. Waiting for a transfer to a follow-up care and rehabilitation unit (SSR) is the main risk factor for inappropriate days. The purpose of this project is to develop an algorithm using natural language processing to predict the appropriateness of an admission to UGA, or a day at UGA.
This is a feasibility study and a pilot trial of a multilingual support intervention with the aim to improve language training for Norwegian refugees by systematically using the participants' primary language to support the learning of the new language. The study is conducted in three Norwegian municipalities with the aim to evaluate feasibility for a full-scale randomised controlled trial. The pilot trial will include at least 30 participants, with two thirds allocated to the treatment group and one third to the control group. The intervention will be implemented as an add on to ordinary classroom settings. The treatment group will receive seven hours multilingual support weekly. The control group will receive the same amount of support, but from a person without multilingual qualifications. The Norwegian Directorate of Integration and Diversity (IMDi) are funding the project and have reviewed the protocol.