Bilingual effects on cognitive shifting and prefrontal activations in young children

2019 ◽  
Vol 24 (4) ◽  
pp. 729-739 ◽  
Author(s):  
Yusuke Moriguchi ◽  
Kanda Lertladaluck
Keyword(s):  
Second Language ◽  
Executive Function ◽  
Young Children ◽  
Near Infrared ◽  
Nursery School ◽  
Bilingual Children ◽  
Neural Processing ◽  
Language Experience ◽  
Functional Near Infrared Spectroscopy ◽  
Cognitive Shifting

Aims and objectives: Bilingual children constantly experience spontaneous switching between languages in everyday settings, and some researchers suggest that this experience leads to an advantage in task performance during executive function tasks. Neural processing during executive function tasks remains largely unknown, especially in young bilingual children. Methodology: Using functional near-infrared spectroscopy, this study examined whether young children who attended an immersion second-language program demonstrated enhanced cognitive shifting and lateral prefrontal activation. Data and analysis: We recruited children ( N = 24) who attended an international nursery school, and examined whether their performance on cognitive shifting, and whether the oxygenated hemoglobin changes in the prefrontal regions during the task, were correlated with the children’s second-language verbal age and the length of time the children had been speaking the second language. Findings: Results revealed that the verbal age of the second language and the length of time speaking it were significantly correlated with behavioral performances of cognitive shifting tasks. However, they were not correlated with the activations in the lateral prefrontal regions. Originality: We examined the neural correlates of bilingual effects on cognitive shifting and prefrontal activations in young children. Implications: The results suggest that second-language experience may not be directly related to neural processing in the lateral prefrontal cortex, at least in young children.

scholarly journals Use of Functional Near Infrared Spectroscopy to Assess Syntactic Processing by Monolingual and Bilingual Adults and Children

2021 ◽  
Vol 15 ◽  
Author(s):  
Guoqin Ding ◽  
Kathleen A. J. Mohr ◽  
Carla I. Orellana ◽  
Allison S. Hancock ◽  
Stephanie Juth ◽  
...  
Keyword(s):  
Second Language ◽  
Sentence Processing ◽  
Near Infrared ◽  
First Language ◽  
Response Patterns ◽  
Language Experience ◽  
Hemodynamic Responses ◽  
Functional Near Infrared Spectroscopy ◽  
Syntactic Knowledge ◽  
Adults And Children

This exploratory study assessed the use of functional Near Infrared Spectroscopy (fNIRS) to examine hemodynamic response patterns during sentence processing. Four groups of participants: monolingual English children, bilingual Chinese-English children, bilingual Chinese-English adults and monolingual English adults were given an agent selection syntactic processing task. Bilingual child participants were classified as simultaneous or sequential bilinguals to examine the impact of first language, age of second-language acquisition (AoL2A), and the length of second language experience on behavioral performance and cortical activation. Participants were asked to select the agent of four types of sentences: subject-verb-object (SVO), passive (PAS), subject-extracted relative clause (SR), and object-extracted relative clause (OR) adopted from the “Whatdunit” task by Montgomery et al. (2016). Semantic cues were removed by using inanimate nouns for agents and patients, which constrained participants to make decisions based on syntactic knowledge. Behavioral results showed greater accuracy for canonical SVO and SR sentence types than for noncanonical OR and PAS sentence types, which aligns with prior studies. Neuroimaging results revealed greater hemodynamic responses to relative clauses (i.e., SR and OR sentences) than to simple sentences (SVO and PAS), especially for Chinese-English bilinguals suggesting first-language transfer influencing sentence processing in English. The effects AoL2A and the length of second language experience showed no significant differences between simultaneous and sequential bilinguals or between bilingual adults and children for identifying the correct agent in each sentence. However, neuroimaging results demonstrated greater hemodynamic responses in right dorsolateral prefrontal cortex (DLPFC) and left inferior parietal lobule (IPL) in simultaneous bilinguals compared to sequential bilinguals and greater hemodynamic responses in left and right DLPFC and left IPL among bilingual adults. Different behavioral and neural hemodynamic response patterns afford new insights into the effects of syntactic knowledge on sentence processing.

Language and Cognitive Shifting: Evidence from Young Monolingual and Bilingual Children

2010 ◽  
Vol 107 (1) ◽  
pp. 68-78E ◽  
Author(s):  
Mako Okanda ◽  
Yusuke Moriguchi ◽  
Shoji Itakura
Keyword(s):  
Young Children ◽  
Verbal Ability ◽  
Dimensional Change ◽  
Bilingual Children ◽  
Chronological Age ◽  
Language Experience ◽  
Card Sort ◽  
Bilingual Group ◽  
Dimensional Change Card Sort ◽  
Cognitive Shifting

The relationship between language and cognitive shifting in young children was examined. Specifically, second language experiences from infancy as well as individual differences in monolingual language experience may affect performances on the Dimensional Change Card Sort Task. 54 Japanese-French bilingual children and two groups of Japanese monolingual children participated ( ns = 18). One monolingual group was matched to the bilingual group on verbal ability and chronological age (VC monolingual group) and the other group was matched by chronological age but had higher verbal ability (C monolingual group). The results showed that the groups of children who were bilingual and monolingual with higher verbal ability performed the task significantly better than matched monolingual children. Language experiences may affect cognitive set shifting in young children.

scholarly journals Comparison of Activation in the Prefrontal Cortex of Native Speakers of Mandarin by Ability of Japanese as a Second Language Using a Novel Speaking Task

Healthcare ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 412
Author(s):  
Li Cong ◽  
Hideki Miyaguchi ◽  
Chinami Ishizuki
Keyword(s):  
Second Language ◽  
Prefrontal Cortex ◽  
Cognitive Load ◽  
Near Infrared ◽  
Native Speakers ◽  
Brain Activation ◽  
Brain Regions ◽  
Strong Inhibition ◽  
Functional Near Infrared Spectroscopy ◽  
High Level

Evidence shows that second language (L2) learning affects cognitive function. Here in this work, we compared brain activation in native speakers of Mandarin (L1) who speak Japanese (L2) between and within two groups (high and low L2 ability) to determine the effect of L2 ability in L1 and L2 speaking tasks, and to map brain regions involved in both tasks. The brain activation during task performance was determined using prefrontal cortex blood flow as a proxy, measured by functional near-infrared spectroscopy (fNIRS). People with low L2 ability showed much more brain activation when speaking L2 than when speaking L1. People with high L2 ability showed high-level brain activation when speaking either L2 or L1. Almost the same high-level brain activation was observed in both ability groups when speaking L2. The high level of activation in people with high L2 ability when speaking either L2 or L1 suggested strong inhibition of the non-spoken language. A wider area of brain activation in people with low compared with high L2 ability when speaking L2 is considered to be attributed to the cognitive load involved in code-switching L1 to L2 with strong inhibition of L1 and the cognitive load involved in using L2.

scholarly journals fNIRS Outcomes for a Pilot Clinical Trial Combining Frontal tDCS With Walking Rehabilitation in Older Adults

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 792-793
Author(s):  
David Clark ◽  
Sudeshna Chatterjee ◽  
Jared Skinner ◽  
Paige Lysne ◽  
Samuel Wu ◽  
...  
Keyword(s):  
Older Adults ◽  
Executive Function ◽  
Outcome Measures ◽  
Near Infrared ◽  
Neural Circuits ◽  
Functional Near Infrared Spectroscopy ◽  
Active Complex ◽  
Multiple Tests ◽  
Walking Rehabilitation ◽  
Primary Hypothesis

Abstract This pilot study assessed a novel intervention to enhance both walking and executive function in older adults. The primary hypothesis was that eighteen sessions of frontal lobe tDCS combined with walking rehabilitation would be feasible, safe, and show preliminary efficacy. Eighteen participants were randomized to one of three intervention groups: active tDCS and rehabilitation with complex walking tasks (Active/Complex); sham tDCS and rehabilitation with complex walking tasks (Sham/Complex); or sham tDCS and rehabilitation with typical walking (Sham/Typical). Outcome measures included multiple tests of walking function, executive function, and prefrontal activity during walking as measured by functional near infrared spectroscopy (fNIRS). Of the three groups, the Active/Complex group demonstrated the broadest improvements across outcome measures including for prefrontal activity. The functional range of prefrontal activity in this group was increased considerably, as conceptualized by the Compensation Related Utilization of Neural Circuits Hypothesis. Frontal tDCS is a promising adjuvant to walking rehabilitation.

scholarly journals The association between media multitasking and executive function in Chinese adolescents: Evidence from self-reported, behavioral and fNIRS data

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Jiutong Luo ◽  
Hui Li ◽  
Pui-sze Yeung ◽  
Chunqi Chang
Keyword(s):  
Executive Function ◽  
Near Infrared ◽  
Negative Relationship ◽  
Chinese Adolescents ◽  
Cognitive Tasks ◽  
Media Multitasking ◽  
Behavioral Measures ◽  
Functional Near Infrared Spectroscopy ◽  
Multiple Assessment ◽  
Stroop Tasks

This study examined the association between media multitasking and executive function in Chinese adolescents by comparing heavy/high and light/low media multitaskers, i.e., HMMs and LMMs, with self-reports, behavioral measures and functional near-infrared spectroscopy (fNIRS). The participants were 12 HMMs (media multitasking scores above the 75th percentile) and 10 LMMs (media multitasking scores below the 25th percentile) chosen from a sample of 61 adolescents. Each participant completed a self-reported questionnaire on executive function and three executive function cognitive tasks: 2-back, Color Stroop, and Number-letter Determination) while wearing the fNIRS. The results indicated that: (1) the HMMs showed more impairment in executive function than the LMMs based on questionnaire data analysis; (2) there were no significant differences between the HMMs and LMMs in their performance on the cognitive tasks; and (3) the HMMs showed greater prefrontal activation than the LMMs during the 2-back and Color Stroop tasks. These findings implied that media multitasking might be associated with the reduced effectiveness in the brain areas responsible for executive function. These findings provide evidence of the negative relationship between media multitasking and executive function; and indicated the benefits of using multiple assessment methods in studying this topic.

scholarly journals Tablet Use Affects Preschoolers’ Executive Function: fNIRS Evidence from the Dimensional Change Card Sort Task

2021 ◽  
Author(s):  
Hui Li ◽  
Dandan Wu ◽  
Jinfeng Yang ◽  
Jiutong Luo ◽  
Sha Xie ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Executive Function ◽  
Infrared Spectroscopy ◽  
Near Infrared ◽  
Dimensional Change ◽  
Heavy User ◽  
Functional Near Infrared Spectroscopy ◽  
Card Sort ◽  
The Impact ◽  
Dimensional Change Card Sort

This study aims to examine the impact of tablet use on preschoolers’ executive function during the Dimensional Change Card Sort Task (DCCS) task using the functional near-infrared spectroscopy (fNIRS). Altogether 38 Chinese preschoolers (Mage = 5.0 years, SD = 0.69 years, 17 girls) completed the tasks before the COVID-19 lockdown. Eight children never used tablets, while 16 children were diagnosed as the ‘heavy-user'. The results indicated that: (1) the 'Non-user' outperformed the 'Heavy-user' with a significantly higher correct rate in the DCCS task; (2) the two groups differed significantly in the activation of the prefrontal cortex (BA 9): the 'Non-user' pattern is normal and healthy, whereas the 'Heavy-user' pattern is not normal and needs further exploration.

scholarly journals Response of Prefrontal Cortex to Executive Function Tasks in Early Childhood: An Exploratory Case Study for Childcare

2021 ◽  
Vol 13 (3) ◽  
pp. 12
Author(s):  
Nobuki Watanabe
Keyword(s):  
Elementary School ◽  
Early Childhood ◽  
Prefrontal Cortex ◽  
Executive Function ◽  
Child Support ◽  
Near Infrared ◽  
Brain Activity ◽  
Functional Near Infrared Spectroscopy ◽  
Exploratory Case Study

Executive function (EF) development is remarkable in early childhood. EF is an ability that provides a foundation for future success; accordingly, supporting children during their early childhood is crucial. So far, there have been many findings on EF in early childhood based on behavioral observation. This exploratory case study examines the measurement of prefrontal cortex activity during the performance of EF tasks using functional near-infrared spectroscopy (fNIRS). This study aims to explore the following hypothesis. (1) The prefrontal cortex during early childhood becomes more active as a task becomes more difficult. (2) However, brain activity decreases and stabilizes as time progresses. (3) The evaluation can be easily measured with two-channel fNIRS. Experimental results showed that the preschooler and the child in lower elementary school displayed high levels of brain activity in the order of increasing difficulty in terms of behavioral indicators. Moreover, the preschooler showed higher levels of reaction than the child in lower elementary school. This result is useful and will broaden the perspectives of scholars in the fields of psychology, pedagogy, and neuroscience, those involved in child support.

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