Conclusions
In actuality, teaching my child to be bilingual is essential for the maintenance of her cultural background, traditions and identity, on the one hand, and the successful integration into the mainstream culture and community, on the other. At the same time, the case of my child will not be exceptional, because, according to the U.S. Census Bureau, about 21 percent of Americans speak a language other than English at home. Of those, three-quarters also report that they speak English “well” or “very well” — a strong indication that they are bilingual (Perry, 2013). Therefore, every fifth child in the US using a language other than English at home and that does not raise any substantial barriers in their communication with their peers and other people.
At the same time, while teaching my child to be bilingual, I should take into consideration specificities of bilingualism. The key difference between bilinguals and monolinguals may be more basic: a heightened ability to monitor the environment (Bhattacharjee, 2012). Speaking two languages may increase blood and oxygen flow to the brain and keep nerve connections healthy—factors thought to help ward off dementia (Perry, 2013). Moreover, researchers point out that the effect is strongest in people who learned a second language before the age of five and in those who are most proficient at their second language (Perry, 2013). Therefore, teaching my child to be bilingual may contribute to the faster progress and the development of language competency and skills in my child along with the overall intellectual progress.
At this point, it is worth mentioning the fact that the bilingual experience improves the brain’s so-called executive function — a command system that directs the attention processes that people use for planning, solving problems and performing various other mentally demanding tasks (Bhattacharjee, 2012). Therefore, teaching my child to be bilingual will contribute to the development of multiple skills and abilities and facilitates her further cognitive development and socialization.
Researchers have used brain imaging techniques like functional magnetic resonance imaging (fMRI) to investigate which brain regions are active when bilingual people perform tasks in which they are forced to alternate between their two languages. For instance, when bilingual people have to switch between naming pictures in Spanish and naming them in English, they show increased activation in the dorsolateral prefrontal cortex (DLPFC), a brain region associated with cognitive skills like attention and inhibition (Marian & Shook, 2012). Consequently, teaching my child to be bilingual is useful for the development of her bilingual skills. In this respect, it is worth mentioning the fact that along with the DLPFC, language switching has been found to involve such structures as the anterior cingulate cortex (ACC), bilateral supermarginal gyri, and left inferior frontal gyrus (left-IFG), regions that are also involved in cognitive control (Marian & Shook, 2012).
In fact, researchers (Perry, 2013) point out that when bilinguals are rapidly toggling back and forth between their two languages — that is, in “bilingual mode” — they show significantly more activity in the right hemisphere than monolingual speakers, particularly in a frontal area called the dorso-lateral prefrontal cortex (the source of the bilingual advantages in attention and control) (Perry, 2013). In such a way, bilingual children stimulate their brain activities more than monolingual children. The contemporary neuroscience research is showing promise for evaluating and treating bilingual patients who lose the ability to produce or understand speech after a brain injury (Perry, 2013). Therefore, the completion of the project will help me to prove the aforementioned findings and to enhance the cognitive development of my child.