Bilingual Children Have Better Working Memory

A study conducted at Spain’s University of Granada and the University of York in Toronto, Canada, has revealed that bilingual children develop a better working memory – the ability to hold, process, and update information over short periods of time – than monolingual children. The working memory plays a major role in the execution of a wide range of activities, such as mental calculation (since we have to remember numbers and operate with them), and reading comprehension (given that it requires associating the successive concepts in a text).

The objective of the study – published in the latest issue of the Journal of Experimental Child Psychology– was to examine how multilingualism influences the development of the “working memory” and investigating the association between the working memory and the cognitive superiority of bilingual people found in previous studies.

Executive Functions

The working memory includes the structures and processes associated with the storage and processing of information over short periods of time. It is one of the components of the so-called “executive functions” ‑ a set of mechanisms involved in the planning and self-regulation of human behavior. Although the working memory is developed in the first years of life, it can be trained and improved with experience.

According to the principal investigator of this study, Julia Morales Castillo, of the Department of Experimental Psychology of the University of Granada, this study contributes to better understand cognitive development in bilingual and monolingual children. “Other studies have demonstrated that bilingual children are better at planning and cognitive control (i.e. tasks involving ignoring irrelevant information or requiring a dominant response). But, to date, there was no evidence on the influence of bilingualism on the working memory.

The study sampled bilingual children between five and seven years of age – a critical period in the development of the working memory. The researchers found that bilingual children performed better than monolingual children in working memory tasks. Indeed, the more complex the tasks the better their performance. “The results of this study suggest that bilingualism does not only improve the working memory in an isolated way, but affects the global development of executive functions, especially when they have to interact with each other,” Morales Castillo states.

Music Education

According to the researcher, the results of this study “contribute to the growing number of studies on the role of experience in cognitive development”. Other studies have demonstrated that children performing activities such as music education have better cognitive capacities. “However, we cannot determine to what extent children perform these activities due to other factors such as talent or personal interest. But, the children in our study were bilingual because of family reasons rather than because of an interest in languages.”


  1. Excellent – this should be given to every teacher, administrator, parent, and politician as evidence of the benefits of bilingual education
    and allowing cchildren to keep learning their home language while learning another.

  2. Born in the Netherlands I was Lucky to learn 4 foreign languages while growing up (English, French, German and Spanish). I loved to be able to communicate with people of different nationalities. And not only that, it gives you the opportunity to learn about different cultures.

    I now run a Spanish Language School in Spain, and it is good to see that parents sign up their children for Spanish immersion programs, so they can interact with the locals, and experience the culture. To broaden their horizons!

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