Federico Gallo

People who are fluent in two or more languages are less susceptible to age-related mental disorders. They more quickly process information and make decisions, have better memories, and can even better identify emotions. Scientists from various countries discussed the influence of a second language on the processes of cognitive aging at the international symposium ‘Bilingualism: Proper Learning, Effective Communication, and Pleasant Old Age’ hosted by HSE University.

An international team of researchers led by scientists from the HSE University have examined the interplay of languages in the brains of bilinguals. Using EEG data of Russian-English bilinguals, the authors were the first to demonstrate nearly instant and automatic detection of semantic similarity between words belonging to their two languages, suggesting the existence of an integrated bilingual lexicon in which words are activated in parallel in both languages. The study findings are published in Cortex.

Medical advances are causing a gradual increase in average life expectancy. However, this comes at a price, as the number of cases of dementia and other neurodegenerative diseases grows with age. Researchers from HSE University (Russia) and Northumbria University (UK) have found that bilingualism can slow down and mitigate the course of age-related changes in the human brain. The study was published in Frontiers in Psychology.