As a rule, people look immediately and automatically in the same direction when their companion or someone nearby suddenly turns their attention. And it seems rather obvious. In fact, joint attention is an ability that helps people in many areas, such as communication, collaborative activities, etc. But sometimes a person can be deprived of it. We analyse this phenomenon — what is joint visual attention, cases in which this mental function can be disrupted, and what remains a mystery for scientists — in IQ Card Index with the help of HSE researchers Tatiana Shevel and Maria Falikman.
Researchers of the HSE International Laboratory of Statistical and Computational Genomics together with their international colleagues have proposed a new statistical method for analysing population admixture that makes it possible to determine the time and number of migration waves more accurately. The history of Colombians and Mexicans (descendants of Native Americans, Spaniards and Africans) features two episodes of admixture that occurred about 350 and 200 years ago for Mexicans and 400 and 100 years ago for Colombians. The results were published in the Plos Genetics journal.