As you know, even in a noisy room, our brain is able to focus on one of the interlocutors. The features of such a mechanism were described by Edmund Lalor, Ph.D., assistant professor in the department of neurobiology and biomedical engineering at the University of Rochester Medical Center. The research results were published in The Journal of Neuroscience.
A team of scientists in the course of the study found out how the brain allows you to hear the speech of one person in a noisy crowd. It turned out that the brain simply performs additional actions in order to recognize the words of the desired person, and does not perform these actions in the case of others who are in the crowd.