eLife Assessment
Liu and colleagues' study provides important insights into the neural mechanisms of narrative comprehension by identifying three distinct brain states using a hidden Markov model on fMRI data. The work is compelling, as it demonstrates that the dynamics of these brain states, particularly their timely expression, are linked to better comprehension and are specific to spoken language processing. The study's robust findings, validated in a separate dataset, will be of broad interest to researchers exploring the neural basis of speech and language comprehension, as well as those studying the relationship between dynamic brain states and cognition.