Misperception of peer beliefs reinforces inequitable gender norms among Tanzanian men.

Gender role ideology, i.e. beliefs about how genders should behave, is shaped by social learning.

Using dialogues to increase positive attitudes towards COVID-19 vaccines in a vaccine-hesitant UK population.

Recently, Altay (Altay . 2021. (doi:10.

Trusting the experts: The domain-specificity of prestige-biased social learning.

Prestige-biased social learning (henceforth "prestige-bias") occurs when individuals predominantly choose to learn from a prestigious member of their group, i.e. someone who has gained attention, respect and admiration for their success in some domain.

Cultural evolution of emotional expression in 50 years of song lyrics.

Popular music offers a rich source of data that provides insights into long-term cultural evolutionary dynamics. One major trend in popular music, as well as other cultural products such as literary fiction, is an increase over time in negatively valenced emotional content, and a decrease in positively valenced emotional content. Here we use two large datasets containing lyrics from = 4913 and = 159,015 pop songs respectively and spanning 1965-2015, to test whether cultural transmission biases derived from the cultural evolution literature can explain this trend towards emotional negativity.

Sex differences in the use of social information emerge under conditions of risk.

Social learning provides an effective route to gaining up-to-date information, particularly when information is costly to obtain asocially. Theoretical work predicts that the willingness to switch between using asocial and social sources of information will vary between individuals according to their risk tolerance. We tested the prediction that, where there are sex differences in risk tolerance, altering the variance of the payoffs of using asocial and social information differentially influences the probability of social information use by sex.