“Exploring Genetic Contributions to News Use Motives and Frequency of News Consumption: A Study of Identical and Fraternal Twins”, Chance York, Paul Haridakis2020-05-27 (; backlinks; similar)⁠:

Prior research conducted within the Uses and Gratifications paradigm has considered the contribution of numerous background social and psychological characteristics to motives for media use and media consumption patterns. In this study, we explore the extent to which far more fundamental characteristics—genes—explain, in part, motives to use news media and frequency of news use. Using original data collected on identical and fraternal twins (n = 334), we find that latent genetic traits explain a nontrivial amount of variance in two unique news use motives, surveillance and entertainment, as well as frequency of consumption across multiple news sources. Genetic traits were particularly influential in explaining the frequency of using sources commonly characterized as ideological, such as Fox News and CNN.

Figure 3: Summary illustration of univariate AD model results. Illustration generated using the estimates for a2, c2, and e2 shown in Tables 2 and 3. We graph these estimates here to allow for easier comparisons across observed traits. The black bars represent estimates of latent genetic influence (a2). The dark gray bars represent estimates for the common environment (c2). And the light gray bars represent estimates for the unique environment (e2). Bars are sorted in descending order by estimates of a2. See Tables 2 and 3 for exact estimates.