"While previous theories posited that political polarization results from selective consumption (and over-consumption) of news and social media, a team led by researchers at Brown University hypothesized that polarization may start even earlier.

"The new study appears in Science Advances.

"Individuals who share an ideology have more similar neural fingerprints of political words, experience greater neural synchrony when engaging with political content, and their brains sequentially segment new information into the same units of meaning." - Corrie Pikul-Brown

Article: People Who Share Ideology Have Similar ‘Neural Fingerprints’