[2P1-OS-26] OS-26

[2P1-OS-26-02] Individual differences in real–fake judgments of fake news are associated with neural response patterns in the precuneus

〇Satoshi Nishida^1,2,3 (1. National Institute of Information and Communications Technology, 2. Osaka University, 3. Hokkaido University)

Keywords:Fake news, Disinformation, Cognitive security, Individual difference, Neural mechanism

How are humans deceived by fake news? To elucidate the neural mechanisms underlying susceptibility to fake news, this study investigated brain regions associated with individual differences in judgments of real versus fake news. For this purpose, we conducted a psychological experiment where participants evaluated the authenticity of various news articles, including those synthesized by AI. Additionally, we measured participants' brain responses during movie viewing to assess the intrinsic response properties of individual brains. We found that individual differences in judgment patterns were correlated with those in brain-response patterns within several brain regions. Among these, the precuneus showed a correlation only with judgments of fake news, not real news. These findings suggest that the precuneus plays a critical role in forming an individual's susceptibility of fake news.