EEG hyperscanning reveals dynamic interbrain network patterns during interactive social decision-making.

Commun Biol · 2026 · PMC13128847 · PMID 41826752

Europe PMC DOI

hedged sentences

0.0580

closest p · 1.2× alpha

0.0670

boldest claim

The sentences

marginally significantp = 0.058so close (0.05 < p ≤ 0.1)

6C ), while the state × condition interaction was marginally significant ( F (1, 71) = 3.72, p = 0.058, η p 2 = 0.050).

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marginal significancep = 0.067so close (0.05 < p ≤ 0.1)

Although the state × condition interaction reached only marginal significance ( F (1, 71) = 3.46, p = 0.067, η p 2 = 0.046), post-hoc comparisons revealed a consistent pattern: fair proposals induced significantly higher interbrain global efficiency than unfair proposals in both state 1 ( t = 3.856, p FDR = 3.34 × 10 -4 , Cohen’s d = 0.454, 95% CI = [0.005, 0.014]) and state 2 ( t = 2.478, p FDR = 0.016, Cohen’s d = 0.292, 95% CI = [0.001, 0.009]).

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