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Attractiveness modulates attention814Simple ModelTo test our main prediction that attractiveness would significantly influence RT, we ran a Bayesian mixed model with by-subject mean-centered RT per trial as the dependent variable and the interaction between condition and probe location as independent variables (Table 1; see Appendix G for model stability checks). We found a robust interaction effect of condition and probe location (Figure 3), meaning that people reacted faster on trials in which the probe appeared behind an attractive face than when it appeared behind an intermediate (median difference = 9.23 [2.21], 89% CI [5.67, 12.74], pd = 1.00), while an opposite pattern was found when unattractive faces were paired with intermediate faces (median difference = −6.92 [2.33], 89% CI [−3.29, –10.56], pd = .99).Table 1. Model Output for the Simple Model of Experiment 1. Note: all categorical independent variables were sum-to-zero coded. Parameter Median estimate SD89% CIlower bound89% CIupper boundIntercept 0.17 1.54 -2.26 2.73Probe Location [intermediately attractive] 0.58 0.69 -0.52 1.69Condition [attractive vs. intermediate] -1.88 0.71 -3.02 -0.75Condition [attractive vs. intermediate]: Probe Location [intermediately attractive]4.03 0.88 2.64 5.45Random effectssd [intercept] Trial order 12.36 1.27 10.50 14.54sd [intercept] Subject 0.47 0.42 0.05 1.34sd [by-subject slope] Probe Location [intermediately attractive]0.96 0.82 0.10 2.62sd [by-subject slope] Condition [attractive vs. intermediate] 1.81 1.05 0.26 3.59sd [by-subject slope] Condition [attractive vs. intermediate]: Probe Location [intermediately attractive]6.58 1.04 4.94 8.25Nobs = 11437Nsubj = 150Tom Roth.indd 81 08-01-2024 10:41