Cognitive tasks during expectation affect the congruency ERP effects to facial expressions.

However, other main effects or interaction did not reach statistical significance [“manipulation of expectation”: F (1, 21) = 2.57, p = 0.124, η p 2 = 0 . 11 ; hemisphere: F (1, 21) = 3.53, p = 0.074, η p 2 = 0 . 14 ; “manipulation of expectation” × facial expression: F (1, 21) = 0.65, p = 0.429, η p 2 = 0 . 03 ; facial expression × congruency: F (1, 21) = 2.30, p = 0.144, η p 2

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