highly significantp = 0.0002
The LMM over HbO revealed both a highly significant main effect of Condition ( F (2, 437) = 8.59, η p 2 = 0.04, p = 0.0002), indicating that overall activations differed across Speech, Song and Hummed melody, as well as a significant Condition × Trial interaction ( F (2, 438) = 4.61, η p 2 = 0.02, p = 0.0104) (Fig. 4 ), indicating different trends between conditions across the time course of the experiment.