Fig. 1.

Stimuli presentation timings per trial and the related epoch window. The trial timing shown in the figure relates to the onset of the stimuli. The length of the audio files of word 1 and word 2 varied between 0.3 and 0.6 s. Stimuli presentation and trigger signals were controlled using E-prime (Schneider et al. 2002). Visual stimuli were presented using a PROPixx projector, and auditory stimuli were presented using the Elekta audio system and MEG-compatible ear phones. Participants’ motor responses were recorded using an NAtA button pad.