FIG. 5.

Trial-timing sequence for the visual-attention study. Sequences of seven pairs of digits were presented simultaneously for 500 ms each, one sequence inside a pink box (gray in the figure) and one inside an adjacent blue box. Interleaved with the seven pairs of visual digits were six diotic presentations of the nSFOAE-eliciting stimuli, each being 330 ms in duration. Following the last pair of visual digits was a response interval of 2000 ms, during which the subject pressed one of two response keys to indicate which of two sequences of five digits contained the middle five digits of the digit sequence in the pink box. Immediately following was a feedback interval of 200 ms, during which a small symbol was displayed over the correct five-digit choice. In the inattention conditions, the subject pressed a response key immediately after the last nSFOAE stimulus was presented (no digits were displayed). In some conditions, dichotic speech or SSNs were presented simultaneously with the visual digits. [Reprinted with permission from Walsh et al. (2014b).]