Figure 4. Behavioral performance averaged across baseline blocks in which there was no stimulation.

Talker switching significantly disrupts spatial attention, but not nonspatial attention. (A) Results from the main experiment. The left plot shows results for spatial attention, comparing continuous and switching trials; the right plot shows results for nonspatial attention. Error bars represent the across-subject standard error of the means. Double asterisks indicate statistical differences with p<0.001. (B) Results from the control experiment, laid out as in (A).