A significant difference in the C1 component of visua ERPs in parietal-occipital sites is larger for landmark cueing than discrimination tasks, indicating stronger early recruitment of the visual stream.
Lambert, A. J., & Wootton, A. (2017). The time-course of activation in the dorsal and ventral visual streams during landmark cueing and perceptual discrimination tasks. Neuropsychologia, 103, 1-11. doi: 10.1016/j.neuropsychologia.2017.07.002