I recently (well, 25 June 2018) taught a data visualization workshop as part of the Language in Interaction consortium at the Donders Institute in Nijmegen. As part of my workshop, I thought I'd go over some fairly simple ways in which people could customize (or dare I say: improve?) some commonly used plots when analyzing MEG or EEG data. Since it would be a waste to have all that preparation for the workshop go to waste on just the small audience that was there that day, I'll post my code with some explanations here on my blog as well. Today: how to better visualize plots like the event-related potential or field. Or, more generally: how to visualize 1D data over time.