argument to pass to
aes to map
variables from the supplied data to the plot
data.frame with data to plot
object of type brain_atlas to plot
hemisphere to plot. Defaults to everything in the atlas.
slice to plot, as recorded in the "side" column in the atlas data. Defaults to all.
position of the data. Default is "identity" but can be
logical. Should legend be added or not.
logical. if aes should be inherited from the main ggplot call or not