A summary of the presentation of randomized stimuli. Facilitation phase: one set of 20 pictures were presented three times on two separate occasions (six times total), simultaneously with their auditory names, for repetition (LT prime). Testing phase (during scan): the long-term facilitated set were presented again for naming (LT target); a set of 20 pictures were presented twice - once as a prime along with the auditory name for repetition (ST prime) and then presented again (6 to 12 trials later) for naming (ST target); and one set of 20 unfacilitated pictures were also presented once for naming (UN), along with an additional set of 20 unfacilitated non-critical fillers. * indicates the three main naming conditions of interest - unfacilitated, long-term facilitated and short-term facilitated.
Heath et al. BMC Neuroscience 2012 13:21 doi:10.1186/1471-2202-13-21