I’m setting up a face recognition expt. which has two main phases; a learning phase and a test phase. In the learning phase I need to select, at random, a total of 64 faces (8 faces each from 8 different sets -stimulus lists- of 64 faces). The faces are presented in turn after a fixation cue. The participant studies the faces. No response is necessary. In the test phase I want to present these same ‘seen’ faces along with another randomly selected set of 64 ‘unseen’ faces from the 8 stimulus lists. The participant then has to respond according to whether or not he recognises the faces from the learning phase.
- Is it possible, within SuperLab, to select a random sample of ‘seen’ faces to be shown in the learning phase and then have that same sample repeated (hopefully in a new random order) in the test phase?
- Select a new random sample of ‘unseen’ faces, EXCLUDING the faces that were selected for the learning phase?
- If the above is possible can I present the ‘seen’ and ‘unseen’ faces within the same block in a random order?
I shall look forward to seeing your response!