PDF (PhD Thesis Susan Chipchase) - Nottingham eTheses ...

Retrieval phase:
Participants then completed two examples of the retrieval task with
target stimuli from the practice study phase. In each test trial participants were
shown a pair of photographs. One member of the pair (‘the target’) was from
the earlier RSVP, the other member of the pair (‘the distractor’) was from the
corresponding unexposed set. The target and distractor were matched for
valence and arousal. In Experiment 1A participants were asked which picture
they preferred. Participants had to choose the left or the right photograph by
pressing ‘1’ or ‘9’ respectively on the keyboard. The test question and response
keys were shown under each pair of photographs. After the practice examples,
participants completed the test phase for the first valence block. There were 30
test trials for each valence block. Each photo was shown only once in the test
phase. The pair of photos was shown side by side, with the location of the old
item chosen at random. There was a new random order of test trials for each
participant.
After completing the test phase for the first valence block, participants
were shown the study phase for the second valence block. This was in the same
format as the first valence block. Participants then completed the test phase for
the second valence block (but without any example tasks). Participants were
then shown the study phase for the third valence block and then completed the
test phase for the third valence block. The order of the valence blocks of
positive, negative or neutral stimuli was counterbalanced across participants.
Participants were debriefed and thanked for their participation.
Experiment 1B was identical, except that the subjects were asked to
perform a recognition judgement instead of a preference judgement. No
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