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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: JAMA Psychiatry. 2015 Sep 1;72(9):909–916. doi: 10.1001/jamapsychiatry.2015.0276

Figure 1.

Figure 1

Illustration of item-specific and relational test procedures and task stimuli. (A) Fifty-four object pairs were visually presented while participants made either item410 specific encoding responses (Left Panel) or relational encoding responses (Right Panel). Conditions alternated (ABAB) between 6 blocks of 9 trials each, with 4 s.instruction screens between blocks to minimize alternation demands and maintain task set. (B) During item recognition, 54 individual objects from each encoding condition (54 item-specific, 54 relational) were randomly presented with 54 new items, and participants indicated whether each item was “old”. (C) During associative recognition, the 27 original relational encoding object pairs were randomly presented with 27 object pairs that had been changed by pairing items from different relational encoding trials (e.g., the left object from trial 6 and right object from trial 13), and participants indicated whether each object pair had “changed”.