Figure 2.

Examples of A) High and B) Low perceptual overlap items used in the conditional paired associates task. C) The task structure involves the presentation of a stimulus, followed by a brief delay and then a trial-and-error response phase with feedback. Learning is calculated over time and represented as memory strength. D) Scan structure: 12 total scan runs in 3 phases. The high overlap items in the first and last block were not repeated in the last block.