Item–item similarity in hippocampal subfields based on context and time. Top: we extracted the multivoxel activity patterns per item in the list and computed similarity between items that belonged to the same event (within event similarity) versus items that belonged to different events (across events similarity). We also computed similarity for items that were with temporal distance of one item as well as temporal distance of two or three items. Bottom: patterns were extracted in hippocampal subfields, which were automatically segmented. The image shows segmentation in one participant’s anatomical space.