
Accuracy scores for controls (CON, n = 8), patients with hippocampal lesions (H, n = 6), and a patient with large medial temporal lobe lesions (MTL, n = 1) across difficulty levels 5–8. In this condition, participants used a pencil to draw lines between the twin pairs, thereby eliminating the need to hold material in mind as they worked through each display. With this aid, patients performed as well as controls. Brackets show SEM.










