Figure 6 : Grand mean probability of happy face percepts (Task1, ordinate) from the first 5 (solid traces) and last 5 (dashed traces) repetitions ± SEM from the Full-Range Condition (red traces) and the Half-Range Condition (blue traces) as functions of the mouth curvature of Mona Lisa variants (abscissa).

From: Mona Lisa is always happy – and only sometimes sad

Figure 6

Sad and happy variants (S1–S8 and S10–S13) of the original Mona Lisa image (S9) were created in Dr. Kornmeier’s lab. C1 = Full-Range Condition; C2 = Half-Range Condition; Reps = Repetitions.