138 preschool children created faces with manipulable facial components to represent expressed emotions. Proportions selecting appropriate components varied with emotions so the task was perhaps more cognitively demanding than Ekman and Friesen's facial recognition task.
References
1.
EkmanP.FriesenW. V. (1975) Unmasking the face: a guide to recognizing emotions from facial clues. Englewood Cliffs, NJ: Prentice-Hall.