GERT: Gradual Emotion Recognition Task


Test for recognition of emotions in a number of gradations.

In this test photographs of faces are presented, in which a certain emotion is depicted in a certain degree. The aim is to recognize the emotion in question as quickly as possible, while making as few errors as possible. Use is made of the validated photo material of Ekman & Friesen (1976), with emotional expressions of 6 emotions (angry, afraid, disgusted, happy, sad and surprised), as well as the neutral facial expression, produced by 10 different actors, with the exclusion of irrelevant information such as color and environment (see photo). By applying the morphing technique, 10 different degrees of emotion have been produced per emotion, with steps of 10%. The researcher can make selective use of certain emotions, actors and gradations in the composition of the test. However, the test can also be set in an animated form in which all gradations are used and an emotion is generated in 10 steps starting with the neutral facial expression up to the 100% expression of the emotion. The transition time of the images (frame time) can be set. Responses can be given with the mouse, keyboard, or touch screen. Feedback on the response (Good or False) can be given both in the practice session and in the actual task. This test has been realized in collaboration with the Pompe Foundation.

In reporting, both data (percent correct, times) are provided per emotion as per actor and grade. An error analysis is also provided in the form of a confusion matrix.

An English language version is available.

Normative data have been collected from TBS patients and healthy volunteers, as well as from students.


  • Ekman,P. & Friesen,W.V. (1976). Pictures of facial affect. Palo Alto, CA: Consulting Psychologists.
  • Brand,N., Von Borries,K. & Bulten,E. (2010). Progress with MINDS, a testmanager for psychological assessment, research and education: applications in the forensic psychiatric domain. In: A.J.Spink, F.Grieco, O.E.Krips, L.W.S.Loyens, P.J.J.Noldus & P.H.Zimmerman (Eds), Proceedings of Measuring Behavior 2010 (Eindhoven, the Netherlands), pp. 396-398.

You may also like…