Inquisit Scripts

Extrinsic Affective Simon Task

The Extrinsic Affective Simon Task (EAST), a measure of implicit attitudes developed by Jan De Houwer (De Houwer, 2003).

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Run Test Online User Manual Sample Data Last Updated: Feb 15, 2016, 2:07PM


De Houwer, J. (2003). The Extrinsic Affective Simon Task. Experimental Psychology, 50, 77-85.

De Houwer, J., Crombez, G., Kostner, E. H. W., De Beul, N. (2004). Implicit alcohol-related cognitions in a clinical sample of heavy drinkers, 35, 275-286.

Huijding, J., de Jong, P. J. (2005). A Pictorial Version of the Extrinsic Affective Simon Task: Sensitivity to Generally Affective and Phobia-Relevant Stimuli in High and Low Spider Fearful Individuals. Experimental Psychology, 52, 289-295.

Ellwart, T., Becker, E. S., Rinck M. (2005). Activation and measurement of threat associations in fear of spiders: an application of the Extrinsic Affective Simon Task. Journal of Behavior Therapy and Experimental Psychiatry, 36, 281-299.

Schmulke, S. C & Egloff, B. (2006). Assessing Anxiety with Extrinsic Simon Tasks, Experimental Psychology, 53, 149-160.

De Jong, P. J., Wiers, R. W., van de Braak, M. Huijding, J. (2007). Using the Extrinsic Affective Simon Test as a measure of implicit attitudes towards alcohol: Relationship with drinking behavior and alcohol problems, 32, 881-887.

Voss, A & Klauer, K. C. (2007). Cognitive Processes in the Extrinsic Affective Simon Task: A Task-Set Switching Account of EAST Effects. Experimental Psychology, 54, 71-82.

Vancleef, L. M. G., Peters, M. L., Gilissen, S. M. P., De Jong, P. J. (2007). Understanding the Role of Injury/Illness Sensitivity and Anxiety Sensitivity in (Automatic) Pain Processing: An Examination Using the Extrinsic Affective Simon Task. The Journal of Pain, 8, 563-572.

Stahl, C. & Unkelbach, C. (2009). Assessing Automatic Activation of Valence: A Multinomial Model of EAST Performance . Experimental Psychology, 54, 99-112.


Jan De Houwer. Ghent University.

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