Author: Soeren Kuitunen-Paul (1)
When Habits Are Dangerous: Alcohol Expectancies and Habitual Decision Making Predict Relapse in Alcohol Dependence.Biol Psychiatry 2017 Dec 22;82(11):847-856. Epub 2017 May 22.Miriam Sebold, Stephan Nebe, Maria Garbusow, Matthias Guggenmos, Daniel J Schad, Anne Beck, Soeren Kuitunen-Paul, Christian Sommer, Robin Frank, Peter Neu, Ulrich S Zimmermann, Michael A Rapp, Michael N Smolka, Quentin J M Huys, Florian Schlagenhauf, Andreas Heinz
Addiction is supposedly characterized by a shift from goal-directed to habitual decision making, thus facilitating automatic drug intake. The two-step task allows distinguishing between these mechanisms by computationally modeling goal-directed and habitual behavior as model-based and model-free control. In addicted patients, decision making may also strongly depend upon drug-associated expectations.
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