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Structure of semantic conditioning procedure. (A) Depicts the structure of one conditioning trial (CS+US) in Exp I. One trial consisted of a true or false statement followed by 500 ms of noise and an intertrial interval of 5 s. For this example, an English sentence is presented; nevertheless all sentences were presented in German. (B) Illustrates the experimental procedure of one session. The extinction block was introduced only in the second session.
