FIGURE 1.

Graphic representation of the EAT task. The EAT presents a serial stream of single color words in incongruent fonts, with the word presented for 900 ms followed by a random inter-trial interval between 1000 and 1500 ms. Participants were trained to respond to each of the words with a single ‘Go trial’ button press, and withhold this response when either of two different circumstances arose. The first was if the same word was presented on two consecutive trials (Repeat No-go), and the second was if the word and color font of the word match (Congruent Stroop No-go). To indicate ‘error awareness’ participants were trained to press the error button on the trial following any commission errors. Adapted from “Neural Mechanisms Involved in Error Processing: A Comparison of Errors Made With and Without Awareness,” by Hester et al. (2005).