Page 102 - Demo

Chapter 4100category was accompanied by horizontal sliders ranging from %u2018not at all%u2019 to %u2018very much%u2019 and participants had to move the slider to indicate their judgment. The values of the sliders ranged from 0 to 100 in steps of 10 (0, 10, 20, etc.), which were not visible to the participants. The next screen contained three questions: (1) %u2018How intense was the expression displayed in the video?%u2019 to measure perceived emotional intensity; (2) %u2018Are you confident about your decision?%u2019 to measure confidence in own performance; and (3) %u2018Did you find the trial simple?%u2019 to measure simplicity (Zwick & Wolkenstein, 2017). Again, all questions were accompanied by a slider ranging from %u2018not at all%u2019 to %u2018very much%u2019 with underlying values ranging from 0 to 100 in steps of 10. Thus, higher scores indicated higher ratings on perceived intensity, confidence, and simplicity, respectively. After the second question screen, a grey inter-trial interval (ITI) screen appeared for three seconds. In total, the participants completed 60 trials, rating all stimuli from the first task, plus three additional practice trials showing a different individual to familiarize them with the task. After 30 trials, participants could take a self-paced break and the entire facial emotion recognition task lasted approximately 25 to 30 minutes. A visualization of one facial emotion recognition trial can be found in Fig. 1. Figure 1. Illustration of a Facial Emotion Recognition task trial. Each trial started with a fixation screen and ended with an intertrial interval (ITI) screen. The dotted line indicates that this sequence was repeated until all 60 videos were presented once.Importantly, only the ratings on the association of the displayed expression with the expression categories (first question screen) and the confidence ratings on the second screen were relevant to answer our hypotheses. As we did not formulate