Fig. 1: fMRI experimental design and task procedure.
From: Neural dissociation of attention and working memory through inhibitory control
a The attribute amnesia experiment comprised four runs, each containing 32 trials. In the pre-surprise condition, participants completed 60 regular trials (green triangles), performing a face location-reporting task that required visual search within a stimulus array. Although the face was fully attended and processed within a few hundred milliseconds15,16,17,18,19, participants were instructed to remember only its location. In the post-surprise condition (56 regular trials), participants continued the same location task, but now anticipated identity reports. Surprise trials served as catch trials to monitor face processing and sustain the expectation of face reporting. b In regular trials, participants are instructed to report the location of the face. In surprise trials, participants are instructed to select the target faces and then report the location. The instruction for the location-reporting task is “Press a corresponding number to indicate the location of the face.” The instruction for the face-reporting task is “This is a surprise memory test! Press a corresponding number to indicate which one is the face you just saw.” Example stimuli from the Chinese Affective Face Picture System76, shown for illustration only and used with permission.
