Summary of post-experimental survey.

Synopsis of the post-experimental survey completed by participants Each participant was first asked about whether they experienced any form of discomfort during the procedure, and if so, which type of discomfort. Then they were asked to indicate the degree to which they found themselves paying attention to cue-category contingencies during the scanning session. Their verbal reports (e.g., “never”, not really”, “at the beginning only”, “sometimes”, etc.) were then transferred to a scale ranging from 0 (= “not at all”) to 3 (= “very frequently/always”). No participant reported a score of 3. Participants were then asked whether the faces and the chairs shown during the tasks looked ordinary to them or whether they had something distinctive. Their responses were coded as “yes” if they made observations about differential typicality within that category (e.g., “some of the chairs were quite special”), and with “no” if all items of that category appeared of equal typicality to them (e.g., “all faces looked pretty normal to me, none stood out”). As shown in the total proportions of “yes” responses, typicality manipulations were detected much more often in chairs than faces.

(DOCX)