“…Prior studies of subjective passage of time experience have focused on the effects of high level emotional or cognitive aspects of activities and situations. Passage of time experience has been associated with the current activity, its hedonic value 11 and attentional demands 12 – 14 , the emotional state and the level of anxiety or fear 15 – 17 , as well as expectations 18 , 19 , the recall of experiences 20 and salient contextual factors 8 regarding a specific interval, and assumptions about time (by manipulating external clocks, for a review see 21 ). Nevertheless, the role of low-level stimulus features in modulating the passage of time remains unresolved.…”