Figure 1
A schematic depiction of the experimental procedure. Adaptation Phase (left): Participants adapted to two asynchronous streams of duration stimuli presented left and right of fixation. Each stream consisted of repetitions of a single duration (i.e. 200 ms on the left, 800 ms on the right). In each stream ~10% of presentations consisted of duration oddballs with a shorter or longer duration. The participants’ task was to maintain fixation and detect duration oddballs on one side (left or right) for the full duration of the adaptation phase. Duration Judgment Phase (right): Participants completed a duration judgment task in which they compared the duration of an auditory reference to that of a visual test stimulus. To maintain adaptation, a short top-up oddball detection phase preceded the duration judgment.
