Figure 1. Continuous temporal expectancy task (CTET) with distraction.
a. As described in the text (Section 2.2) durations were presented either in the form of a grid that rotated to indicate a new to-be-timed duration, or a square tone. The participant's task was to press the spacebar in response to the longer target duration. b. The distractor manipulation was implemented using a laptop computer oriented 32° to the left of the CTET task computer, and 65 cm from the participant. In the No Distractor condition, the laptop was silent and displayed a solid grey screen. In the Distractor condition, the laptop played 30 second video clips, including the audio component. The illustration here uses the visual CTET; in the auditory version the screen of the main (CTET) computer was grey and the tone played over the computer speakers.