Figure 1

Example of stimulus presentation in RSVP (left) and Matrix (right). In both modes, 2nd letter ‘O’ (the target letter) of the word ‘WORLD’ is being spelt, and is highlighted in red. In RSVP mode, letters were presented in rapid succession at central fixation. Participants counted occurrences of the target in the sequence. In Matrix mode, rows and then columns of the letter display were rapidly flashed on and off. Participants counted the number of times the target was flashed.