A continuous performance task measuring sustained attention and response inhibition. Participants respond to frequent target stimuli (Go trials) while withholding responses to rare non-target stimuli (No-Go trials).

PEBL Clock Test. An implementation of the Mackworth Clock Test. A sustained visual attention task--Watch for a clock to skip a beat.

The PEBL OddBall Task. A response conflict task where participants respond to red circles and squares appearing on the left or right side of the screen.

Context-dependent sustained attention task. Respond to 'X' only when it follows 'A'. Measures context processing and response inhibition.

Test of sustained attention. Respond to all letters except 'X' by pressing spacebar. Measures attention lapses and false alarms.

Test of sustained vigilance and reaction time. Respond as quickly as possible when a stimulus appears. Widely used in sleep research.

PEBL Test of Attentional Vigilance (TOAV), a version of the TOVA.