EEG indices of reward motivation and target detectability in a rapid visual detection task

► Reward motivation modulates preparatory alpha, P3 and CNV amplitude. ► These may be useful as single-trial measures of motivational state. ► Reward motivation and target detectability modulate target P3. ► Modulation of P3 reflects a shift in the distribution of single-trial amplitude. ► These findings have practical implications for the use of EEG in image triage.