Vigilance decrements in the attentional task.

<p>(<b>A</b>) Median reaction times averaged across subjects for each of the 96 target presentations during the task are shown. Solid line: The robust fit regression showed a significant RT increase/vigilance decrement. (<b>B</b>) On the individual level, participants showed a large variability in their change in RTs during task performance. For each subject, the individual robust fits for the RTs were used to estimate the RT change at the end of the task. For illustration we divided the participants into a group with significant RT increase (red, referred to as ‘attentional impaired’ subjects) and without a significant RT increase (blue, referred to as ‘attentional resilient’ subjects). However, to test the correlation between network parameters and behavioural performance without loss of information, the individual RTs increases were used and tested for a linear relationship.