The P300 as a marker of waning attention and error propensity
Citation:Datta A, Cusack R, Hawkins K, Heutink J, Rorden C, Robertson IH, Manly T, The P300 as a marker of waning attention and error propensity, Computational Intelligence and Neuroscience, 7, 3, 2007, Article ID 93968
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Action errors can occur when routine responses are triggered inappropriately by familiar cues. Here, EEG was recorded as volunteers performed a ?go/no-go? task of long duration that occasionally and unexpectedly required them to withhold a frequent, routine response. EEG components locked to the onset of relevant go trials were sorted according to whether participants erroneously responded to immediately subsequent no-go trials or correctly withheld their responses. Errors were associated with a significant relative reduction in the amplitude of the preceding P300, that is, a judgement could be made bout whether a responseinhibition error was likely before it had actually occurred. Furthermore, fluctuations in P300 amplitude across the task formed a reliable associate of individual error propensity, supporting its use as a marker of sustained control over action.
Type of material:Journal Article
Series/Report no:Computational Intelligence and Neuroscience
Availability:Full text available