Type

Journal Article

Authors

John Foxe
Paul Michael Dockree
Ian Robertson
Simon P Kelly
Redmond O'Connell
Mark A Bellgrove

Subjects

Philosophy

Topics
cerebral cortex electroencephalography photic stimulation flicker fusion twenty one signal detection psychological adult humans reaction time attention temporal dynamics female human error psychophysics male sustained attention event related contingent negative variation young adult evoked potentials visual steady state visual evoked potential pattern recognition visual spectrum analysis time factors brain mapping physiology neuroscience

Uncovering the Neural Signature of Lapsing Attention: Electrophysiological Signals Predict Errors up to 20 s before They Occur (2009)

Abstract The extent to which changes in brain activity can foreshadow human error is uncertain yet has important theoretical and practical implications. The present study examined the temporal dynamics of electrocortical signals preceding a lapse of sustained attention. Twenty-one participants performed a continuous temporal expectancy task, which involved continuously monitoring a stream of regularly alternating patterned stimuli to detect a rarely occurring target stimulus whose duration was 40% longer. The stimulus stream flickered at a rate of 25 Hz to elicit a steady-state visual-evoked potential (SSVEP), which served as a continuous measure of basic visual processing. Increasing activity in the band (8-14 Hz) was found beginning 20 s before a missed target. This was followed by decreases in the amplitude of two event-related components over a short pretarget time frame: the frontal P3 (3-4 s) and contingent-negative variation (during the target interval). In contrast, SSVEP amplitude before hits and misses was closely matched, suggesting that the efficacy of ongoing basic visual processing was unaffected. Our results show that the specific neural signatures of attentional lapses are registered in the EEG up to 20 s before an error.
Collections Ireland -> Trinity College Dublin -> Administrative Staff Authors (Scholarly Publications)
Ireland -> Trinity College Dublin -> Administrative Staff Authors

Full list of authors on original publication

John Foxe, Paul Michael Dockree, Ian Robertson, Simon P Kelly, Redmond O'Connell, Mark A Bellgrove

Experts in our system

1
John J Foxe
Trinity College Dublin
Total Publications: 43
 
2
Paul M Dockree
Trinity College Dublin
Total Publications: 33
 
3
Ian H Robertson
Trinity College Dublin
Total Publications: 157
 
4
Simon P Kelly
University College Dublin
Total Publications: 42
 
5
Redmond G O'Connell
Trinity College Dublin
Total Publications: 52
 
6
Mark A. Bellgrove
Trinity College Dublin
Total Publications: 35