We thank Martin Eimer and three anonymous reviewers for their helpful comments on an earlier version of the manuscript. The Netherlands Organization for Scientific Research (NWO) is gratefully acknowledged for funding this project (grant number 425-20-308).
Varieties of attention in neutral trials: Linking RT to ERPs and EEG frequencies
Article first published online: 28 FEB 2006
Volume 43, Issue 1, pages 113–125, January 2006
How to Cite
Jongen, E. M.M., Smulders, F. T.Y. and van Breukelen, G. J.P. (2006), Varieties of attention in neutral trials: Linking RT to ERPs and EEG frequencies. Psychophysiology, 43: 113–125. doi: 10.1111/j.1469-8986.2006.00375.x
- Issue published online: 28 FEB 2006
- Article first published online: 28 FEB 2006
- (Received March 31, 2005; Accepted November 14, 2005)
- Spatial attention;
- Nonspatial attention;
- Neutral trials;
- EEG frequency bands;
- Single-trial analysis
It is often assumed that when a neutral cue is presented in a spatial cueing task, attention remains at fixation until target onset. We hypothesized that variance in nonspatial attention and switches of attention toward target locations can account for variance in reaction times of neutral trials. Lateralized event-related potentials (ERPs) and changes in electroencephalogram (EEG) frequency bands served as predictor variables in a single-trial logistic regression analysis to predict the direction of spatial attention in cued and neutral trials. The contingent negative variation (CNV) and nonlateralized changes in the alpha band served as markers of nonspatial attention. The direction of attention in cued trials was reliably predicted from single-trial lateralized ERP components. In neutral trials, only evidence for nonspatial attention was found, indicated by increases in the CNV and decreases in alpha preceding targets to which responses were relatively fast.