In search of a reliable electrophysiological marker of oculomotor inhibition of return.
Bottom Line: EEG studies forbidding eye movements have demonstrated that reductions of target-elicited P1 components are correlated with IOR magnitude, but when eye movements occur, P1 effects bear no relationship to behavior.Behavioral IOR is observed in both conditions, but P1 reductions are absent in the central arrow condition.By contrast, arrow and peripheral cues enhance Nd, especially over contralateral electrode sites.
Affiliation: School of Psychology, Faculty of Science, University of Nottingham Malaysia Campus, Semenyih, Malaysia.Show MeSH
Related in: MedlinePlus
Mentions: Statistical analyses were performed on the P1, N1, and Nd ERP component amplitudes, which were derived from EEG data as described above. The mean ERP amplitudes for each trial type are presented in Table 1, and the grand-averaged ERP waveforms are presented in Figure 2 (central cueing) and Figure 3 (peripheral cueing). Repeated measures ANOVAs and planned comparisons were performed separately for each ERP component and are presented below.
Affiliation: School of Psychology, Faculty of Science, University of Nottingham Malaysia Campus, Semenyih, Malaysia.