Citation

Qiu J, Su Y, Li H, Wei D, Tu S, Zhang Q. Psychophysiology 2010; 47(6): 995-1001.

Copyright

(Copyright © 2010, Society for Psychophysiological Research, Publisher John Wiley and Sons)

DOI

10.1111/j.1469-8986.2010.01017.x

PMID

unavailable

Abstract

Event‐related brain potentials (ERPs) were measured when 24 Chinese subjects performed the classical Stroop task. All of subjects had experienced the great Sichuan earthquake (5/12), with 12 people in each of the Far (Chengdu city) and the Close (Deyang city) earthquake experience groups. The behavioral data showed that the Stroop task yielded a robust Stroop interference effect as indexed by longer RT for incongruent than congruent color words in both the Chengdu and Deyang groups. Scalp ERP data showed that incongruent stimuli elicited a more negative ERP deflection (N400–600; Stroop interference effect) than did congruent stimuli between 400–600 ms in the Chengdu group, while the Stroop interference ERP effect was not found in the Deyang group. Dipole source analysis localized the generator of the N400–600 in the right prefrontal cortex (PFC) and was possibly related to conflict monitoring and cognitive control.