| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6276093 | Neuroscience | 2011 | 7 Pages |
Event-related brain potentials (ERPs) during an emotional Stroop task were measured in two groups of participants: 14 participants who had experienced the great Sichuan earthquake (earthquake group) and 14 participants who did not experience the earthquake (control group). ERP data showed that negative words elicited a more negative P2 than positive words in the earthquake group. Moreover, negative words also elicited a more negative ERP deflection (N280-380 effect) than positive words in the earthquake group, while this effect was not found in the control group. We suggest that the N280-380 effect may reflect heightened emotional arousal to negative words due to personal experience of a traumatic event. Dipole analysis localized the N280-380 to the parahippocampal gyrus and the cuneus, which we suggest may be related to the automatic recollection of the traumatic experience.
â¶Negative words elicited littler P2 than did positive words in the earthquake group. â¶Negative words elicited N280-380 than did positive words in the earthquake group. â¶The N280-380 reflects emotional arousal by negative words.
