The event-related potentials study on positive emotional Stroop effect in male subjects

• DOI: 10.3760/cma.j.issn.1674-6554.2014.10.018
• Publication Date: 2014-10-20
• Authors: Guoliang Chen; Peng Xu; Shan Lu; Ji‐Jun Chen; Zhongdong Jiang
• Keywords: Stroop effect; Attentional Bias

Objective To study the mechanism underlying attentional biases toward event-related potentials (ERPs) in healthy male subjects.

Methods 18 subjects performed emotional stroop task by pressing buttons to picture border color of two categories including neutral and positive. The RT Accuracy were recorded automatically. ERPs Neuroscan system.

Results The behavioral results showed that neither reaction time(628.11±55.46)ms vs(628.81±53.92)ms nor accuracy (96.87±4.42)% vs (95.76±7.41)% found difference under conditions. positive pictures evoked more greater P2 ((8.16±4.99)μV (4.30±3.83)μV) P3 ((6.31±4.53)μV (4.27±4.16)μV) than pictures.

Conclusion Attentional emotion can be subjects, which related control process.

Key words: Event-related potentials; Positive emotional; Stroop; Attention bias