The Change of P3 in Undergraduates with Trait Anxiety During Exam Stress
- VernacularTitle:特质焦虑人群应激条件下ERP中P3的变化
- Author:
Hui MA
;
Jin YAN
;
Zhihong WANG
- Publication Type:Journal Article
- Keywords:
Trait anxiety;
Exam stress;
Event- related potentials (ERPs)
- From:Chinese Journal of Clinical Psychology
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the characters of ERP in undergraduates with different trait anxiety during exam stress. Methods: By the State Trait Anxiety Inventory, one group of 15 undergraduates with high trait anxiety and another group with low trait anxiety were chosen from 200 participants in Band 4 College English Test. Their change of P3 were observed through NeuroScan 32 Channel ERP System during pre- exam and post- exam. Results: The amplitude of P3 of the group with low trait anxiety was enhanced while another group with high trait anxiety had no significant difference after exam; The latency of P3 of the group with low trait anxiety were decreased while another group with high trait anxiety had no significant difference after exam; There weren’t significant differences in amplitude and latency of P3 between high trait anxiety group and low trait anxiety group before exam; There were significant enhance of amplitude of P3 and decrease of latency of P3 in low trait anxiety group after exam as compared with high trait anxiety group. Conclusion: The result suggests different trait anxiety groups have different cognitive functions. When confronting with the same stress.
