Behavioral study of affective arousal by pictures on female tonic pain
10.3760/cma.j.issn.1674-6554.2010.08.013
- VernacularTitle:情绪唤醒度对女性持续性疼痛调制的行为学研究
- Author:
Yanling YIN
;
Peipei WANG
;
Zhaoran CHEN
- Publication Type:Journal Article
- Keywords:
Tonic heat pain;
Tonic cold pain;
Affective pictures;
Arousal
- From:
Chinese Journal of Behavioral Medicine and Brain Science
2010;19(8):710-712
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the modulation of affective pictures on experimental tonic cold and heat pain in a behavioral study. Methods Fifteen healthy female subjects went through the tonic cold and tonic heat stimulation when watching the affective pictures in a counter-balanced order after the pictures were grouped into the pleasant, the unpleasant and the neutral picture sets. The pain tolerance time ( PTT ) was recorded.Results The tolerance time was prolonged when watching the pleasant and unpleasant pictures contrast to thatwhen watching the neutral ( Unpleasant ( 146.20 ± 13.68 ) s, Neutral ( 86. 73 ± 12.93 ) s, Pleasant ( 145.27 ±15.99 ) s, F(2,42) = 5.718, P ＜ 0.01 ) ). However, no significant difference was observed in the heat pain test under the different experimental conditions ( Unpleasant ( 74.73 ± 15.78 ) s, Neutral ( 68.80 ± 15.85 ) s, Pleasant ( 78.80± 14.81 )s, F(2.42) =0. 109, P＞0.05) ). A correlation between the residual difference of arousal in pleasant and neutral picture sets and the residual difference of heat PTT in pleasant and neutral picture sets was investigated (r = 0.546, P = 0.035 ). Conclusion Besides the emotional valence,the arousal may be one of the key elements that modulate the tonic pain.
