Probing reward function in post-traumatic stress disorder with beautiful facial images
- 作者：Igor Elman ; Dan Ariely ; Nina Mazar ; Itzhak Aharon ; Natasha B. Lasko ; Michael L. Macklin ; Scott P. Orr ; Scott E. Lukas and Roger K. Pitman
- 关键词：Stress disorders ; Post-traumatic ; Face ; Beauty ; Reward
- 刊名：Psychiatry Research
- 出版年：2005
- 期刊代码：225_01651781
- 类别：med
- 出版时间：2005
- 卷：135
- 期：3
- 页码：179-183
- 文件大小：96 K
摘要
Reward dysfunction may be implicated in post-traumatic stress disorder (PTSD). This study applied a behavioral probe, known to activate brain reward regions, to subjects with PTSD. Male heterosexual Vietnam veterans with (n = 12) or without (n = 11) current PTSD were administered two tasks: (a) key pressing to change the viewing time of average or beautiful female or male facial images, and (b) rating the attractiveness of these images. There were no significant group differences in the attractiveness ratings. However, PTSD patients expended less effort to extend the viewing time of the beautiful female faces. These findings suggest a reward deficit in PTSD.