The influence on error monitoring system by the impact of incentives and sleep deprivation

• Main Authors: Tzu-hsien Li, 黎姿嫺
• Other Authors: Shulan Hsieh
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/92231372176512951871

碩士 === 國立中正大學 === 心理學所 === 97 === In this study, through the use of the letters flanker task, we have examined the impact of incentives and sleep deprivation (SD) on the error monitoring system through the application of behavior and event-related potentials (ERPs) such as error-related negativity (ERN), error positivity (Pe), and feedback-related negativity (FRN). A total of 24 participants were enrolled in this study (between-subject design). Their ages were between were 18~23, and they were divided into two groups of 12 subjects each (non-reward and reward groups). Each subject performed a flanker task subsequent to the operation of two different sleep situations (normal sleep situation and complete, whole night sleep deprivation; within-subject design). The outcomes revealed that SD results in a decrease in the response accuracy rate, an increase in the error rate, a slower reaction time, a decrease in the post-error accuracy rate, and an increase in the post-error error rate. The results, according to the data from the ERPs, also revealed that the ERN and Pe amplitudes declined due to SD, while the FRN was not affected. Even with the incentives, there were no signs of upgrades or changes in the post-error adjustment. However, as a whole, the incentives were able to effectively increase the overall performance (such as the rise in the accuracy rate and the drop in the error rate) as well as provide a compensation effect to the brain-related error detection mechanism. In fact, especially after SD, the incentives could still maintain a satisfactory status on the subjects’ overall behavior, and the ERN showed similar data as the normal sleep condition. Synthesizes above, SD will deteriorate in behavior and brain function, but the incentives offer compensation effectiveness, thus resulting in a significant improvement of reaction.