The University of Alabama, United States.
Int J Psychophysiol. 2018 May;127:46-51. doi: 10.1016/j.ijpsycho.2018.03.002. Epub 2018 Mar 2.
Based on Reinforcement Sensitivity Theory (Gray and McNaughton 2000), human behavior is influenced by systems of approach motivation, avoidance motivation, and a third regulatory system presiding over the other two. These systems mediate action and are likely related to neurophysiological markers of motor-action preparation. Previous research has found that lower levels of beta activity over the motor cortex are associated with greater motor-action preparation. The current study sought to test whether trait approach, avoidance, and regulatory control would relate to resting beta activity over the motor cortex, a measure of motor-action preparation. One hundred twenty-eight individuals completed measures of trait behavioral approach motivation and trait behavioral avoidance motivation (BIS/BAS; Carver and White 1994), as well as regulatory control (UPPS-P Impulsive Behaviour Scale; Whiteside et al. 2005). Then, resting EEG was recorded. Greater trait approach was negatively associated with resting beta activity. In contrast, greater trait impulsivity was associated with greater resting beta activity. Lower levels of resting beta activity in the motor cortex appear to be associated with traits related to deliberate motivated motor behaviors. Trait motor-action preparation seems to be an indicator of tendencies toward planful motivated behavior.
基于强化敏感性理论（Gray 和 McNaughton，2000），人类行为受到趋近动机系统、回避动机系统和控制前两者的第三个调节系统的影响。这些系统调节行为，可能与运动准备的神经生理标记物有关。先前的研究发现，运动皮质的β活动水平较低与更大的运动准备有关。本研究旨在测试特质趋近、回避和调节控制是否与运动皮质的静息β活动有关，这是运动准备的一个测量指标。128 名个体完成了特质行为趋近动机和特质行为回避动机（BIS/BAS；Carver 和 White，1994）以及调节控制（UPPS-P 冲动行为量表；Whiteside 等人，2005）的测量。然后，记录了静息 EEG。更大的特质趋近与静息β活动呈负相关。相比之下，更大的特质冲动与更大的静息β活动相关。运动皮质的静息β活动水平较低似乎与与深思熟虑的动机行为相关的特质有关。特质运动准备似乎是有计划的动机行为倾向的指标。
