REGIONAL BRAIN FUNCTION AND EMOTIONAL REACTIVITY

说明(申请人摘要)：本项目建议使用 多种生理学方法：1)发展一种客观的测量 2)更好地理解情感反应的特征模式 情绪时间进程中个体差异的关系 反应，以及情绪体验背后的神经基础。 尽管情感研究越来越多，但很少有客观的、非自我的报告 情感体验的诱因是存在的，但所做的工作很少。 研究对情绪激发者的反应的时间过程。时间 情绪过程可能是理解的一个非常重要的变量 情感风格的个体差异。例如，个人谁 经历较长时间的负面情绪可能更容易变得焦虑或 情绪低落。为了实现第一个目标，制定一项客观的衡量标准 特质情绪反应、情绪调节惊吓的稳定性 将对反应进行评估，以确定该范例是否适合 可靠性可作为一种类似于性状的指标。第二个目标，理解 情感计时术，将使用具有极端不对称性的主题 额部脑电激活(先前显示与状态和特征有关 影响)，以检查个体差异在时间进程中的皮质和 皮层下脑激活(用FMRl测量)对 充满深情的图片。

DESCRIPTION (Applicant's abstract): This project proposes the use of multiple physiological methods to: 1) develop an objective measure of trait-like patterns of affective responding, and 2) to better understand the relations between individual differences in the time course of emotional reactions, and the neural substrates underlying emotional experience. Despite the growing body of emotion research, few objective, non-self-report induces of emotional experience exist, and very little work has been done examining the temporal course of responses to an emotion elicitor. The time course of emotions may be a very important variable in understanding individual differences in affective style. For example, individuals who experience negative emotions longer may be more likely to become anxious or depressed. To address the first goal, developing an objective measure of trait affective responding, the stability of the emotion-modulated startle response will be assessed to determine whether this paradigm shows suitable reliability for use as a trait -like index. The second goal, understanding the chronometry of emotions, will use subjects with extreme asymmetry of frontal EEG activation (shown previously to be related to state and trait affect) to examine individual differences in the time course of cortical and subcortical brain activation (measured with FMRl) in response to affectively-laden pictures.