Human brain function in emotional perception

本研究的目的是探讨大脑对情感刺激的反应：1）评估Davis、LeDoux、Morgenson等人定义的动机动物模型作为人脑情感功能设计的有效性; 2）评估目前关于人类情感中皮层差异激活的观点，并检验它们与动机观点的关系; 3）确定大脑对刺激的反应，这些刺激沿着快乐和唤醒的动机参数变化，以及4）评估大脑中动机激活的空间敏感（fMRI）和时间敏感（EEG）测量之间的差异和协变。 综合分析工作的目的是利用每一项措施的独特优势。 在这个过程中，情绪唤起刺激呈现在不同的媒体（即，图片、声音或文本）共享相同的情感内容，以便定义反映情感过程的一致活跃的神经解剖区域，而不是输入或语言中介的方式所特有的部位。 情感内容在操作上由对愉悦和唤醒的评价性判断以及心理生理反应来定义。

The aim of this project is to investigate the brain s response to affective stimuli: 1) to assess the validity of the animal model of motivation defined by Davis, LeDoux, Morgenson, and others, as a design for human brain function in emotion; 2) to evaluate current views of differential cortical activation in human emotion, and examine their relationship to the motivational view; 3) to determine the brain s response to stimuli that vary along the motivational parameters of pleasure and arousal, and 4) to assess differences and covariations between spatially sensitive (fMRI) and temporally sensitive (EEG measures of motivational activation in the brain. An integrative analytic effort will aim to capitalize on each measures unique advantages. In this procedure, emotionally evocative stimuli are presented in different media (i.e., pictures, sounds, or texts) that share the same affective content, in order to define consistently active neuroanatomical regions that reflect affective processes, as opposed to sites unique to modality of input or language mediation. Affect content is operationally defined both by scaled evaluative judgements of pleasure and arousal and by psychophysiological response.