Wacker Jan, Heldmann Marcus, Stemmler Gerhard
Department of Psychology, University of Marburg, Germany.
Emotion. 2003 Jun;3(2):167-93. doi: 10.1037/1528-3542.3.2.167.
State effects on frontal alpha electroencephalograph asymmetry (ASY) are thought to reflect approach and withdrawal motivational tendencies. Although this motivational direction model has inspired a large body of research, efforts to disentangle influences of emotion (EMO) and motivational direction (MOT) on ASY are rare. The authors independently manipulated EMO (fear and anger) and MOT (approach and withdrawal) in a between-subjects design. Irrespective of MOT, anger led to greater changes toward relative left frontal activation (LFA) than did fear. Conversely, higher ratings of negative valence were associated with greater changes toward LFA in withdrawal but with greater changes toward relative right frontal activation in approach. Results are discussed within a model based on behavioral inhibition system-behavioral activation system theory.
国家对额叶α脑电图不对称性（ASY）的影响被认为反映了趋近和回避的动机倾向。尽管这种动机方向模型激发了大量研究，但很少有人努力去厘清情绪（EMO）和动机方向（MOT）对ASY的影响。作者在一项被试间设计中独立操纵了EMO（恐惧和愤怒）和MOT（趋近和回避）。无论MOT如何，愤怒比恐惧导致了更大的向相对左额叶激活（LFA）的变化。相反，负性效价的较高评分在回避时与向LFA的更大变化相关，但在趋近时与向相对右额叶激活的更大变化相关。结果在基于行为抑制系统 - 行为激活系统理论的模型中进行了讨论。
