Eder Andreas B, Klauer Karl Christoph
Department of Psychology, Friedrich-Schiller-Universitat Jena, Jena, Germany.
J Exp Psychol Gen. 2009 May;138(2):218-35. doi: 10.1037/a0015220.
Three experiments tested the influence of approach- and avoidance-related lever movements on the perception of masked affectively positive and negative stimuli. A motivational account of the bidirectional evaluation-behavior link predicted an enhanced detection of response-compatible stimuli, whereas a common-coding model predicted a reduced evaluative sensitivity toward such stimuli due to feature binding conflicts. The results consistently supported the common-coding explanation. In Experiment 1, detection (d') of positive and negative stimuli was selectively impaired by the generation of congruent approach- and avoidance-related lever movements, respectively. This effect, referred to as action-valence blindness, was replicated in Experiment 2 and shown to depend on the evaluative meaning of the generated movement rather than on the movement per se. Experiment 3 revealed that action-valence blindness depends on a temporal overlap between movement generation and stimulus evaluation. A common-coding link between evaluation and motor behavior is discussed.
三项实验测试了与趋近和回避相关的杠杆动作对被掩盖的情感上积极和消极刺激感知的影响。双向评价-行为联系的动机性解释预测，与反应兼容的刺激的检测会增强，而共同编码模型预测，由于特征绑定冲突，对这类刺激的评价敏感性会降低。结果一致支持共同编码的解释。在实验1中，与趋近和回避相关的杠杆动作分别与正负刺激一致时，对正负刺激的检测（d'）会选择性受损。这种效应被称为动作-效价盲视，在实验2中得到了重复，并表明它取决于所产生动作的评价意义，而不是动作本身。实验3表明，动作-效价盲视取决于动作产生与刺激评价之间的时间重叠。文中讨论了评价与运动行为之间的共同编码联系。
