在创造性句子或短语利用的过程中,新颖且适当的评估会导致事件相关电位中观察到的不同大脑反应:N400反映了新颖性评估,而后期的负分量标志着适当的处理。当我们快速浏览具有不同新颖性的物体的图片时,我们在图像感知中是否有类似的大脑反应,功能/适当,和享乐价值?为了探索这个问题,向参与者展示了四个具有高或低功能和享乐特性的新颖对象图像,以及普通的产品图片,用指令专心观察和理解每个图像。我们发现新颖性处理与功能价值之间存在明显的分离:相对于普通对象图像,新颖性对象在N2-N400时间窗口中产生负偏转,而具有高功能价值的图像会引起更大的N2和后期负波(LNC),类似于为适当短语找到的后期分量。具有高享乐价值的对象图像,然而,与较小的N1振幅反映的较早的审美偏好相关,但未能引起LNC效应。因此,我们得出结论,新颖性的处理,功能,享乐价值是分离的,并且对享乐主义价值的感知(N1)早于新颖性处理(N400)和功能价值验证(LNC)。
In the process of creative sentence or phrase utilization, novel and appropriate evaluations cause the different brain responses observed in event-related potentials: the N400 reflects the
novelty evaluation, whereas a late negative component marks appropriate processing. Do we have similar brain reactions in image perception when we rapidly browse pictures of objects with different
novelty, functional/appropriate, and hedonic value? To explore this question, participants were presented with four novel object images with high or low functional and hedonic properties, as well as the ordinary product images, with the instruction to attentively observe and understand each image. We found a clear dissociation between processing of
novelty and functional value:
novelty objects produced negative deflections in the N2-N400 time window relative to the ordinary object images, whereas images with high functional value elicited a larger N2 and late negative waves (LNC) resembling the late component found for the appropriate phrases. Object images with high hedonic value, however, were associated with earlier aesthetic preference reflected in smaller N1 amplitudes, but failed to elicit a LNC effect. We therefore conclude that the processing of
novelty, functional, and hedonic value are dissociation, and the perception of hedonic value is earlier (N1) than the
novelty processing (N400) and the verification of functional value (LNC).