The iterative nature of person construal: Evidence from event-related potentials.
The iterative nature of person construal: Evidence from event-related potentials.
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DOI：
10.1093/scan/nsx048
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发表时间：
2017-07-01
影响因子：
4.2
通讯作者：
Bartholow BD
中科院分区：
文献类型：
--
作者：
Volpert-Esmond HI;Merkle EC;Bartholow BD
最近，已经提出了一个动态交互模型的人conciliation（DI模型），其中的社会类别的人表示的基础上确定的迭代集成的自下而上和自上而下的影响。目前的研究试图通过利用事件相关脑电位（ERP）的高时间分辨率来测试这一模型，因为65名参与者观看了因种族而异的男性面孔（白色与黑色），固定在眼睛之间或额头上。在面部呈现中，固定的效果，意味着自下而上的视觉输入的变化，最初是大的，但通过主成分分析（PCA）确定的早期潜伏期神经反应下降。相比之下，种族的影响，反映了自上而下和自下而上的因素相结合，最初是小的，但增加了早期潜伏期的主要成分。这些模式支持DI模型的预测，即自下而上和自上而下的过程被迭代地集成，以在230 ms内达到稳定的一致性。此外，探索性的多层次建模的单次试验ERP反应代表一个组件链接到外群分类（P2）表明在实验过程中的操作效果的变化。DI模型的研究结果的影响被认为是。
Recently, a dynamic-interactive model of person construal (DI model) has been proposed, whereby the social categories a person represents are determined on the basis of an iterative integration of bottom-up and top-down influences. The current study sought to test this model by leveraging the high temporal resolution of event-related brain potentials (ERPs) as 65 participants viewed male faces that varied by race (White vs Black), fixating either between the eyes or on the forehead. Within face presentations, the effect of fixation, meant to vary bottom-up visual input, initially was large but decreased across early latency neural responses identified by a principal components analysis (PCA). In contrast, the effect of race, reflecting a combination of top-down and bottom-up factors, initially was small but increased across early latency principal components. These patterns support the DI model prediction that bottom-up and top-down processes are iteratively integrated to arrive at a stable construal within 230 ms. Additionally, exploratory multilevel modeling of single trial ERP responses representing a component linked to outgroup categorization (the P2) suggests change in effects of the manipulations over the course of the experiment. Implications of the findings for the DI model are considered.