School of Psychology, University of Aberdeen, King's College, Aberdeen, Scotland, UK.
School of Psychology, University of Aberdeen, King's College, Aberdeen, Scotland, UK.
Conscious Cogn. 2024 Oct;125:103763. doi: 10.1016/j.concog.2024.103763. Epub 2024 Oct 5.
Personal relevance exerts a powerful influence on decisional processing, such that arbitrary stimuli associated with the self are classified more rapidly than identical material linked with other people. Notwithstanding numerous demonstrations of this facilitatory effect, it remains unclear whether self-prioritization is a temporally stable outcome of decision-making. Accordingly, using a shape-label matching task in combination with computational modeling, the current experiment investigated this matter. The results were informative. First, regardless of the target of comparison (i.e., friend or stranger), self-prioritization was a persistent product of decision-making across the testing session. Second, a variant of the standard drift diffusion model in which decisional boundaries collapsed gradually over the course of the task best fit the observed data. Third, whereas the efficiency of stimulus processing increased for other-related stimuli during the task, it decreased for self-related material. Collectively, these findings advance understanding of the temporal profile of self-prioritization.
个人相关性对决策过程有强大的影响，例如，与自我相关的任意刺激比与他人相关的相同材料更快地被分类。尽管有大量关于这种促进效应的证明，但自我优先化是否是决策的一个时间稳定的结果仍然不清楚。因此，本实验使用形状-标签匹配任务结合计算建模来研究这个问题。结果很有启发性。首先，无论比较的对象（即朋友或陌生人）是什么，自我优先化都是整个测试过程中决策的一个持久产物。其次，一种标准的漂移扩散模型的变体，其中决策边界在任务过程中逐渐崩溃，最适合观察到的数据。第三，尽管在任务过程中与他人相关的刺激的处理效率提高了，但与自我相关的材料的处理效率却下降了。总的来说，这些发现增进了对自我优先化的时间特征的理解。
