学习因素对语义信息加工性质的影响

本研究通过两个行为实验，采用句子核证作业，将SAD技术和范畴学习范式有机地结合起来，对语义信息加工进程以及学习因素在其中的作用进行了考察。实验一研究了熟悉性对语义信息加工的影响。结果表明，高熟悉句的部分信息积累具有离散的趋势；低熟悉句的部分信息积累是连续性的。实验二采用范畴学习。并结合SAD技术的句子核证作业．考察了在学习过程中语义加工性质的变化。结果发现：过度学习比初始学习有更多的部分信息积累，并随信号间隔的延长而逐渐增加；过度学习表现出部分信息积累的离散性变化；初始学习则表现出连续累积的趋势。说明学习确实造成了连续性加工向离散性质的过渡。

The Role of Learning in Semantic Information Proccessing

The present study focused on the dynamics of semantic information processing, and the role of familiarity and learning. Two experiments with speed accuracy decomposition, category learning and a conventional reaction time paradigm were conducted to examine how familiarity and learning influenced the dynamic of semantic processing. In Experiment 1 SAD technique was used with the sentence verification task in order to explore the familiarity effect on the available partial informationaccumulations of discrete search and continuous computation mechanisms. The results showed that the high familiarity sentences verification process produced discrete intermediate output of partial information; and the process of low familiarity produced continuous intermediate output of partial information. In order to investigate how familiarity and learning influenced the dynamics of two semantic processing mechanisms, we conducted Experiment 2 in which SAD technique was used with the category learning paradigm. The result showed: 1) the verification of excessive learning sentences produced more partial information accumulation than preliminary learning sentences; 2) the excessive learning sentences produced discrete partial information accumulation function, and the partial information accumulation function of preliminary learning sentences was continuous. Both experiments provided evidences supporting the hypothesis that learning changes the nature of semantic process.