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四个实验以汉语道序同为实验材料，采用语义启动范式，考察了词素在汉语双字词识别中的作用及其在时间进程上的变化。实验一发现，在ＳＯＡ为１５７毫秒时，逆序词的呈现不但能促进与之有联想关系的目标词（语义启动）的词汇判断时间，而且也能促进其逆序形式的语义联想词（逆序启动）的词汇判断时间，两种启动效应之间没有差异。实验二和实验三则发现在ＳＯＡ分别为３１４毫秒和５７毫秒时，逆序词的呈现只对其联想词的词汇判断有显著的促进作用，而对其逆序形式的联想词的促进作用不显著。实验四在更为严格的实验条件下支持了实验三的结果。研究结论为：１）同素单元的激活在词的识别中起一定作用，但并不是词的识别的必经阶段；２）在时间进程上，词素单元的激活先是由弱到强，然后逐渐减弱，而整词单元的激活为稳定的上升过程；３）词素的位置信息的加工落后于词素单元本身的加工，发生在词汇加工的晚期。
In the four experiments, the Chinese Tao sequence is used as the experimental material, and the semantic activation paradigm is adopted to examine the role of morphemes in recognizing Chinese double words and their changes in time course. Experiment 1 found that when SOA is 157 milliseconds, the presentation of the reverse order word can not only promote the lexical judgment time of the target word (semantic start-up) associated with it, but also promote the semantic associative word (reverse order start-up) Vocabulary to determine the time, there is no difference between the two start-up effects. Experiment two and experiment three found that when the SOA was 314 ms and 57 ms respectively, the presentation of the reverse order words only had a significant promotion on the lexical judgment of the associated words, but not the promotion effect of the reverse order form of the associated words. Experiment 4 supported the results of Experiment 3 under more rigorous experimental conditions. The conclusions are as follows: 1) The activation of allomorphic unit plays a part in the recognition of words, but it is not the necessary stage of word recognition; 2) In the course of time, the activation of morpheme units starts from weak to strong and then gradually Weakened, and the activation of the whole word unit is a stable rising process; 3) the processing of the position information of the morpheme lags behind the processing of the morpheme unit itself and occurs in the late stage of word processing.