發(fā)布時(shí)間：2019-03-06 07:41

【摘要】：結(jié)合掩蔽啟動范式和ERP技術(shù),利用歧義詞素的加工,本研究探討了歧義詞素語義的激活。根據(jù)歧義詞素類型的不同,將分為兩個(gè)實(shí)驗(yàn)分別進(jìn)行。實(shí)驗(yàn)一中,歧義詞素兩含義使用頻率相當(dāng),無主要含義與次要含義之分,采用3×2兩因素被試內(nèi)設(shè)計(jì),歧義詞素兩含義互為啟動刺激和目標(biāo)刺激,兩變量分別為啟動詞類型(歧義詞素含義1vs.含義2vs.無關(guān)詞)和目標(biāo)詞類型(歧義詞素含義1vs.含義2)。實(shí)驗(yàn)二中,歧義詞素兩含義使用頻率相差較大,有主要含義和次要含義之分,兩變量分別為啟動詞類型(主要含義vs.次要含義vs.無關(guān)詞)和目標(biāo)詞類型(主要含義vs.次要含義),實(shí)驗(yàn)設(shè)計(jì)同實(shí)驗(yàn)一。兩實(shí)驗(yàn)的行為結(jié)果均發(fā)現(xiàn)啟動詞類型和目標(biāo)詞類型存在交互作用,即只有當(dāng)共享詞素同形同義的情況下,目標(biāo)詞的加工才可能被啟動。兩實(shí)驗(yàn)ERP結(jié)果有差異,實(shí)驗(yàn)一的ERP結(jié)果進(jìn)一步肯定了行為結(jié)果,在N250和N400兩個(gè)腦電成分上都發(fā)現(xiàn)了啟動類型和目標(biāo)類型交互作用有關(guān)的效應(yīng),當(dāng)啟動詞和目標(biāo)詞共享詞素同形同義時(shí),同時(shí)引發(fā)了N250和N400的變化;當(dāng)共享詞素同形不同義時(shí),時(shí)程分析時(shí)雖然也發(fā)現(xiàn)了N250的變化,但是N250的效應(yīng)較小,小于同形同義所引發(fā)的N250效應(yīng),持續(xù)時(shí)間也較短。說明了在詞匯識別中歧義詞素語義可以激活,并對目標(biāo)詞加工的早期加工階段發(fā)揮作用。實(shí)驗(yàn)二中,當(dāng)啟動詞和目標(biāo)詞共享詞素時(shí),可引發(fā)N250的變化,啟動類型和目標(biāo)類型的交互作用體現(xiàn)在N400成分上,說明在詞匯加工早期階段可能歧義詞素所有語義都是有激活的,只不過語境信息沒有發(fā)揮選擇作用,但在后期整合中確實(shí)存在語義信息的激活。
[Abstract]:Based on masking priming paradigm and ERP technology, this paper discusses the activation of ambiguous morphemes by means of processing ambiguous morphemes. According to the different types of ambiguous morphemes, they are divided into two experiments. In experiment one, the two meanings of ambiguous morphemes were used in the same frequency, and there was no difference between the main meaning and the secondary meaning. The 3 脳 2 two factors were used to design the ambiguous morphemes, and the ambiguous morphemes were both priming stimuli and target stimuli. The two variables were the priming word type (ambiguity morpheme meaning 1 vs. Meaning 2 vs. And the target word type (ambiguity morpheme meaning 1) and the target word type (ambiguity morpheme meaning 1 vs. Meaning 2). In experiment 2, the frequency of using ambiguous morphemes is quite different, which is divided into main meaning and secondary meaning, and the two variables are the type of priming word (the main meaning vs.). Secondary meaning vs. Independent words) and target word types (main meaning vs. (secondary meaning), experimental design is the same as experiment one. The behavioral results of both experiments show that there is interaction between the priming word type and the target word type, that is, the processing of the target word can be initiated only when the shared morpheme is identical to the same meaning. The results of ERP were different between the two experiments. The results of ERP in experiment 1 further confirmed the behavioral results. Both N250 and N400 EEG components found the effects related to the interaction between the activation type and the target type. When the priming word and the target word share morpheme homonymy, the changes of N250 and N400 are caused at the same time. When shared morpheme isomorphism and different meanings, the change of N250 was also found in time history analysis, but the effect of N250 was smaller than that of N250 caused by isomorphism, and the duration of N250 was shorter. It shows that ambiguity morpheme semantics can be activated in word recognition and play an important role in the early stage of target word processing. In experiment 2, when initiators and target words share morphemes, the change of N250 can be caused. The interaction between start type and target type is reflected in N400 component, which indicates that all semantics of ambiguous morphemes may be activated in the early stage of word processing. However, contextual information does not play a selective role, but there is activation of semantic information in the late integration.
【學(xué)位授予單位】：東北師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：B842

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本文編號：2435331