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为考察汉语复合词的偏正式、述补式等构词结构信息在视觉识别过程中是否有专门的作用,以及人脑何时识别这些构词结构信息这一问题,采用事件相关电位(event-related potentials,ERP)技术、视觉启动词汇判断实验.探讨启动词-目标词词对的语义(相关/无关)、构词结构(相同/不同)关系,实验发现:①在反应时上表现出极显著的语义启动效应,与启动刺激词语义相关的目标刺激词反应时更短,却未发现显著的构词结构启动效应.②在ERP数据上,额区P2a(150～180ms)仅发现了显著的构词结构启动效应,与启动刺激词构词结构相同的目标刺激词诱发了一个更大波幅的P2a,N400(320～360ms)上仅发现了显著的语义启动效应,与启动刺激词语义无关的目标刺激词诱发了一个更负的N400;且在P2a及N400成分上均未发现显著的构词结构×语义效应.研究认为,在汉语复合词的视觉识别早期阶段存在一个独立于语义的、纯粹的构词结构加工,且P2a(150～180ms)可反映该过程.
In order to investigate whether there is a specific role for the information of word structure, such as partial formal or complement, in the process of visual recognition, and when the human brain recognizes these word structure information, event-related potentials, ERP), and visual activation of vocabularies.Explore the semantic (related / not related) and word-structure (same / different) relationships of the initial word-target word pairs, and found that: ①The reaction time showed extremely significant , The response of target stimuli related to the semantics of stimulus words was shorter, but no significant activation effect of word structure was found.② In ERP data, only significant The activation effect of word structure, which is the same as that of the stimulus word, induces a larger amplitude of P2a. Only significant semantic priming effect is found on N400 (320 ~ 360ms), which is not related to the semantics of stimulus word The target stimuli induced a more negative N400, and no significant word structure × semantic effect was found on the P2a and N400 components.Studies suggest that in the early stage of visual recognition of compound Chinese words, there exists a Independent of the semantic structure pure morphological processing, and P2a (150 ~ 180ms) may reflect the process.