无意识下的文字加工

The mechanism of visual character/word processing is an important research topic in psychological linguistics. Compared with other visual stimuli,the most special feature of visual word is its linguistical feature which leads to the special neural mechanism of word. Recently, scientists found that some invisible information of stimuli could be processed under unconscious condition caused by binocular rivalry ,such as the gender information of invisible human pictures and faces. One of the possible reason is that these information is very important to the evolution and survival of human being, thus may have genetic neural mechanism. Language is thought to have genetic neural mechanism. Therefore, the study of visual word processing under unconscious condition is very important to understand the neural mechanism of word and language. In this project,based on our previor study,we will conduct behavioral,ERP and fMRI experiments to investigate the visual orthography, phonology and semantic processing of visual word under unconsious condition.

对文字加工机制的研究是心理语言学的热点之一。文字本身所携带的语言学信息使其与其他物体相比具有独特的大脑加工机制。近来，科学家们发现，被试在一种通过双眼竞争制造的无意识条件下也能够对刺激所携带的一些重要信息进行加工，如裸体图片的性别及面孔的情绪信息。研究者认为这些信息对人类生存具有重要意义，可能存在着某种具有遗传特征的潜在大脑加工机制。语言本身是存在大脑遗传特性的，而文字是携带语言学信息的重要载体，对双眼竞争导致的无意识条件下文字的加工进行研究对于了解文字的神经机制以及语言的大脑机制具有重要意义。在本项目中，我们将在前期研究的基础上，通过结合行为学、脑电技术及功能磁共振成像技术，从字形、语音、语义加工多个方面，对双眼竞争导致的无意识条件下文字的加工进行系统研究。