形声字识别的大脑功能偏侧化：声旁在左与在右字的影响
发布时间：2019-01-27 23:17
【摘要】：以声旁在左和在右的汉字形声字为刺激材料,以声旁位置、字频和规则性为变量,采用词汇判断(实验一)和词汇命名(实验二)为实验任务,使用在一侧视野短暂呈现闪烁的刺激光点吸引对侧半球的注意资源、以使另一侧半球单独对注视点处的刺激进行加工的新颖的偏侧化研究范式,来探究声旁位置对汉字形声字识别的影响及这种影响在两半球之间是否有差异,并且考察这种差异在需要较多正字法加工的任务(词汇判断任务)和需要较多语音加工的任务(命名任务)中的表现。 实验一的结果显示：对于真字刺激材料,干扰刺激位置的主效应显著,左干扰条件下的判断反应时短于右干扰条件,而对所有刺激、假字刺激以及真字刺激材料,错误率数据的干扰刺激位置的主效应不显著；实验结果中出现了逆转的规则性效应,以及左干扰-声旁在右字、右干扰-声旁在左字的反应模式的对应关系。实验二的结果显示：反应时数据的干扰刺激位置的主效应不显著,但是错误率数据中的干扰刺激位置的主效应是显著的,右干扰条件下的错误率高于左干扰条件；出现了声旁位置、字频和规则性的交互效应,无论声旁是在左还是在右,高频规则字和高频不规则字的命名时间都没有差异,低频的声旁在左的不规则字命名快于规则字、低频的声旁在右的规则字命名快于不规则字。 实验结论有：在词汇判断任务中,大脑对声旁在左和声旁在右字的加工,分别采用右半球(右干扰条件)和左半球(左干扰条件)的加工模式；在命名任务中,声旁位置和字频共同影响规则性的表现,声旁在左低频字出现了规则性效应的逆转、声旁在右的低频字出现的是规则性效应；左半球是词汇加工的优势半球,表现在左半球既具有一定的正字法加工的能力又在语音信息的加工上具有一定的优势；字频是汉字形声字的一种重要的整字属性,频率效应在所有的情况下都会表现出来,并且高、低频字的规则性效应的表现形式不同。
[Abstract]:The Chinese characters with sound side on left and right were used as stimulus materials, with the position, frequency and regularity of sound side as the variables, and lexical judgment (experiment 1) and vocabulary naming (experiment 2) as experimental tasks. A novel lateralization paradigm for the processing of stimuli at a fixed point on the other side of the visual field using a transient flicker of stimuli in one visual field to attract attention resources from the contralateral hemispheres in order to enable the other hemisphere to process the stimuli at the fixation points alone. To explore the effect of the sound side position on the recognition of Chinese phonetic characters and whether there is a difference between the two hemispheres. The difference is also investigated in the tasks that require more orthographic processing (lexical judgment tasks) and tasks requiring more phonological processing (naming tasks). The results of experiment 1 showed that the main effect of interfering position was significant for true word stimuli, and the judging reaction time under left interference was shorter than that under right interference, while for all stimuli, false word stimuli and true word stimuli, the response time was shorter than that of right interference, but for all stimuli, false word stimuli and true word stimuli, The main effect of the interference of the error rate data on the stimulus position was not significant. The experimental results show that there is a regular effect of reversal and the corresponding relationship between the reaction modes of left interference-sound side in right word and right interference-sound side in left word. The results of experiment 2 show that the main effect of the interference stimulus position of the response time data is not significant, but the main effect of the interference stimulus position in the error rate data is significant, the error rate under the right interference condition is higher than that under the left interference condition. There is no difference in the naming time between the high frequency regular word and the high frequency irregular word, regardless of whether the sound side is left or right, and the low frequency irregular word on the left side is faster than the rule word. Regular words with low frequency sound on the right are named faster than irregular characters. The experimental results are as follows: in the lexical judgment task, the right hemisphere (right interference condition) and the left hemisphere (left interference condition) are used in the processing of the right side and the right side of the brain. In the naming task, the sound side position and the word frequency affect the performance of the rule together, the sound side in the left low frequency word appears the regular effect reversal, the sound side in the right low frequency word appears the rule effect; The left hemisphere is the dominant hemisphere in lexical processing, which is manifested in the fact that the left hemisphere not only has the ability of orthographic processing but also has certain advantages in the processing of phonetic information. Word frequency is an important whole character attribute of Chinese phonetic characters. The frequency effect is shown in all cases, and the regular effects of high and low frequency characters are different in form.
【学位授予单位】：南京师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：B842
本文编号：2416797
[Abstract]:The Chinese characters with sound side on left and right were used as stimulus materials, with the position, frequency and regularity of sound side as the variables, and lexical judgment (experiment 1) and vocabulary naming (experiment 2) as experimental tasks. A novel lateralization paradigm for the processing of stimuli at a fixed point on the other side of the visual field using a transient flicker of stimuli in one visual field to attract attention resources from the contralateral hemispheres in order to enable the other hemisphere to process the stimuli at the fixation points alone. To explore the effect of the sound side position on the recognition of Chinese phonetic characters and whether there is a difference between the two hemispheres. The difference is also investigated in the tasks that require more orthographic processing (lexical judgment tasks) and tasks requiring more phonological processing (naming tasks). The results of experiment 1 showed that the main effect of interfering position was significant for true word stimuli, and the judging reaction time under left interference was shorter than that under right interference, while for all stimuli, false word stimuli and true word stimuli, the response time was shorter than that of right interference, but for all stimuli, false word stimuli and true word stimuli, The main effect of the interference of the error rate data on the stimulus position was not significant. The experimental results show that there is a regular effect of reversal and the corresponding relationship between the reaction modes of left interference-sound side in right word and right interference-sound side in left word. The results of experiment 2 show that the main effect of the interference stimulus position of the response time data is not significant, but the main effect of the interference stimulus position in the error rate data is significant, the error rate under the right interference condition is higher than that under the left interference condition. There is no difference in the naming time between the high frequency regular word and the high frequency irregular word, regardless of whether the sound side is left or right, and the low frequency irregular word on the left side is faster than the rule word. Regular words with low frequency sound on the right are named faster than irregular characters. The experimental results are as follows: in the lexical judgment task, the right hemisphere (right interference condition) and the left hemisphere (left interference condition) are used in the processing of the right side and the right side of the brain. In the naming task, the sound side position and the word frequency affect the performance of the rule together, the sound side in the left low frequency word appears the regular effect reversal, the sound side in the right low frequency word appears the rule effect; The left hemisphere is the dominant hemisphere in lexical processing, which is manifested in the fact that the left hemisphere not only has the ability of orthographic processing but also has certain advantages in the processing of phonetic information. Word frequency is an important whole character attribute of Chinese phonetic characters. The frequency effect is shown in all cases, and the regular effects of high and low frequency characters are different in form.
【学位授予单位】：南京师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：B842
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