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本文通过对功能变调的研究,利用事象关联电位测定的方法,对大脑认知祈使句和疑问句时产生的脑波是否存在差异,来进一步考察人类认知语气时所产生的脑波及其特征。实验结构表明:听发音相同,语气不同的句子刺激音时,出现的第二N波成分潜时,N波成分明显不同。在听祈使句时,第二N波潜时较早;听疑问句时,第二N波潜时较晚。因此,可以推定,大脑对语气信息的认知不仅是敏感的,而且是独立于语音、语法、词汇独立进行的,并且大脑对一定语气的认知具有相应一定的认知模式。
In this paper, by investigating the change of function, this paper uses the method of phenomenon-related potential to further investigate the brain wave and its characteristics when cognition mood of the human beings is different from the brain waves generated when the cognitive imperative sentence and interrogative sentence of the brain are perceived. Experimental results show that: when listening to sentences with the same pronunciation and different tones, the second N wave component appears latent and N wave components are obviously different. Listening to the imperative sentence, the second N-wave latent earlier; hearing questions, the second N-wave latent late. Therefore, it can be presumed that the brain's cognition of modal information is not only sensitive, but also independent of speech, grammar and vocabulary, and the brain has a certain cognitive mode of cognition of a certain tone.