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网络使用经验对动作动词加工的影响:基于词汇和句子水平的ERP研究

【作者】 任梦璐

【导师】 赵庆柏;

【作者基本信息】 华中师范大学, 基础心理学, 2019, 硕士

【摘要】 随着互联网的普及,网络使用已经对人们的心理和行为产生了深远影响。研究发现,网络使用经验高者对面部动作词汇加工更慢,动名词转换消耗效应消失,序列动作图式回忆效果更差(刘思耘,周宗奎,李娜,2015)。这说明由于具身体验的缺失,长期的网络使用会导致个体对动作动词加工的削弱。随后,有研究通过身体动作训练,考察具身体验在网络使用影响动作动词加工中的作用,结果却发现,相比于网络使用经验低者,网络使用经验高者在加工手部动词时反应更快(周马莉,2017)。后者认为其任务难度相对较低,没有涉及高级认知加工,这可能是二者结果存在差异的原因之一。相对于行为反应时,事件相关电位(ERP)对个体的认知加工活动更加精细敏感。因此,本研究实验一拟采用ERP技术在简单的Oddball范式任务中的应用,验证网络使用经验是否对动作动词加工有减弱。实验一是在词汇水平上,使用Oddball范式的亚型,将刺激分为假词、动词、名词三种,刺激材料比例1:1:4,要求被试进行真假词判断任务。结果发现,在P300成份上网络使用经验与词汇类型存在交互作用,网络使用经验少的被试在动作动词加工时诱发的P300波幅比加工名词时更大;网络使用经验多的被试在动作动词加工和名词加工时诱发的P300则无显著差异。这一结果说明,网络使用经验多的被试不能很好的区分动词和名词,也就是对动作动词加工变得并不敏感。实验一在简单任务中验证了刘思耘等人的结论。如果网络使用经验会削弱个体动作动词加工,那么在句子水平上会不会也产生影响,进而削弱个体的言语能力呢?实验二是在句子水平上,使用句子成分局部畸变的语义违例范式,要求被试判断呈现的主谓宾结构六字短句是否合理通畅,其中谓语为动作动词。结果发现:不同网络使用经验被试在行为上不存在显著差异;在N400成份上仅发现了被试类型与半球的交互作用,而被试类型与句子条件并不存在显著作用。这说明,尽管网络使用经验高的被试对动词加工不敏感,但对动宾短语加工(N400效应)并未表现出与网络使用经验低的被试的显著差异。这可能是语境效应消解了网络使用经验多的个体在动作动词加工上的劣势。

【Abstract】 With the popularity of the Internet,the use of the Internet has had a profound impact on people’s psychology and behavior.The study found that people with high network experience have slower processing of facial movement vocabulary,the switching costs effect between nouns and verbs has disappears,and the recall of the action sequence diagram is even worse(Liu Siyun,Zhou Zongkui,Li Na,2015).This study shows that due to the lack of physical experience,long-term network user will lead to the weakening of individual action verb processing.Later,some studies examined the role of the physical experience in the processing of action verbs in the use of the network through body movement training.The results showed that compared with the low network experience,the high network experience one works faster in the hand verbs processing(Zhou Mali,2017).Zhou believes that the reasons for the difference between the two results is that the difficult of her task is easy and the processing doesn’t involve advanced cognitive processing.Relative to the behavioral response,event-related potentials(ERPs)is more sensitive to fine individual cognitive processing activities.Therefore,this research experiment intends to use ERP technology to verify the weakening of action verb processing in the simple task of Oddball paradigm.The first experiment is to use the subtype of the Oddball paradigm at the vocabulary level to classify the stimulus into three types:false words,verbs,and nouns.The proportion of the stimulus material is 1:1:4,and the subjects are required to perform the task of judging true and false words.It founds that there was an interaction between the network use experience and the vocabulary type on the P300 component.According to the less experience in network,the P300 volatility induced by the action verb processing was greater than the noun processing.But there was no significant difference in P300 induced during verb processing and noun processing.This result shows that participants with more experience in network use do not distinguish between verbs and nouns well,that is,they are not sensitive to the processing of action verbs.Experiment 1 verified the conclusions of Liu Siyun and etc.in a simple task.If the experience of network use will weaken the processing of action verbs,will it also have an impact at the sentence level,which will weaken the individual’s speech ability?The second experiment is to use the semantic violation paradigm of the local distortion of the sentence component at the sentence level,and ask the subject to judge whether the six-word short sentence of the subject-predicate structure is reasonable and unobstructed,and the predicate is the action verb.The results showed that there was no significant difference in behavior between the different network users.On the N400 component,only the interaction between the type of the subject and the hemisphere was found,and the type of the subject and the sentence condition did not have a significant effect.This shows that although the participants with high network experience are not sensitive to verb processing,the dynamic phrase processing(N400 effect)does not show significant differences from those with low network experience.This may be a contextual effect that dispels the disadvantages of individuals with more experience in network use in action verb processing.

【关键词】 网络使用经验动词加工语境ERP
【Key words】 network use experienceverb processingcontextERP
  • 【网络出版投稿人】 华中师范大学
  • 【分类号】B842.3
  • 【下载频次】66
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