两岁儿童利用身体部位信息快速识别动词

Two-Year-Olds Use Body Part Information to Speed up Verb Comprehension

汉语儿童早期习得动词和身体部位具有较一致的联结关系,但儿童在动词理解中是否能利用这种信息尚不清楚。本研究选取32名两岁儿童和32名成人,要求他们在听到目标动词时,在一张目标图和一张分心图中识别目标词对应的黑白简笔画图片。结果发现,相比一致条件,当分心图与目标图动作发出的身体部位不一致时,儿童和成人都能利用这一信息快速识别动词,该语义效应发生于目标词开始播放后200~650 ms(成人)和300~1800 ms(儿童)时间窗口。研究结果揭示了年幼儿童如何利用语义信息来理解口语动词。

Though Chinese-speaking children could understand and speak many verbs before age 3,few studies examined how young children process these verbs.Previous studies have found that early-learned verbs are associated with specific body regions in both native speakers of English(Maouene,Hidaka,&Smith,2008)and Mandarin Chinese(Chen&Zhu,2014).Yet,whether children could utilize body part information to speed up spoken verb comprehension remains unclear.In the present study,whether semantic factor(i.e.,body part information)and learning factor(i.e.,age)influence young children's and adults'verb comprehension was investigated using the looking-while-listening procedure.A total of 32 two-year-olds and 32 adults participated in a verb comprehension task using a looking-while-listening procedure and the eye tracking approach.Eleven additional children were excluded due to failing to pass drift correction(4 children),losing more than 50%of eye tracking trials(4 children),unwilling to stick marker on their forehead(1 child),experimenter error(1 child),or fussiness(1 child).After the experiment,all children got some stickers as presents,and all adult participants received a small amount of cash as rewards.A 2×2 mixed design was used,two independent variables were:1)semantic distracters(same body region,different body regions;within subjects);2)age groups(children,adults;between subjects).The dependent variables were the ratio of looking at the target side and the looking time of the target side.The results showed that the main effects of the body part consistency(i.e.,semantic distracters)and age group were both significant.The analysis of the looking time ratio to the target side showed that the adults could comprehend action pictures better than children.The adult group could utilize multiple clues,including target onset and semantic cues(i.e.,inconsistency of body regions),to recognize target verbs swiftly under both conditions;while the two-year-olds could only use both cues only under the different body regions condition.Moreover,the time course analysis showed a significant effect of body part consistency at 200~650 ms time-window in adults and at 300~1800 ms time-window in two-year-olds in the verb comprehension task.Results showed that:(1)Both two-year-old children and adults could use body part information to understand oral verbs,and adults responded faster than children;(2)In the inconsistent condition,two-year-old children could use the onset information of word pronunciation to quickly infer vocabulary semantics,while adults could do so under both conditions.The results provide an empirical basis for revealing the processing of Chinese verbs by young children and adults.More specifically,since both adults and children as young as two-year-old could use body part information to speed up oral verb comprehension,it suggests that body part information is an important part of verb semantic lexicon from a young age.However,adults are more proficient native speakers who could comprehend verbs faster than young children,while young children are less skillful in this process.