Relationship between receptive vocabulary and the neural substrates for story processing in preschoolers.
Relationship between receptive vocabulary and the neural substrates for story processing in preschoolers.
复制标题
学龄前儿童接受性词汇与故事处理的神经基质之间的关系。
DOI：
10.1007/s11682-014-9342-8
复制
发表时间：
2015
影响因子：
3.2
通讯作者：
CMINDAuthorshipConsortium
中科院分区：
文献类型：
--
作者：
Sroka,MClaire;Vannest,Jennifer;Maloney,ThomasC;Horowitz-Kraus,Tzipi;Byars,AnnaW;Holland,ScottK;CMINDAuthorshipConsortium
左侧额-颞-顶语言网络在成人中已有很好的特点；然而，尽管这是语言快速发展和词汇增长的时期，这一基本网络的神经基础在学龄前几年几乎没有被探索过。我们考察了30名3-5岁学龄前儿童的功能成像与词汇能力和叙事理解能力的关系。在被动听故事任务中，观察到双侧听觉皮质和颞叶上区激活，以及左侧角回和缘上回激活。男孩在右扣带前回和右额上回(SFG)的激活程度高于女孩。最后，词汇得分较高的儿童表现出灰质左侧偏侧化的增加，双侧丘脑、海马体和左侧角回的激活程度更高。这项研究在使用功能磁共振成像将学龄前儿童的左脑语言区域和词汇得分联系起来的方法上是新颖的。
A left-lateralized fronto-temporo-parietal language network has been well-characterized in adults; however, the neural basis of this fundamental network has hardly been explored in the preschool years, despite this being a time for rapid language development and vocabulary growth. We examined the functional imaging correlates associated with vocabulary ability and narrative comprehension in 30 preschool children ages 3 to 5. Bilateral auditory cortex and superior temporal activation as well as left angular and supramarginal gyrus activation were observed during a passive listening-to-stories task. Boys showed greater activation than girls in the right anterior cingulate and right superior frontal gyrus (SFG). Finally, children with higher vocabulary scores showed increased grey matter left-lateralization and greater activation in bilateral thalamus, hippocampus, and left angular gyrus. This study is novel in its approach to relate left-hemisphere language regions and vocabulary scores in preschool-aged children using fMRI.