Mestres-Missé Anna, Münte Thomas F, Rodriguez-Fornells Antoni
University of Barcelona, Spain.
J Cogn Neurosci. 2009 Nov;21(11):2154-71. doi: 10.1162/jocn.2008.21171.
The meaning of a novel word can be acquired by extracting it from linguistic context. Here we simulated word learning of new words associated to concrete and abstract concepts in a variant of the human simulation paradigm that provided linguistic context information in order to characterize the brain systems involved. Native speakers of Spanish read pairs of sentences in order to derive the meaning of a new word that appeared in the terminal position of the sentences. fMRI revealed that learning the meaning associated to concrete and abstract new words was qualitatively different and recruited similar brain regions as the processing of real concrete and abstract words. In particular, learning of new concrete words selectively boosted the activation of the ventral anterior fusiform gyrus, a region driven by imageability, which has previously been implicated in the processing of concrete words.
一个新单词的含义可以通过从语言语境中提取来习得。在此，我们在一种人类模拟范式的变体中模拟了与具体和抽象概念相关的新单词的学习过程，该变体提供语言语境信息，以表征所涉及的脑系统。以西班牙语为母语的人阅读句子对，以便推导在句子末尾出现的新单词的含义。功能磁共振成像显示，学习与具体和抽象新单词相关的含义在性质上是不同的，并且与处理真实的具体和抽象单词时所募集的脑区相似。特别是，学习新的具体单词选择性地增强了腹侧前梭状回的激活，该区域由可想象性驱动，此前已被认为与具体单词的处理有关。
