Understanding the mapping between numerical approximation and number words: evidence from Williams syndrome and typical development.
Understanding the mapping between numerical approximation and number words: evidence from Williams syndrome and typical development.
复制标题
理解数值近似和数字词之间的映射：威廉姆斯综合症和典型发展的证据。
DOI：
10.1111/desc.12154
复制
发表时间：
2014
影响因子：
3.7
通讯作者：
Landau,Barbara
中科院分区：
文献类型：
--
作者：
Libertus,MelissaE;Feigenson,Lisa;Halberda,Justin;Landau,Barbara
所有有计算能力的人都可以使用两种数字表示系统：一种是基于语言的精确系统，支持形式数学;另一种是出生时就存在的近似数字系统（ANS），似乎独立于语言。在这里，我们研究这两个系统之间的相互作用，通过比较与威廉姆斯综合征（WS）的人与那些典型的发展中的儿童之间的4和9岁。WS是一种罕见的遗传缺陷，其特征是流利和结构良好的语言，以及严重的空间缺陷，正式数学缺陷和顶叶皮层异常，这被认为有助于ANS。我们的一项任务，需要近似的数字比较，但没有数字词，揭示了WS青少年的ANS精度在典型的2至4岁奥尔兹的范围内。他们的精确度随着年龄的增长而提高，但从未达到6岁或9岁奥尔兹的水平。第二项任务要求使用数字词进行口头数字估计，显示WS青少年产生的估计值与通常发育中的6岁和9岁奥尔兹相当，即比他们的ANS精度更高。这些结果表明，ANS精度是有点分离的近似numerosities和数字词之间的映射，因为前者可以在遗传疾病中严重受损，而后者没有相应的损害。
All numerate humans have access to two systems of number representation: an exact system that is argued to be based on language and that supports formal mathematics, and an Approximate Number System (ANS) that is present at birth and appears independent of language. Here we examine the interaction between these two systems by comparing the profiles of people with Williams syndrome (WS) with those of typically developing children between ages 4 and 9 years. WS is a rare genetic deficit marked by fluent and well‐structured language together with severe spatial deficits, deficits in formal math, and abnormalities of the parietal cortex, which is thought to subserve the ANS. One of our tasks, requiring approximate number comparison but no number words, revealed that the ANS precision of adolescents with WS was in the range of typically developing 2‐ to 4‐year‐olds. Their precision improved with age but never reached the level of typically developing 6‐ or 9‐year‐olds. The second task, requiring verbal number estimation using number words, revealed that the estimates produced by adolescents with WS were comparable to those of typically developing 6‐ and 9‐year‐olds, i.e. were more advanced than their ANS precision. These results suggest that ANS precision is somewhat separable from the mapping between approximate numerosities and number words, as the former can be severely damaged in a genetic disorder without commensurate impairment in the latter.
登录
查看更多内容
患有威廉姆斯综合症的意大利儿童的语言能力
影响因子：
3.6
作者：
V. Volterra;O. Capirci;G. Pezzini;Letizia Sabbadini;S. Vicari
通讯作者：
S. Vicari
影响因子：
2.6
作者：
Farran, Emily K.;Courbois, Yannick;Blades, Mark
通讯作者：
Blades, Mark
患有特纳或脆性 X 综合症的女孩的数学表现
影响因子：
3.7
作者：
M. Mazzocco;M. McCloskey
通讯作者：
M. McCloskey
影响因子：
1.9
作者：
Stromme, P;Bjornstad, PG;Ramstad, K
通讯作者：
Ramstad, K
影响因子：
3
作者：
Mazzocco, MMM
通讯作者：
Mazzocco, MMM