Neural signatures of number processing in human infants: evidence for two core systems underlying numerical cognition.
Neural signatures of number processing in human infants: evidence for two core systems underlying numerical cognition.
复制标题
人类婴儿数量处理的神经特征：两个核心系统的证据。
DOI：
10.1111/j.1467-7687.2010.00987.x
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发表时间：
2011-03
影响因子：
3.7
通讯作者：
Spelke ES
中科院分区：
文献类型：
--
作者：
Hyde DC;Spelke ES
行为研究表明，两个认知系统是数字思维的基础：一个是平行表示1-3个物体，另一个是表示和比较大的近似数值。我们通过记录6-7.5个月大的婴儿（n = 32）在数字交替范式中观察包含小（1-3）或大（8-32）组对象的点阵列时的事件相关电位（ERP），测试了言语前婴儿这些系统的可分离神经特征。如果小数字和大数字由相同的神经系统表示，那么大脑对阵列的反应应该与两个数字范围的比率成比例，这是在动物和成年人中获得的近似数值幅度系统的行为和大脑特征。与此预测相反，中潜伏期的积极性（P500）顶叶头皮网站调制连续大，但不小，数字之间的比率。相反，枕颞部位的早期峰值阳性（P400）由小而非大的数字的绝对基数值调制。这些结果为两个早期发展的非语言数字认知系统提供了证据：一个是对小数量作为个体对象的反应，另一个是对大数量作为近似数值的反应。这些大脑特征在功能上与之前对成年人非符号数字的研究中观察到的相似，这表明这种分离可能会在经验和正规数学训练的巨大差异中持续存在。
Behavioral research suggests two cognitive systems are at the foundations of numerical thinking: one for representing 1-3 objects in parallel and one for representing and comparing large, approximate numerical magnitudes. We tested for dissociable neural signatures of these systems in preverbal infants, by recording event-related potentials (ERPs) as 6-7.5 month-old infants (n = 32) viewed dot arrays containing either small (1-3) or large (8-32) sets of objects in a number alternation paradigm. If small and large numbers are represented by the same neural system, then the brain response to the arrays should scale with ratio for both number ranges, a behavioral and brain signature of the approximate numerical magnitude system obtained in animals and in human adults. Contrary to this prediction, a mid-latency positivity (P500) over parietal scalp sites was modulated by the ratio between successive large, but not small, numbers. Conversely, an earlier peaking positivity (P400) over occipital-temporal sites was modulated by the absolute cardinal value of small, but not large, numbers. These results provide evidence for two early developing systems of non-verbal numerical cognition: one that responds to small quantities as individual objects and a second that responds to large quantities as approximate numerical values. These brain signatures are functionally similar to those observed in previous studies of non-symbolic number with adults, suggesting that this dissociation may persist over vast differences in experience and formal training in mathematics.
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影响因子：
64.8
作者：
DEHAENELAMBERTZ, G;DEHAENE, S
通讯作者：
DEHAENE, S
影响因子：
4
作者：
Cordes, Sara;Brannon, Elizabeth M.
通讯作者：
Brannon, Elizabeth M.
影响因子：
9.8
作者：
Cantlon JF;Brannon EM;Carter EJ;Pelphrey KA
通讯作者：
Pelphrey KA
影响因子：
3.2
作者：
Dehaene, S
通讯作者：
Dehaene, S
影响因子：
2.9
作者：
Ansari, D;Dhital, B;Siong, SC
通讯作者：
Siong, SC