Neurocognitive start-up tools for symbolic number representations

被引:323
作者
Piazza, Manuela [1 ,2 ,3 ]
机构
[1] CEA SAC DSV DRM Neurospin Ctr, INSERM, U562, Cognit Neuroimaging Unit, F-91191 Gif Sur Yvette, France
[2] Univ Trento, Ctr Mind Brain Sci, I-38068 Rovereto, TN, Italy
[3] Univ Trento, Dipartimento Sci Cogniz & Formaz, I-38068 Rovereto, TN, Italy
关键词
SHORT-TERM-MEMORY; DEVELOPMENTAL DYSCALCULIA; INTRAPARIETAL SULCUS; INDIVIDUAL-DIFFERENCES; PREFRONTAL CORTEX; PARIETAL CORTEX; MENTAL NUMBER; MONKEYS MATCH; HUMAN INFANTS; CHILDREN;
D O I
10.1016/j.tics.2010.09.008
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
Attaching meaning to arbitrary symbols (i.e. words) is a complex and lengthy process. In the case of numbers, it was previously suggested that this process is grounded on two early pre-verbal systems for numerical quantification: the approximate number system (ANS or 'analogue magnitude'), and the object tracking system (OTS or 'parallel individuation'), which children are equipped with before symbolic learning. Each system is based on dedicated neural circuits, characterized by specific computational limits, and each undergoes a separate developmental trajectory. Here, I review the available cognitive and neuroscientific data and argue that the available evidence is more consistent with a crucial role for the ANS, rather than for the OTS, in the acquisition of abstract numerical concepts that are uniquely human.
引用
收藏
页码:542 / 551
页数:10
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