Spatial and numerical abilities without a complete natural language

NEUROPSYCHOLOGIA

卷:49

Article

Hyde, Daniel C.¹  Winkler-Rhoades, Nathan¹  Lee, Sang-Ah¹  Izard, Veronique¹  Shapiro, Kevin A.^1,2,3  Spelke, Elizabeth S.¹ 

[1] Harvard Univ, Dept Psychol, Cambridge, MA 02138 USA

[2] Massachusetts Gen Hosp, Dept Neurol, Pediat Neurol Unit, Boston, MA 02114 USA

[3] Childrens Hosp, Div Dev Med, Boston, MA 02115 USA

关键词: Symbol use;    Reorientation;    Geometry;    Counting;    Deaf;   

DOI  :  10.1016/j.neuropsychologia.2010.12.017

来源: Elsevier

【 摘 要 】

We studied the cognitive abilities of a 13-year-old deaf child, deprived of most linguistic input from late infancy, in a battery of tests designed to reveal the nature of numerical and geometrical abilities in the absence of a full linguistic system. Tests revealed widespread proficiency in basic symbolic and non-symbolic numerical computations involving the use of both exact and approximate numbers. Tests of spatial and geometrical abilities revealed an interesting patchwork of age-typical strengths and localized deficits. In particular, the child performed extremely well on navigation tasks involving geometrical or landmark information presented in isolation, but very poorly on otherwise similar tasks that required the combination of the two types of spatial information. Tests of number- and space-specific language revealed proficiency in the use of number words and deficits in the use of spatial terms. This case suggests that a full linguistic system is not necessary to reap the benefits of linguistic vocabulary on basic numerical tasks. Furthermore, it suggests that language plays an important role in the combination of mental representations of space. (C) 2010 Elsevier Ltd. All rights reserved.

【 授权许可】

Free