Atypical development of numerical cognition: Characteristics of developmental dyscalculia

2009 ◽  
Vol 24 (4) ◽  
pp. 339-342 ◽  
Author(s):  
Ann Dowker ◽  
Liane Kaufmann
2009 ◽  
Vol 32 (3-4) ◽  
pp. 313-328 ◽  
Author(s):  
Roi Cohen Kadosh ◽  
Vincent Walsh

AbstractThe study of neuronal specialisation in different cognitive and perceptual domains is important for our understanding of the human brain, its typical and atypical development, and the evolutionary precursors of cognition. Central to this understanding is the issue of numerical representation, and the question of whether numbers are represented in an abstract fashion. Here we discuss and challenge the claim that numerical representation is abstract. We discuss the principles of cortical organisation with special reference to number and also discuss methodological and theoretical limitations that apply to numerical cognition and also to the field of cognitive neuroscience in general. We argue that numerical representation is primarily non-abstract and is supported by different neuronal populations residing in the parietal cortex.


2006 ◽  
Author(s):  
Elizabeth M. Brannon ◽  
Jessica F. Cantlon ◽  
Sara Cordes ◽  
Kerry E. Jordan ◽  
Evan L. MacLean ◽  
...  

Author(s):  
Dengfeng Yan ◽  
Jaideep Sengupta

Abstract This research seeks to examine, first, whether and why consumers perceive divisible versus indivisible numbers differently and, second, how such divergent perceptions influence consumer preferences for marketer-created entities associated with divisible versus indivisible numbers. Integrating insights from two different literatures—numerical cognition and loneliness—we propose and find that numbers perceived to be divisible (vs. indivisible) are viewed as having more “connections” and are therefore deemed to be less lonely. Building on these findings and the literature on compensatory consumption, we then propose and demonstrate that a temporary feeling of loneliness increases participants’ relative preference for various targets—products, attributes, and prices—associated with divisible (vs. indivisible) numbers, which are perceived to be relatively more connected and less lonely. It merits mention that our findings are triangulated across a wide variety of numbers, different product categories, and multiple operationalizations of loneliness.


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