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  • Periodic Report Summary 1 - VISUOQUANT (The role of visuospatial working memory in quantities representation and arithmetic: Neuroanatomical and behavioral evidence from typical and a-typical development.)

Periodic Report Summary 1 - VISUOQUANT (The role of visuospatial working memory in quantities representation and arithmetic: Neuroanatomical and behavioral evidence from typical and a-typical development.)

Over the last two decades, converging evidence has indicated that human infant and primates are born with innate abilities to represent quantities 1-4. However, the relation between these innate representations and the cognitive mechanisms that underlie typical and atypical school arithmetic abilities is still largely unknown.
The present research will point to the critical role of primitive spatial representation of quantities (a mental model of quantities or representation of quantities on the mental number line) in numerical cognition, supported by the mechanism of visuospatial working memory (VSWM). The present work would like to examine the role of VSWM memory in typical and atypical development of number processing, from several novel perspectives
(1) Development: How are the spatial representations of numbers built? What is the role of VSWM in the development of spatial representations of numbers? Here, we are currently testing second, third and fifth grade children both three tasks: a VSWM task (the Corsi block tapping task), the number line estimation task, which tests the mapping between space and quantities and arithmetic task (addition problems and solution strategies). We are currently collecting data at schools in the area of Jerusalem.
(2) Neuroanatomy: What are the neuro-cognitive mechanisms related to VSWM that underlie numerical processing? We took two groups of participants with high or low VSWM capacity. During a functional magnetic resonance imaging scan (fMRI), participants performing the number line estimation task, two additional VSWM tasks and a numerical comparison task. We are currently collecting data for this experiment, data from twenty participants already been collected.
(3) Learning disabilities: Understanding the role of VSWM in the etiology of developmental dyscalculia (DD): evidence from training in DD. Here we would like to train VSWM, by computer program developed for the current study, and test the effect of VSWM training on numerical abilities in a group of participant with DD. We have already developed the computer program and recruited the group of participants. The aim is to strait training next year.

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Contact

Hani Ben-Yehuda, (Coordinator for Europe)
Tel.: +972 2 6586676
Fax: +972 2 5881311
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Subjects

Life Sciences
Record Number: 199425 / Last updated on: 2017-06-21
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