Date of Award


Degree Type


Degree Name

Master of Education




Dr. Daniel Ansari


The aim of the present thesis was to bridge the gap between neuroscience and education by

exploring the cognitive and neural functions of numerical magnitude processing in 3rd and 4th gradechildren. First,thedevelopmentofthebehaviouralnumericalratioeffectwasexplored

over three testing sessions, as well as its relationship to individual differences in math achievement. Second,duringthethirdtestingsession,theneuralcorrelatesoftheratioeffect wererelatedtomathperformance. Thelongitudinalresultsrevealthattheratioeffectdecreased over time indicating children develop a precise representation of numerical magnitude with age, and this developmental trajectory is negatively correlated with math achievement scores. A significant effect of ratio was found in the prefrontal cortex and the intraparietal sulcus which was positively correlated with math achievement scores. These findings suggest that there is a relationship between the behavioural and neuronal correlates of basic numerical magnitude

processing and individual differences in math achievement.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.