June 24, 2017
June 24, 2017
June 28, 2017
Computing & Information Technology
This study investigated the effects of using Model Eliciting Activities that build representational fluency on the cognitive processing of selected cryptography concepts. The study used an experimental design where in the control group the cryptography concepts were taught to 5 participants using two representational forms (language and mathematics) and in the treatment group the same concepts were taught to 5 participant using four representational forms (language, mathematics, graphic and concrete). Cognitive processing was measured using Functional Magnetic Resonance Imaging (fMRI) to determine where in the brain cryptography concepts are processed and whether the use of MEAs focused on representational fluency impacted cognitive processing of cryptography concepts. fMRI image data were gathered from five volunteers by presenting multiple choice questions to the students visually and recording their responses while they were undergoing fMRI scanning. fMRI image analysis from the post-course scans showed common areas of brain activation among the ten fMRI participants that differed based on whether the questions were presented using language, math, or graphical representational forms. This paper discusses the differences in brain activation patterns resulting from each representation, as well as a direction for future work measuring cognitive processing of cryptography concepts in multiple representational forms.
Beckman, J. W., & Dark, M. J., & Kashyap, P., & Bari, S., & Wagstaff, S. S., & Chen, Y., & Yang, B. (2017, June), Cognitive Processing of Cryptography Concepts: An fMRI Study Paper presented at 2017 ASEE Annual Conference & Exposition, Columbus, Ohio. https://peer.asee.org/28045
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