Using Eye-Tracking Data to Determine What Biochemistry Students Attend to When Completing a Revised Three-Dimensional Modeling Activity

Kaylee A. Barbee, Hailey Knoeferl, Sienna Freeman, Jenifer Calvert, Adriane B. Randolph, Cassidy Terrell, and Kimberly Linenberger Cortes‚Äč, Department of Chemistry and Biochemistry, Coles College of Business BrainLab, Kennesaw State University, 1000 Chastain Rd NW, Kennesaw, GA 30144

In biochemistry, three-dimensional models are being used to help students comprehend advanced topics within the subject. Because a greater cognitive load is often related to three-dimensional models, learning what raises the cognitive load is critical. From there, measures can be taken to help lower the cognitive load and make the material easier for students to understand. To understand cognitive load in relation to models, students were presented with three-dimensional serine protease models and their substrates and asked to match the clear surface plate to the backbone, and then the substrate to the surface plate. On the substrates, students were asked to place stickers on the locations of each peptide bond and catalytic triad. Students subsequently completed a worksheet related to the task. Tobii Glasses 2 were used to track eye movement while students completed the task. Using Tobii Pro software, heat maps and Areas of Interest (AOIs) were created to indicate what areas of the three-dimensional models showed the highest points of fixation. When reviewing the heat maps and Areas of Interest, the participants primarily visited areas of the surface plate and backbone, but mainly fixated on the catalytic triad within the backbone. When compared to the colored surface plate activity from the year before, these participants focused more on the catalytic triad which could indicate that they were considering the interactions going on in the structure. 

Additional Abstract Information

Presenters: Kaylee Barbee, Hailey Knoeferl

Institution: Kennesaw State University

Type: Poster

Subject: Biochemistry

Status: Approved

Time and Location

Session: Poster 1
Date/Time: Mon 1:30pm-2:30pm
Session Number: 2140