Visualizing 3D imagery by mouth using candy-like models

Area of Science:

• Biochemistry
• Education Technology
• Neuroscience

Background:

• Traditional 3D models are often large and difficult to handle, posing challenges for students with visual impairments.
• The mouth possesses highly sensitive tactile sensors, yet its potential in tactile learning remains largely unexplored.
• Current tactile learning methods for molecular structures are limited in portability and cost-effectiveness.

Purpose of the Study:

• To investigate the efficacy of using the mouth for tactile exploration of microscopic three-dimensional (3D) protein molecule models.
• To compare the accuracy and recall of structure identification using the mouth versus hands and eyesight.
• To develop portable, inexpensive, and disposable 3D models for enhanced molecular visualization.

Main Methods:

• Created bite-size 3D protein molecule models from gelatin and nontoxic resin, comparable in size to a rice grain.
• Coded models with flavors and packaged them like candy for enhanced sensory engagement.
• Assessed identification accuracy and recall of specific molecular structures using the mouth, hands, and eyesight.

Main Results:

• Students achieved 85.59% accuracy in recognizing structures using their mouths, comparable to recognition via computer animation.
• Mouth-based recall accuracy surpassed hand-based recall for 40.91% of students, was equal for 31.82%, and lower for 27.27%.
• The developed models are portable, inexpensive, and disposable, facilitating widespread accessibility.

Conclusions:

• The mouth serves as an effective and underutilized sensory organ for tactile learning of 3D molecular structures.
• Flavor-coded, bite-size 3D models offer a novel, accessible, and engaging method for scientific visualization.
• This approach has the potential to significantly improve 3D imagery accessibility for diverse student populations, including those with visual impairments.