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Designing and Evaluating a Haptic System for Biomolecular Education

Designing and Evaluating a Haptic System for Biomolecular Education,10.1109/VR.2007.352478,Petter Bivall Persson,Matthew D. Cooper,Lena A. E. Tibell,S

Designing and Evaluating a Haptic System for Biomolecular Education   (Citations: 11)
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In this paper we present an in situ evaluation of a haptic system, with a representative test population, we aim to determine what, if any, benefit haptics can have in a biomolecular education context. We have developed a haptic application for conveying concepts of molecular interactions, specifically in protein-ligand docking. Utilizing a semi-immersive environment with stereo graphics, users are able to manipulate the ligand and feel its interactions in the docking process. The evaluation used cognitive knowledge tests and interviews focused on learning gains. Compared with using time efficiency as the singlequality measure this gives a better indication of a system's applicability in an educational environment. Surveys were used to gather opinions and suggestions for improvements. Students do gain from using the application in the learning pro- cess but the learning appears to be independent of the addition of haptic feedback. However the addition of force feedback did de- crease time requirements and improved the students understanding of the docking process in terms of the forces involved, as is apparent from the students' descriptions of the experience. The students also indicated a number of features which could be improved in future development.
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    • ...They provide natural manipulation modes of the molecule, and molecular forces are easily interpretable by operators when displayed haptically [2], [3]...

    Aude Bolopionet al. Variable gain haptic coupling for molecular simulation

    • ...Persson and Cooper [9] developed a forcetorque haptic molecular interaction system...

    Xiyuan Houet al. Haptic Rendering Algorithm for Biomolecular Docking with Torque Force

    • ...Its use is recommended for educational purposes [2], [3], but is not limited to academic courses...

    Aude Bolopionet al. Haptic molecular simulation based on force control

    • ...A recent study has shown, however, that a combination of visual and tactile experience has the potential to dramatically accelerate understanding and assimilate concepts [9-11]...
    • ...Force-feedback desktop haptic devices will provide tactile feedback to feel and understand interaction forces in molecular systems giving the students the sense of holding the ligand molecule at their fingertips [11]...

    Olga Sourinaet al. Visual Haptic-Based Biomolecular Docking and Its Applications in E-Lea...

    • ...The application of haptics to proteinligand docking is a growing field, with promising applications in education and research [5, 19, 20, 23, 11, 4, 21]...
    • ...In particular, achieving full feature detection capacity across the entire range of forces is a challenge, an issue also noted in previous work [12, 4, 25, 6, 21]...
    • ...The GROPE project used volumetric grid maps to calculate the protein-ligand interaction force, and several subsequent systems have implemented similar techniques to enable haptic exploration of molecular data [19, 20, 23, 11, 4, 21]...
    • ...AutoDock [7, 18, 17] is an example of an automated docking system, and it also produces the potential grid maps read by the Chemical Force Feedback (CFF) system, a haptic docking system presented in our previous research [4]...
    • ...In our previous work [4] (see section 3), we used a static transfer function with non-linear transfer in the lower region of the force domain and linear transfer above a threshold magnitude of the input force (see equations 1-3)...
    • ...4.1 Static Square to Linear Transfer Function After extensive testing of different static transfer functions, using qualitative assessments from experts in the biomolecular life sciences, the square to linear model was initially chosen for the CFF protein-ligand docking system [4]...
    • ...4.2 History Dependent Transfer Function Surveys administered to students in connection with the work presented in [4] indicated that the static square to linear TF performed reasonably, although there were suggestions that it could be improved...

    Petter Bivall Perssonet al. Improved feature detection over large force ranges using history depen...

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