Biomedical subjects

Matthias Bauch

Publications and source records attributed to Matthias Bauch.

3 recordsLinked to original sources

PubMed2006

Can design principles of traditional learning theories be fulfilled by computer-based training systems in medicine: the example of CAMPUS.

PURPOSE: Computer-based training (CBT) systems offer the potential to efficiently support modern teaching and learning. However, it is still unknown if a similar efficient learning experience built on sound learning theories and corresponding design principles can be created in the complex health care environment. The purpose of this paper is to analyse to what extent learning theories and corresponding design principles are relevant and can successfully be applied in computer-based training in medicine. METHODS: We use the case-based CBT system CAMPUS as an example for a CBT system currently used to enhance the medical teaching and learning experience. We apply two well-accepted learning theories (Bloom's taxonomy and practice fields) and related design principles to determine to what extent they are relevant and fulfilled in the context of CAMPUS. RESULTS: We demonstrate that in principle these learning theories and design principles can be implemented using computer-based training. However, not all design principles can be fulfilled by the system alone; rather the integration of the system into adequate -- traditional or virtual -- teaching and learning environments is essential. CONCLUSIONS: Traditional learning theories and design principles are a valuable means in designing adequate CBT systems in medicine. They can be successfully implemented in CBT systems for medical education if the system itself is adequately integrated into teaching and learning environments.

Computer-Assisted Instruction↗

PubMed2005

Computer-based Training in Medicine and Learning Theories.

Computer-based training (CBT) systems can efficiently support modern teaching and learning environments. In this paper, we demonstrate on the basis of the case-based CBT system CAMPUS that current learning theories and design principles (Bloom's Taxonomy and practice fields) are (i) relevant to CBT and (ii) are feasible to implement using computer-based training and adequate learning environments. Not all design principles can be fulfilled by the system alone, the integration of the system in adequate teaching and learning environments therefore is essential. Adequately integrated, CBT programs become valuable means to build or support practice fields for learners that build domain knowledge and problem-solving skills. Learning theories and their design principles can support in designing these systems as well as in assessing their value.

Computer-Assisted Instruction↗

PubMed2004

Sympathovagal imbalance in pediatric patients with neurocardiogenic syncope during asymptomatic time periods.

UNLABELLED: The pathophysiology of neurocardiogenic syncope (NCS) is only poorly understood. Several studies indicate that NCS is associated with an imbalance of the autonomic nervous system (ANS). We hypothesized that pediatric patients with NCS exhibit alterations of the neurovegetative status also during asymptomatic time periods. To test this hypothesis the non-invasive method of Heart Rate Variability (HRV)-Analysis was used. METHOD: Holter records (12 channel, 180 Hz; obtained during an asymptomatic 24-hour period) of 32 patients (18 male, 14 female, mean age 14.6 yrs) with a history of syncope and a positive Head-Up tilt (HUT) were compared to the recordings of 33 healthy control subjects (19 male, 14 female, mean age 13.5 yrs) with negative history of syncope and HUT. Time domain and frequency domain features were calculated. Analysis segments were divided in different signal duration groups (1, 3, 6, 24 hours). RESULTS: For all time scales the standard deviation of wavelet coefficients yields the best discrimination properties. Analysis of the total time duration (24h) shows only moderate discrimination (sensitivity 84%, specificity 45%) between patient and controls. However, analysis of 3 and 6 hour segments (starting and 6 a.m.) showed significant discrimination: sigma wave scale 13 (6-9 a.m.) sensitivity 78%, specificity 71%., sigma wave scale 11 (6-12 a.m.) sensitivity 84%, specificity 61%. The best combination of two parameters is denoted by SDNN and sigma wave scale 11 (6-12 a.m.) with sensitivity 70%, specificity 75%. CONCLUSION: The results indicate that during an asymptomatic 24-hour-period patients with NCS exhibit an imbalance of the ANS especially in the morning (6-12 a.m.). The findings suggest a time-dependent increased sympathetic or reduced vagal activity in pediatric patients with NCS. Patients could benefit from a time-adjusted medical therapy with beta-blocking agents.

Adolescent↗