Janos Vörös: Katalogdaten im Herbstsemester 2021

NameHerr Prof. Dr. Janos Vörös
LehrgebietBioelektronik
Adresse
Inst. f. Biomedizinische Technik
ETH Zürich, GLC F 12.1
Gloriastrasse 37/ 39
8092 Zürich
SWITZERLAND
Telefon+41 44 632 59 03
Fax+41 44 632 11 93
E-Mailjanos.voros@biomed.ee.ethz.ch
URLhttp://www.lbb.ethz.ch
DepartementInformationstechnologie und Elektrotechnik
BeziehungOrdentlicher Professor

NummerTitelECTSUmfangDozierende
227-0085-38LProjekte & Seminare: Controlling Biological Neuronal Networks Using Machine Learning Belegung eingeschränkt - Details anzeigen
Findet dieses Semester nicht statt.
Nur für Elektrotechnik und Informationstechnologie BSc.

Die Lerneinheit kann nur einmal belegt werden. Eine wiederholte Belegung in einem späteren Semester ist nicht anrechenbar.
3 KP2PJ. Vörös
KurzbeschreibungDer Bereich Praktika, Projekte, Seminare umfasst Lehrveranstaltungen in unterschiedlichen Formaten zum Erwerb von praktischen Kenntnissen und Fertigkeiten. Ausserdem soll selbstständiges Experimentieren und Gestalten gefördert, exploratives Lernen ermöglicht und die Methodik von Projektarbeiten vermittelt werden.
LernzielThe way memory and learning is achieved in the brain is an unsolved problem. Due to its relative simplicity, in-vitro neuroscience can help us discover the fundamentals of information processing in the brain. For this we can simulate a small number of biological neurons on top of an array of microelectrodes. Such an approach allows us to simulate the electrical activity of the neurons when they get stimulated.

Following this approach, we can investigate biological neural networks, that have about 5-50 neurons and a controlled network architecture. Still, their behavior remains highly unpredictable. Therefore, it is not yet clear how such networks need to be stimulated electrically in order to control their behavior. However, we can use machine learning to find a mapping between a stimulus and a desired response. More specifically, we can use reinforcement learning, since finding the right stimulation pattern is an instance of the so called multi-armed bandit problem.

This P&S consists of two parts. In the first part we will introduce you to the way neurons can be simulated. You will learn how neurons work and how they communicate. The second part will be about machine learning. We will discuss the basics of both artificial neural networks (ANN) and reinforcement learning. As homework exercises you will implement a reward function for a provided reinforcement learner, which will control your biological networks. In addition you will
implement an ANN, that replaces unsatisfactorily performing stimulation patterns with new patterns, that this network evaluates to perform better.

If the current situation will allow, the developed ANNs will be tested on real neurons in our laboratory.

This P&S will be given in English. In total, the P&S takes 8 afternoons and about 50 hours of homework (ANN implementation).
227-0386-00LBiomedical Engineering Information 4 KP3GJ. Vörös, S. J. Ferguson, S. Kozerke, M. P. Wolf, M. Zenobi-Wong
KurzbeschreibungIntroduction into selected topics of biomedical engineering as well as their relationship with physics and physiology. The focus is on learning the concepts that govern common medical instruments and the most important organs from an engineering point of view. In addition, the most recent achievements and trends of the field of biomedical engineering are also outlined.
LernzielIntroduction into selected topics of biomedical engineering as well as their relationship with physics and physiology. The course provides an overview of the various topics of the different tracks of the biomedical engineering master course and helps orienting the students in selecting their specialized classes and project locations.
InhaltIntroduction into neuro- and electrophysiology. Functional analysis of peripheral nerves, muscles, sensory organs and the central nervous system. Electrograms, evoked potentials. Audiometry, optometry. Functional electrostimulation: Cardiac pacemakers. Function of the heart and the circulatory system, transport and exchange of substances in the human body, pharmacokinetics. Endoscopy, medical television technology. Lithotripsy. Electrical Safety. Orthopaedic biomechanics. Lung function. Bioinformatics and Bioelectronics. Biomaterials. Biosensors. Microcirculation.Metabolism.
Practical and theoretical exercises in small groups in the laboratory.
SkriptIntroduction to Biomedical Engineering
by Enderle, Banchard, and Bronzino

AND

https://lbb.ethz.ch/education/biomedical-engineering.html
227-0393-10LBioelectronics and Biosensors Information 6 KP2V + 2UJ. Vörös, M. F. Yanik
KurzbeschreibungThe course introduces bioelectricity and the sensing concepts that enable obtaining information about neurons and their networks. The sources of electrical fields and currents in the context of biological systems are discussed. The fundamental concepts and challenges of measuring bioelectronic signals and the basic concepts to record optogenetically modified organisms are introduced.
LernzielDuring this course the students will:
- learn the basic concepts of bioelectronics
- be able to solve typical problems in bioelectronics
- learn about the remaining challenges in this field
InhaltLecture 1. Introduction to the field of bioelectronics and its challenges

Sources of bioelectronic signals
L2. Membrane and Transport
L3. Action potential and Hodgkin-Huxley
L4. Action potential and Hodgkin-Huxley 2

Measuring bioelectronic signals
L5. Detection and Noise
L6. Measuring currents in solutions, nanopore sensing and patch clamp pipettes
L7. Measuring potentials in solution and core conductance
L8. Measuring electronic signals with wearable electronics, ECG, EEG
L9. Measuring mechanical signals with bioelectronics

In vivo stimulation and recording
L10. Functional electric stimulation
L11. In vivo electrophysiology

Optical recording and control of neurons (optogenetics)
L12. Measuring neurons optically, fundamentals of optical microscopy
L13. Fluorescent probes and scanning microscopy, optogenetics, in vivo microscopy

L14. Measuring chemical signals
SkriptThe course has its own script including the exercises.
Voraussetzungen / BesonderesThe course requires an open attitude to the interdisciplinary approach of bioelectronics.
In addition, it requires undergraduate entry-level familiarity with electric & magnetic fields/forces, resistors, capacitors, electric circuits, differential equations, calculus, probability calculus, Fourier transformation & frequency domain, lenses / light propagation / refractive index, pressure, diffusion.
KompetenzenKompetenzen
Fachspezifische KompetenzenKonzepte und Theoriengeprüft
Verfahren und Technologiengeprüft
Methodenspezifische KompetenzenAnalytische Kompetenzengeprüft
Entscheidungsfindunggefördert
Medien und digitale Technologiengefördert
Problemlösunggeprüft
Projektmanagementgefördert
Soziale KompetenzenKommunikationgefördert
Kooperation und Teamarbeitgefördert
Kundenorientierunggefördert
Menschenführung und Verantwortunggefördert
Selbstdarstellung und soziale Einflussnahmegefördert
Sensibilität für Vielfalt gefördert
Verhandlunggefördert
Persönliche KompetenzenAnpassung und Flexibilitätgefördert
Kreatives Denkengefördert
Kritisches Denkengefördert
Integrität und Arbeitsethikgefördert
Selbstbewusstsein und Selbstreflexion gefördert
Selbststeuerung und Selbstmanagement gefördert
227-0970-00LResearch Topics in Biomedical Engineering
Findet dieses Semester nicht statt.
0 KP1KK. P. Prüssmann, S. Kozerke, M. Stampanoni, K. Stephan, J. Vörös
KurzbeschreibungCurrent topics in Biomedical Engineering presented by speakers from academia and industry.
LernzielGetting insight into actual areas and problems of Biomedical Engineering an Health Care.