Experiments with Functional Models

Neurosimulator (mode of operation of excitatory synapses)

Ionic permeability of the cell membrane

Principle

The cell membrane controls the transport of nutrients and water into the cell as well as the transport of waste products and water out of the cell. This can be passive, i.e. caused by osmotic processes, as well as active. The aim of this experiment is ...

Model experiment illustrating the development of resting potential (with Cobra4)

Principle and tasks

The potential difference between two electrolyte concentrations separated by a membrane (cellophane or cation permeable) is detected by two silver chloride electrodes and measured with a mV meter. The measured and calculated values are compared.

Neurosimulator: membrane time constant and low-pass filte-ring (with the Cobra3 Basic-Unit)

Principle and tasks:

To use a nerve function model to work onthe following themes:

• The time constant of the nerve membrane and intracellular potential
• The low-pass characteristic of the nerve membrane

What you can le ...

Neurosimulator: mode of operation of excitatory synapses (with the Cobra3 Basic-Unit)

Principle and tasks

To use a nerve function model to work on the following themes:

• The origin of action potentials
• The transformation of stimulation intensity to action potential frequency

What you can learn about

Neurobiology: the nerve cell

Principle and tasks

To use a nerve function model to study the following aspects of a nerve cell: intercellular potential and actionpotential.

What you can learn about

• Comparison between low and high threshold levels
• Comparison b ...

Neurobiology: nerve cell interactions

Principle

To use a nerve function model to study the following aspects of nerve cell interactions with other nerve cells or with motoric and sensoric cells:

Renshaw inhibtion

• Motoneuron signals wit ...

Neurobiology: neural networks

Principle, tasks and what you can learn about:

To use a neve function model to study the following aspects of neural networks:

TRANSIENT (PHASIC) RESPONSES: FOCUS ONVISUALSENSE

• Transient responses: ON neu ...

Neurobiology: complex neural networks