As in many technical processes, in the course of many biological functions the output values act back on the input values. With the many disturbing influences that affect biological systems, a feed-back reaction (control loop) of this type enables an equilibrium to be established (homeostatis). The components of a biological control loop (receptors, neurones, synapses, effectors) require a certain time for the transmission of a signal. This time between the onset of a disturbance (stimulus) and the reaction which it triggers is called the dead time. In this experiment the test subject follows a rectangular curve on a slowly rotating drum, using a felt-tip pen inserted into a slit. In a reaction test the dead time is determined.
- Easy to operate experiment setup in behavioural physiology
- Experiment setup can be used for other experiments as well
- Measurement of dead time in a reaction test.
- Analysis of the transient response.
- Determination of threshold frequency for stimuli.
- Study of the effects of noise and alcohol on reaction capacity.
What you can learn about
- Reaction capacity
- Strobe drum
- Control loop
- Feedback reaction
- Dead time
- Follow-through time
- Threshold frequency