Earthworm experiment chamber

Function and Applications

The earthworm experiment chamber is used for non-harming neurophysiological experiments on earthworms. The worm is placed in a channel which can be closed by an acrylic glass cover, which has holes in it for inserting a bristle etc. The channel in which the worm lies has along row of 23 pin electrodes which can be connected to the biological amplifier by means of special cables. The experimental data is displayed either on a computer screen or by a storage oscilloscope. The experiment does not harm the earthworm in any way. Much information can be obtained by using the worm as it is and irritating it with a softbristle. Some phenomena can only be measured, or at least be better measured, however, using electrical stimulation (requires a stimuli generator). For this it is necessary to anaesthetise the worm for a short time.

Equipment and technical data

• Dimensions (cm) 32×6×4

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