1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
|
These are some combinations of parameters to try using the Neuron Tutorial.
In each case, you should satisfy yourself that you understand what is
happening in the various plots. For more suggestions, consult the file
"exercises.txt".
1) Soma injection of 0.0002 uA (0.2 nA) with no synaptic inputs (default)
2) With no injection currents, provide a set of spikes 10 msec apart from
source A (the default) to the excitatory input of dendrite compartment #1
(the one closest to the soma). Use a weight of 10 synaptic connections.
3) Decrease the spike interval from source A to 2 msec and repeat the above
experiment. Toggling the "overlay" button to set overlay mode to ON and
then clicking on "RESET" before clicking on "STEP" will allow you to more
readily compare the two cases. Try to understand what is happening in
some detail.
4) Repeat the above experiment using an additional inhibitory input to
dendrite compartment #1 from source B. Use a weight of 10 synaptic
connections and set the source B spike interval to 2 msec.
5) Provide a pulse of negative injection current to the soma (-0.0002 uA)
Examine and explain the soma plots after the end of the hyperpolarizing
pulse.
6) Make use of the "Cable Compts." dialog box to devise a situation in which
a comparatively weak inhibition applied to dendrite #1 close to the soma
supresses a stronger excitation applied to the distal dendrite section #2.
|