Martin,
Presynaptic input must be strong enough to bring the postsynaptic
membrane potential to threshold. This can be achieved either through
a strong enough pulse, or smaller pulses delivered at high frequency.
This is called temporal summation. did this answer your question?
>It is somehow clear to me that the 'firing of a neuron' prerequisites
>a sufficiently large electric threshold that has been reached by the
>incoming
>signals. Now is there also a temporal threshold for theses signals?
>I.e., a minimum
>time at which the electric stimulation has to be maintained in order to
>trigger
>the firing?
>>Martin
>>-----------------------------------------------------------------
>Martin Lisewski
>MPI fuer Astrophysik
>Karl-Schwarzschild-Str. 1
>85740 Garching, Germany
