A formal neuron has been studied mathematically. The spiking behaviour
of a single neuron has been considered and the influence of the other
neurons has been replaced by an average activity level. Four differen
t kinds of spiking behaviour are predicted by the model: B (bursts), C
(continuous), P (periodic) and S (silent) neurons and several real ne
urons can be classified within these four categories. Some properties
of the spiking neuron are calculated: 1) the time between spikes, 2) t
he spike train length and 3) the silent time. Because these magnitudes
can be measured in the laboratory, an experimental validation of the
model is proposed.