  We study a stochastic process describing the continuous time evolution of the
membrane potentials of finite system of neurons in the absence of external
stimuli. The values of the membrane potentials evolve under the effect of {\it
chemical synapses}, {\it electrical synapses} and a \textit{leak current}. The
evolution of the process can be informally described as follows. Each neuron
spikes randomly following a point process with rate depending on its membrane
potential. When a neuron spikes, its membrane potential is immediately reset to
a resting value. Simultaneously, the membrane potential of the neurons which
are influenced by it receive an additional positive value. Furthermore, between
consecutive spikes, the system follows a deterministic motion due both to
electrical synapses and the leak current. Electrical synapses push the system
towards its average potential, while the leak current attracts the membrane
potential of each neuron to the resting value.
  We show that in the absence leakage the process converges exponentially fast
to an unique invariant measure, whenever the initial configuration is non null.
More interesting, when leakage is present, we proved the system stops spiking
after a finite amount of time almost surely. This implies that the unique
invariant measure is supported only by the null configuration.
