Possible dual effect of synapses that are putatively purely excitatory or purely inhibitory: bases in stability theory and implications for neural network behavior.
Davenport R, Jakobsson E, Gerber B. Possible dual effect of synapses that are putatively purely excitatory or purely inhibitory: bases in stability theory and implications for neural network behavior. Biol Cybern. 1991; 65(1):47-53.