Before revision:  Networks with instantaneous chemical synapsesdisplay a well-known bifurcation scenario characterized by a codimension-2 Cusp point and , thus, by the presence of persistent asynchronous states for strong  excitatory coupling.
After revision:  Networks with instantaneous chemical synapsesdisplay a well-known bifurcation scenario characterized by a codimension-2 Cusp point and persistent states for strong excitatory coupling.