Dynamical Mechanisms for Gene Regulation Mediated by Two Noncoding RNAs in Long-Term Memory Formation

Figure 2

Bifurcation diagram in the parameter plane. The red solid line, red dashed line, blue solid line, blue dashed line, magenta solid line, and magenta dash-dotted line depict the saddle-node bifurcation points (SN), saddle-node invariant circle bifurcation points (SNIC), supercritical Hopf bifurcation points (supH), subcritical Hopf bifurcation points (subH), fold limit cycle bifurcation points (LPC), and homoclinic bifurcation points (HC)), respectively. Three codimension-2 bifurcation points exist: a cusp point (CP), a Bogdanov-Takens bifurcation point (BT), and a generalized Hopf bifurcation point (GH). (b–d) are the enlargement of (a).

(a)

(b)

(c)

(d)