Table 1.

Five different forms of long-term facilitation in aplysia (25, 26)

	CREB	72-hr time course	Local protein synthesis		Growth
			24 hr	72 hr
Synapse specific	+	+	+	+	+
Capture of synapse specific	+	+	−	+	+
Cell wide	+	−	−	−	−
Capture of cell wide	+	+	ND	+	+
Activity dependent, synapse specific	−	ND	−	ND	−

ND, not determined.