ABSTRACT
Activity-dependent long-lasting potentiation in neural tissues originates from studies using sympathetic ganglia obtained from rodents and cats (Volle 1966; Dunant and Dolivo 1968). However, it took nearly a decade aer the term “long-term potentiation” was coined by Bliss and Lomo (1973) in the brain hippocampal formation to describe a similar long-term potentiation in the superior cervical sympathetic ganglia (Brown and McAfee 1982; Briggs et al. 1985b). Later, ganglionic long-term potentiation was demonstrated in sympathetic ganglia from various animal species in vitro and in situ (Brown and McAfee 1982; Briggs et al. 1985a, 1985b; Briggs and McAfee 1988; Briggs et al. 1988; Alonso-deFlorida et al. 1991; Bachoo and Polosa 1992; Weinreich et al. 1995). Another decade later, the existence of a very similar longterm potentiation in the avian parasympathetic ciliary ganglion was reported (Scott and Bennett 1993b). In 1996, serotonin was identied as the neurotransmitter required for induction of long-term potentiation in the rat superior cervical ganglion (Alkadhi et al. 1996).
