Table 1.

Post-synaptic targets of identified layer 1 CRet+ SPF cell axonal boutons^*.

Compartment	Local**						Distant**
	sp†	sh†°	cb	ais	?	n (∑)	sp†	sh†°	cb^	ais	?	n (∑)
Abs. N°	22	47	0	0	5	74	15	56	3	0	5	79
%	29.7	63.5	0.0	0.0	6.8	(100)	19.0	70.9	3.8	0.0	6.3	(100)

^*Ultrastructural data derived from 74 “local” and 79 “distant” axonal boutons sampled from five identified CRet+ SPF cells in four animals. Post-synaptic compartments: sp, dendritic spine; sh, dendritic shaft; cb, cell body; ais, axon initial segment; ?, uncertain profile identity (dendritic spine v fine-caliber dendritic shaft). All boutons formed A-type synaptic junctions.

^**All post-synaptic targets were CRet immunonegative (CRet-).

^†“sh/sp” ratio: Local = 2.14; Distal = 3.73.

^°Many of the axodendritic contacts (91/103 = 88%) were onto fine-caliber sparsely spine-bearing dendritic shafts; 12% onto smooth dendritic shafts.

^{^}Three separate cell bodies innervated. All somata received A- and S-type inputs.