Table 2.

Postsynaptic targets of local collaterals of forward-projecting cells and feedback projections

Layer2-aForward axonsFeedback axons
Spine2-bShaftSpineShaft
143 (95.6)2 (4.4)29 (93.5)2 (6.5)
2/316 (88.9)2 (11.1)5 (100)0 (0)
Total59 (93.7)4 (6.3)34 (94.4)2 (5.5)

  • ↵F2-a  Cortical layer in which synaptic connections were examined.

  • ↵F2-b  Spine and shaft inputs, respectively, are expressed within parentheses as percent of total identified inputs within indicated layer.