Especially, the synaptic connectivities of neurons are so mysterious and puzzling.
One typical example is the synapse from VSI-B to VSI-follower cell (VSIF).
VSI-B excites VSIF from both sides, ipsilaterally and contralaterally though PdN6, but it is totally unknown where they connect. Is it direct synapse, or indirect, or mediated another electrically-coupled cell?
(from 4/29 lab meeting)
Today, I found another mystery in the synaptic output of DSI.
DSI was thought to project its axon to the contralateral PdG.
What I found was...
