MB (Midbrain) synapses onto LP (Lateral posterior nucleus of the thalamus)

With helper AAV (TVA and rabies glycoprotein) in LP and EnvA-pseudotyped ΔG rabies in BLA, starter BLA-projecting LP neurons transsynaptically labelled presynaptic SC neurons. Labelled SC cell numbers were lower in VPA mice than in saline controls.

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) disagrees. “The subject is mapped to the whole midbrain (MBA:313), but the paper specifically means the superior colliculus, which has its own term.”