Rat

SNc (Substantia nigra, compact part) projects to PAG (Periaqueductal gray)

1 claim from 1 source: 1 found, 0 tested and absent, 0 ambiguous. Evidence: retrograde tracer. Strongest reported: weak.

The claims behind it

clm-t0t6wwfkz6presentretrograde tracerstrength: weakproposed

Very few CTb/TH double-labelled cells appeared in A9 (substantia nigra), and only in two cases whose injections spread into the intermediate-caudal dlPAG and the superior colliculus.

DOI 10.3389/fnana.2013.00041 · PubMed 24367297 · PMC3853869, Results, Other cell groups; Table 1

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.