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MOp (Primary motor area) synapses onto CP (Caudoputamen)

All claims for this connection
Species
Mouse
Result
present
Method
transsynaptic tracer
Sign
unknown
Evidence
Primary motor cortex provided a significantly larger share of inputs to pDMS D2-MSNs than to D1-MSNs.
Measurements
  • fraction of labelled neurons: 0.084, n = 8
Source

Whole-Brain Mapping of Direct Inputs to Dopamine D1 and D2 Receptor-Expressing Medium Spiny Neurons in the Posterior Dorsomedial Striatum

eneuro, 2020

DOI 10.1523/eneuro.0348-20.2020 · PubMed 33380525 · PMC7877463, Fig. 1D, 2
Named in the paper
“primary motor cortex (M1)” and “D2-MSNs in the posterior dorsomedial striatum (pDMS)”
Made by
an AI model reading the paper (claude-opus-5-5, extract@0.3.0), 2026-10-10
Checked by

a second AI model (claude-opus-5-5) agrees, 2026-10-10

“M1 supplies 8.40% of D2-MSN inputs and is biased toward D2-MSNs (p<0.05), with n=8.”

Status

proposed

Drafted and checked by AI models; it stays proposed until people have audited a sample of such claims.