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SSp (Primary somatosensory area) projects to MOp (Primary motor area)

All claims for this connection
Species
Rat
Result
present
Method
anterograde tracer
Sign
unknown
Strength
strong
Evidence
Genital cortex BDA injections in both sexes gave a strong elongated labeled spot medial to S1, interpreted as the genital part of primary motor cortex. Weak label also appeared in contralateral M1-clitoris in females.
Source

Physiological and Anatomical Outputs of Rat Genital Cortex

Cerebral Cortex, 2018

DOI 10.1093/cercor/bhx359 · PubMed 29373631 · PMC6093453, Fig. 3B, Fig. 4A,C,D, Fig. 5E, Table 1

Licence: CC-BY-NC-4.0

Named in the paper
“somatosensory penis/clitoris cortex” and “M1-Genital (putative genital primary motor cortex)”
Made by
an AI model reading the paper (claude-opus-5-5, extract@0.3.0), 2026-10-09
Checked by

a second AI model (claude-opus-5-5) agrees, 2026-10-09

“Strong M1-Genital label appears after penis and clitoris injections, with weak contralateral M1-clitoris label in females.”

Status

proposed

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