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MH (Medial habenula) synapses onto DG (Dentate gyrus)

Species: Rat
Result: absent
Method: transsynaptic tracer
Sign: unknown
Evidence: Medial habenula neurons were labeled only after five days of survival and not at three days, indicating they are second-order rather than direct DG inputs.
Source: Organization of Multisynaptic Inputs to the Dorsal and Ventral Dentate Gyrus: Retrograde Trans-Synaptic Tracing with Rabies Virus Vector in the Rat
PLoS ONE, 2013
DOI 10.1371/journal.pone.0078928 · PubMed 24223172 · PMC3819259, Results, Single-virus injection; Fig. 2-5
Licence: CC-BY-4.0
Named in the paper: “medial habenular nucleus” and “dorsal and ventral DG”
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
“The medial habenular nucleus was labeled only at five days and is interpreted as a disynaptic input.”
Status: proposed
Drafted and checked by AI models; it stays proposed until people have audited a sample of such claims.