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HIP (Hippocampal region) synapses onto MSC (Medial septal complex)

All claims for this connection
Species
Mouse
Result
present
Method
transsynaptic tracer
Sign
unknown
Evidence
Monosynaptic rabies tracing from cholinergic neurons of the medial septum/diagonal band complex showed the hippocampus as the dominant olfactory-system input, about 5.4% of whole-brain inputs and roughly 57% of the olfactory input.
Measurements
  • fraction of labelled neurons: 0.0544 (SEM 0.016), n = 3
Source

Different Subgroups of Cholinergic Neurons in the Basal Forebrain Are Distinctly Innervated by the Olfactory Regions and Activated Differentially in Olfactory Memory Retrieval

Frontiers in Neural Circuits, 2018

DOI 10.3389/fncir.2018.00099 · PubMed 30483067 · PMC6243045, Figures 2B,C

Licence: CC-BY-4.0

Named in the paper
“HIP” and “MS/DBc (cholinergic neurons)”
Made by
an AI model reading the paper (claude-opus-5, extract@0.3.0), 2026-10-10
Checked by

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

“HIP gave 5.44 ± 1.60% of total inputs to MS/DBc cholinergic cells (n = 3), its largest olfactory input.”

Status

proposed

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