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CEA (Central amygdalar nucleus) synapses onto SI (Substantia innominata)

All claims for this connection
Species
Mouse
Result
present
Method
transsynaptic tracer
Sign
unknown
Evidence
Cholinergic neurons of the nucleus basalis complex (NBM plus dorsal SI) received their main olfactory-system input from the central amygdala, about 13% of whole-brain rabies-labelled neurons and roughly 71% of the olfactory input.
Measurements
  • fraction of labelled neurons: 0.131 (SEM 0.0384), 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
“CEA (central amygdala nucleus)” and “NBMc (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

“CEA gave 13.10 ± 3.84% of total inputs and 71% of olfactory inputs to NBMc (n = 3).”

Status

proposed

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