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PL (Prelimbic area) projects to BLA (basal amygdaloid nucleus)

All claims for this connection
Species
Rat
Result
present
Method
retrograde tracer
Sign
unknown
Evidence
Retrograde CaMKIIa-mCherry virus injected in the BLA labelled neurons in the prelimbic cortex, indicating a PL-to-BLA excitatory projection; these labelled PL cells showed increased c-Fos after conditioned-stimulus retrieval of remote fear memory.
Source

A ventral hippocampus-basolateral amygdala circuit regulates the unconditioned stimulus retrieval-induced reconsolidation of remote fear memory

Journal of Advanced Research, 2026

DOI 10.1016/j.jare.2025.10.015 · PubMed 41086982 · PMC13316356, Fig. 4b, 4c

Licence: CC-BY-NC-ND-4.0

Named in the paper
“PL” and “BLA”
Made by
an AI model reading the paper (claude-opus-5, extract@0.3.0), 2026-10-09
Checked by

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

“The same BLA retrograde injection labelled PL neurons, which were c-Fos activated after CS retrieval (Fig. 4c).”

Status

proposed

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