KEY RESOURCES TABLE

REAGENT or RESOURCE	SOURCE	IDENTIFIER
Antibodies
Anti-ChAT antibody	MilliporeSigma	MAB5270
Goat Anti-Mouse-Biotin-SP antibody	Jackson ImmunoResearch Laboratories	115–067-003
Chemicals, peptides, and recombinant proteins
Streptavidin-HRP	PerkinElmer	NEL750
SuperGlo Green fluorescein tyramide	Fluorescent Solutions	FS101
Deposited data
Figure data	This paper	https://dx.doi.org/10.17632/f9p96z597v.2
Experimental models: Organisms/strains
Rhesus macaques (Macaca mulatta)	Alpha Genesis	N/A
Software and algorithms
MATLAB	MathWorks	R2012–2019a
Other
Microelectrodes	FHC	UEWLGGSE4N1E