Developmental environment: variables important for later learning and changes in cholinergic activity.
D000110:Acetylcholinesterase / Q000378:metabolism*; D000818:Animals; D000830:Animals, Laboratory; D001522:Behavior, Animal; D002540:Cerebral Cortex / Q000201:enzymology*; D002802:Cholinesterases / Q000378:metabolism*; D004193:Discrimination Learning; D004777:Environment; D005106:Exploratory Behavior; D008297:Male; D051381:Rats; D014793:Visual Cortex / Q000201:enzymology; D014796:Visual Perception
D000110:Acetylcholinesterase; D002802:Cholinesterases