KRECH, D Effects of complex environment and blindness on ratbrain. An experiment in replicate. [electronic resource] - Archives of neurology Apr 1963 - 402-12 p. digital Publication Type: Journal Article ISSN: 0003-9942 Standard No.: 10.1001/archneur.1963.00460040073007 doi Subjects--Topical Terms: BlindnessCerebral CortexCholinesterasesHumans