Normal Development of Ocular Dominance Columns
Tracer injected into one eye, transneuronally transported across retinal axon synapse
   in thalamus (LGN), to cells projecting to visual cortex
   Postnatal Age
     2 weeks
     3 weeks
     5 weeks
     13 weeks

           column
     Visual cortex (frontal sections)
Kandel/Schwartz/Jessell
Principles of Neural Science
56.04