Topic: eye preference

The primary visual cortex (V1) of higher mammals such as cats and monkeys shows columns for stimulus features like orientation preference and ocular dominance, but such columns are not found in all groups of mammals. Models suggest that the afferent sampling density in V1 could be a key factor determining whether a columnar organization is established or not. Accordingly, in rodent V1, which – in comparison to other animals – has a low sampling density, there appear to be no orientation columns. However, the situation is less clear for ocular dominance. So far, in vivo imaging studies in mice