hypercolumn

hypercolumn

A complete set of orientation columns over a cycle of 180º and of right and left dominance columns in the visual cortex. A hypercolumn may be about 1 mm wide. A hypercolumn of orientation columns is perpendicular to a hypercolumn of ocular dominance columns (Fig. H5). See blobs; cortical column.
Fig. H5 A hypercolumn consisting of one set of orientation columns and one set of ocular dominance columns in the visual cortex. Electrode 1 penetrating at right angle to the surface encounters neurons responding to the same orientation and the same (right) ocular dominanceenlarge picture
Fig. H5 A hypercolumn consisting of one set of orientation columns and one set of ocular dominance columns in the visual cortex. Electrode 1 penetrating at right angle to the surface encounters neurons responding to the same orientation and the same (right) ocular dominance
References in periodicals archive ?
the hypercolumn in the visual cortex) and in terms of activity (e.
4) Within this hypercolumn arrangement, there are also columns that contain cytochrome oxidase called 'blobs' (see Figure 2).
This can be made through the activation of a population of neurons or represented in a hypercolumn in the visual cortex, but being one or the other it has a specific pattern that allows that object to be recognised as unique.