Answer:
The correct answer is "location columns".
Step-by-step explanation:
In a notorious experiment, David Hubel and Torsten Wiesel examined the properties of neurons by using microelectrode recordings. In their findings, these two scientists discovered that the striate cortex is organized into location columns and that all edge orientations were roughly equally represented in visual cortex. Sarah is doing a replication of this experiment, using electrodes perpendicular to the cat's cortex.