Increase the basic cable activity of pallium cell, the inhibition that improves hemishere condition, restore to have stimulative effect to brain function.
Researchers shined different angles of light into extremely thin slices of the pallium, the area of bird brains with a similar function to the neocortex of mammals.
The fibers of owls and pigeons were organized much like those of mammals: parallel fibers along the pallium were crosscut by perpendicular fibers between layers, forming columns of connection.