Higher order (secondary and tertiary) sensory cortices: they
surround the primary sensory areas and integrate information coming
from the psa's. In contrast, higher order motor areas send complex
information required for a motor act to the primary motor cortex.
Example of higher order sensory processing in vision is the detection
of direction, intensity, contrast, speed, and other such combined
attributes of stimuli. Here structural/ functional units like columns
and modules have been found.