Final answer:
The parietal association cortices are connected to the SI cortex and work together to process sensory and motor information in complex ways.
Step-by-step explanation:
The parietal association cortices have a relationship with the primary somatosensory cortex (SI cortex). The parietal cortex lies between the somatosensory cortex and visual cortex regions and is involved in coordinating visual and motor functions, such as reaching for an object. The somatosensory function in this case is the proprioceptive feedback from moving the arm and hand. The parietal association cortex integrates multisensory information and processes sensory and motor information in more complex ways.