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The parietal lobe plays important roles in integrating sensory information from various parts of the body, knowledge of numbers and their relations, and in the manipulation of objects.
Portions of the parietal lobe are involved with visuospatial processing.
Although multisensory in nature, the posterior parietal cortex is often referred to by vision scientists as the dorsal stream of vision ( as opposed to the ventral stream in the temporal lobe ).
This dorsal stream has been called both the ' where ' stream ( as in spatial vision ) and the ' how ' stream ( as in vision for action ).
The posterior parietal cortex ( PPC ) receives somatosensory and / or visual input, which then, through motor signals, controls movement of the arm, hand, as well as eye movements.

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