Organization of space perception: neural representation of three-dimensional space in the posterior parietal cortex.
Sakata H., Kusunoki M.
The representation of perceptual space in the posterior parietal cortex can be divided into at least two categories: far space, beyond arm's reach, and peripersonal space, within arm's reach. These are encoded by different groups of neurons that are closely related to the control of gaze and the guidance of arm and hand movement, respectively.