Figure 16.

Relationship between tuning strength, as measured by DDI, and cell location within the intraparietal sulcus. DDI values for the vestibular condition (top row) and the visual condition (bottom row) are plotted as a function of the anterior–posterior stereotaxic coordinate of each electrode penetration (shown in millimeters, with 0 mm corresponding to AP-0). A, Data recorded from the left hemisphere (LH) of monkey J (left column, n = 53) and the right hemisphere (RH) of monkey J (right column, n = 70). B, Data obtained from the right hemisphere of monkey C (n = 112). Black symbols, Multisensory neurons; red symbols, vestibular-only neurons; green symbols, visual-only neurons. The solid lines illustrate the best-fit lines from linear regressions. Note that only responsive cells are included in these scatter plots. “+” marks the mean location for each group of cells.