Fig. 6.

Object component variables represented in each parietal region for the handle (top row) and head (bottom row) of a hammer. The areas V6A and MIP represent the shoulder-centered direction of the center of the primitive, ${\mathit{\phi }}_{\mathrm{s}}$ and ${\mathit{\theta }}_{\mathrm{s}}$, and the shoulder-centered distance, ${\mathit{\rho }}_{\mathrm{s}}$, and cIPS represents the object component’s orientation, $o_x$, $o_y$, $o_z$, size, $s_x$, $s_y$, $s_z$, and orientation of surface normal vectors ($n_1,n_2$, and $n_3$ in this case)