When tracking the positioning in space of the arm and hand, the device can detect subtle movements all directions. (goodereader.com)
The players can control both the ship movement direction and speed using the motion controllers. (vrgamesfor.com)
The ganglion cells are third or fourth in a chain of neurons triggered when light strikes the retina; the study suggested that neurons somewhere in this path calculate movement direction from the timed interplay of excitatory and inhibitory neural impulses. (sciencemag.org)