Although motion is processed by mt/mst, the ability to detect form from motion is processed in the right medial occipital lobe. Patient r. a. (vaina , 1998) could perceive motion (optic flow) but could not perceive form from motion. Patient l. m. (zihl et al. , 1991) could recognize form depicted solely by the moving points but she could not perceive motion. It is measured in hertz (hz) or cycles per second: the loudness corresponds to the amplitude or intensity of the molecular vibrations (more vigorous vibrations mean louder sound, the timbre corresponds to the complexity of the sound. Anatomy of the ear the middle ear comprises of three ossicles (small bones of the middle ear: the malleus, incus and stapes. Ear does not mix or combine sound waves the cochlea is part of the inner ear. It is a long coiled tube structure containing fluid. These vibrations are transferred to the middle ear.