<prompt> Superior colliculus is concerned cellsOlfactionHearingVisionPain sensation  <response>: The superior colliculus SC is a midbrain area where visual, auditory and somatosensory information are integrated to initiate motor commands. The SC plays a central role in visual information processing in the mouse; it receives projections from 85 to 90 of the retinal ganglion cells RGCs. Ref Harrison20th edition pg 2345 