Assertion: brainstem's function | /r/CapableOf | track moving objects
Facets:
value: visually
type: MANNER
Source sentences:
text: The upper pair, called the superior colliculi, functions in visual attention; visually tracking moving objects; such reflexes as blinking, focusing, pupillary dilation and constriction; and turning the eyes and head in response to a visual stimulus (for example, to look at something that you catch sight of in your peripheral vision).