Assertion: visual system's cell | /r/CapableOf | feed into accessory optic system
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Source sentences:
text: And I just wanted to remind you that the basic discovery was that in the retina, the cells of [INAUDIBLE] that feed into the accessory optic system come in three different direction selectivities as shown here and that these three direction selectivities correspond to the direction selectivity of semicircular canals.