Reflex na Babinski, wanda kuma aka sani da reflex na plantar, amsa ce ta yatsu lokacin da tafin kafa ya motsa. A cikin amsa ta al'ada, yatsun kafa suna karkata zuwa ƙasa. Duk da haka, a cikin amsa maras kyau, babban yatsan yatsa sama da sauran yatsan yatsa yana nuna matsala tare da tsarin juyayi na tsakiya. Ana amfani da wannan reflex azaman kayan aikin bincike a cikin gwajin jijiya.
