Italian to English Medical Medical (general) neurology/stroke evaluation

This is at the beginning of a discharge report on a patient who was hospitalized for stroke. The anamnesi starts out:

"Giunge alla nostra osservazione per disequilibrio, dysmetria alle prove I-N e C-G a dx, ed ipostenia emisoma dx."

I can't figure out what this C-G test is (I-N has already been asked/answered here btw). Apparently they're done together in a neurology context: I found another example online: "EON: non deficit stenici, ROT scattanti in modo simmetrico, inesauribili i rotulei; Babinski dubbio a dx, prova IN normale, prova CG un po’ imprecisa a dx, adiadococinesia, nncc nella norma."

What does C-G (or CG) stand for in Italian in this context, and how do we say it in English?