feedback

After you hand in your essays, I will give both grades and feedback.

The fact that similar cortical abnormalities can be experimentally induced in monkeys has allowed Michael Merzenich and his colleagues in San Francisco to explore an animal model of focal dystonia, and to demonstrate the abnormal feedback in the sensory loop and the motor misfirings that, once started, grow relentlessly worse.

A loud feedback screech blasted from a speaker on the wall. It was a hailing signal of some kind.