Information technology of any sort is a valuable extension of our natural powers of perception and reasoning, but when we rely on it exclusively, it has a debilitating effect. (custom-paper-writing.com)
The immediacy of a direct response to the human subject on a moving train forces one to develop powers of perception and memory. (artzine.com)
(The new Paperwhite is a whopping two ounces lighter; my limited powers of perception don't allow me to notice any difference.) (pcworld.com)