granny cell
n.— «In vision, the search for a “granny cell”—a cell that fired only when you saw granny (or some other such complex object)—proved fruitless, so we are probably not going to detect a “Bach cell” or a “Stravinsky cell” in the auditory cortex.» —“Stripes of the auditory cortex register tones somewhat like keys on a piano Brain ‘hears’ stereo sound” by Robert Walgate, Wallace Immen Globe and Mail (Toronto, Can.) Apr. 1, 1983. (source: Double-Tongued Dictionary)