Professor Kurt Koffka of the University of Giessen will conclude his series of lectures on the "Psychology of Learning" at Emerson D this afternoon at 4 o'clock. Yesterday before an audience of about ...
More than 70 years ago Gestalt psychologist Kurt Koffka described a fascinating effect1,2: When a contiguous grey ring is placed on a background half of one shade of grey (different from the ring) and ...