Ask the Brains; July/August 2009; Scientific American Mind; by Gordon H. Bower; Rosanna E. Guadagno; 2 Page(s)

Why is it that once you learn something incorrectly (say, 7 × 9 = 65), it seems you never can correct your recall?
—J. Kruger, Cherry Hill, N.J.

Cognitive psychologist Gordon H. Bower of Stanford University answers: