At "2 months old", cary will not search for a toy that disappears, but when he is "12 months old", he will look for a toy that has been completely hidden.
Object permanence refers to the understanding that articles keep on existing notwithstanding when they can't be seen. This is a central idea considered in the field of developmental psychology, the subfield of psychology that tends to the advancement of youthful youngsters' social and mental limits.
