Page:Mind (New Series) Volume 9.djvu/332

 318 S. BRYANT : THE DOUBLE EFFECT OF MENTAL STIMULI. first reaction by its power of stimulating secondary reactions of reinforcement later. This with its greater ability to store impressions that may, as stored, become the centres of activity postponed till a convenient season, constitute a kind of talent not less useful than that of the more practical, swiftly- thinking, lightly conscious man.