3 DIFFERENT INCENTIVE CONDITIONS, 5CENT OR 1CENT FOR A CORRECT RESPONSE, OR A SHOCK FOR AN INCORRECT RESPONSE WERE CUED BY VARYING THE COLOR BACKGROUND OF THE TRIGRAM SLIDE (TRACE FORMATION), NUMBER SLIDE (TRACE STORAGE), OR RECALL SLIDE (TRACE UTILIZATION) OF THE SHORT-TERM MEMORY SEQUENCE. 48 COLLEGE SS IN EACH OF THE TRACE CUE POSITION GROUPS RECEIVED ALL INCENTIVE CUES. THE INTERPOLATED ACTIVITY, COUNTING BACKWARD BY 3S, WAS MEASURED. THE MOTIVATIONAL MANIPULATION WAS SIGNIFICANT ONLY IN THE TRACE FORMATION CONDITION. A CONCOMITANT DIFFERENCE IN THE COUNTING TASK SUPPORTED THE CONCLUSION THAT DIFFERENTIAL REHEARSAL ACCOUNTS FOR THE MOTIVATIONAL RESULT. (PsycINFO Database Record (c) 2006 APA, all rights reserved)