Experimental procedure. On day 1, participants underwent either a stressor or a nonstressful control manipulation before encoding photographs of 300 everyday objects. The color of these object was either presented together with the object (combined), in a frame around the object (spatial) or in a frame before object presentation (spatial-temporal), thus posing different demands of spatial-temporal integration on the participants. On day 2, 24 h later, participants returned for a self-paced recognition and color memory test. If participants indicated a presented object was “old,” they were subsequently asked for the color of the object and indicated the confidence of their color judgement. Green frames indicate responses of a fictive participant.
