Affiliation:
1. Defence and Civil Institute of Environmental Medicine Toronto, Canada
Abstract
This study examined the relative effects of color, shape, and color+shape codes on time to recognize whether or not targets were updated in sequentially-presented diagrams. These relationships were examined with different retention-intervals (RIs) and tasks, with and without updates. Response-time was faster with color+shape or color than shape, across tasks and across RIs, whether or not targets were updated. However, the benefit of both color conditions was greater when targets were updated and subjects performed a distractor task during the RI; i.e., color showed a greater resistance to interference effects.