Conscious and unconscious influences of memory for object location

The process-dissociation procedure was used to investigate conscious and un conscious influences of memory for object location. In two experiments, sub jects worked with drawings of household objects and rooms of a house depict ed on a computer monitor to simulate placing objects in various locations. Memory for object locations was tested by having subjects search for those objects. A double dissociation was obtained between estimates of conscious and unconscious influences of memory computed from equations that assumed i ndependence between these two influences: Age-related differences were foun d in the estimate of conscious influences, but not in the estimate of uncon scious influences, whereas manipulation of habit strength affected the unco nscious estimate, but not the conscious estimate. These results were closel y fit by a multinomial model assuming independence between conscious and un conscious influences of memory.