Cross-Cultural Differences in Memory Specificity: Investigation of Candidate Mechanisms

Previous research has revealed that people from Western cultures tend to remember more details of objects and events in autobiographical memory compared to people from Eastern cultures. The present experiments tested whether differences in pattern separation—the process by which new, but potentially similar, exemplars are discriminated from previously encountered exemplars—account for these cultural difference in object memory. In two experiments, we investigated the extent to which North Americans and East Asians differ in pattern separation and whether these effects are related to cultural values. We also examined the role of response bias. These results revealed it is unlikely that pattern separation is the sole mechanism underlying cross-cultural memory specificity differences, as broader memory mechanisms, such as differences in memory resolution for previously encoded items, could account for the differences observed between groups.