Memory for common objects: brief intentional study is sufficient to overcome poor recall of US coin features

摘要

Prior studies have explained the very poor recall for the features of a coin in terms of visual characteristics. Two experiments compared incidental exposure and intentional study of US coins on recall of their features. In Experiment 1, recall performance for a rarely seen Mercury dime after a 1-min study period was better than that for an unstudied penny, even when the test on the dime was delayed 1 week. In Experiment 2, participants studied the dime for 15, 30, 45, or 60 s. Recall of the dime was greater than that of the unstudied penny even with the shortest study interval. Thus, a high level of recall of a coin's features can be obtained with brief intentional study, and that level can be maintained across a long delay interval. These findings suggest that poor retention of coin features is due to incidental exposure rather than to visual characteristics.