High-capacity spatial contextual memory |
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Authors: | Email author" target="_blank">Yuhong?JiangEmail author Joo-Hyun?Song Amanda?Rigas |
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Institution: | Department of Psychology, Harvard University, Cambridge, Massachusetts 02138, USA. yuhong@wjh.harvard.edu |
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Abstract: | Humans show implicit memory for complex spatial layouts, which aids in subsequent processing of these layouts. Research efforts
in the past 5 years have focused primarily on a single session of training involving a dozen repeated displays. Yet every
day, people encounter many more visual layouts than were presented in such experiments. In this study, we trained subjects
to learn 60 repeated displays, randomly intermixed within 1,800 nonrepeated displays, spread over 5 consecutive days. On each
day, the subjects conducted visual search on 360 new displays and a new set of 12 repeated displays, each repeated 30 times.
Contextual memory was observed daily. One week after the fifth session, the subjects still searched faster on the repeated
displays learned previously. We conclude that the visual system has a high capacity for learning and retaining repeated spatial
context, an ability that may compensate for our severe limitations in visual attention and working memory. |
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Keywords: | |
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