The development of explicit memory for basic perceptual features |
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Authors: | Gulya Michelle Rossi-George Alba Hartshorn Kristin Vieira Aurora Rovee-Collier Carolyn Johnson Marcia K Chalfonte Barbara L |
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Institution: | Department of Psychology, Rutgers University, Piscataway, NJ 08854-8020, USA. |
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Abstract: | In three experiments with 164 individuals between 4 and 80 years old, we examined age-related changes in explicit memory for three perceptual features--item identity, color, and location. In Experiments 1-2, feature recognition was assessed in an incidental learning, gamelike task resembling the game Concentration. In Experiment 3, feature recognition was assessed using a pencil-and-paper task after intentional learning instructions. The form of the explicit memory function across the life span varied with the particular perceptual feature tested and the type of task. Item recognition was excellent at all ages but was significantly poorer for older adults than children, color recognition peaked in late childhood on the gamelike task, and location recognition peaked in early adulthood on the pencil-and-paper task. These findings indicate that performance on explicit memory tests is not a consistent inverted U-shaped function of age across various features. Explicit memory performance depends on what is measured and how. Because explicit memory typically reflects a composite of different features, age-related changes in explicit memory will not necessarily correspond to the function for any single one. |
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Keywords: | explicit memory memory development life span feature recognition item recognition color recognition location memory Concentration |
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