Individual differences exist in the ability to create an accurate mental survey representation (i.e., a cognitive map) of a novel environment, yet the mechanisms underlying differences in cognitive map accuracy are still under investigation. To determine whether differences in overt attention allocation contribute to these individual differences, the current study examined whether looking times to landmarks and other objects while navigating in a dynamic virtual environment were related to cognitive map accuracy. Participants completed a battery of spatial tests; some tests assessed spatial skills prior to the navigation task (the Santa Barbara Sense of Direction Scale and the Spatial Orientation Test), and others tested memory of the virtual environment Silcton after an exploration period (a landmark recognition task, a direction estimation task, a map-building task, and a route construction task). Individuals with inaccurate cognitive maps of Silcton, as measured by the direction estimation and map-building tasks, showed equivalent eye fixations to buildings and objects when exploring Silcton as those with accurate maps. Despite similar looking times, the inaccurate mappers were significantly worse at judgments of relative direction between landmarks in Silcton and showed poorer memory for landmarks in Silcton than accurate mappers. These findings suggest that cognitive mechanisms, such as mental perspective-taking, occurring after attention allocation underlie differences in cognitive map accuracy. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
In the missing item task, two short lists are presented. The test list contains all but one of the items from the study list in a new random order and the task is to report which item from the study list is missing. Murdock and Smith (2005) found that the time to correctly respond with the missing item was independent of the position of the missing item and was also independent of the list length. They argued that these data are difficult to accommodate by models that include a search process but are consistent with models that posit "direct access" such as the power set version of Theory of Distributed Associative Memory (TODAM). If direct access is occurring, redintegration cannot be occurring. Two experiments test the direct access account by determining whether two effects commonly ascribed to redintegration occur in the missing item task. Experiment 1 found a semantic relatedness effect and Experiment 2 found a word frequency effect. The presence of these effects is consistent with a redintegration account. Implications for TODAM and for an explanation based on the Feature Model are discussed. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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