Correspondence problems cause repositioning costs in visual working memory

Autor:	Florent Levillain, Jonathan Flombaum
Rok vydání:	2012
Předmět:	Hardware_MEMORYSTRUCTURES Orientation (computer vision) Working memory Cognitive Neuroscience Line length Experimental and Cognitive Psychology Task (project management) Arts and Humanities (miscellaneous) Explicit memory Psychology Correspondence problem Categorical variable Social psychology Change detection Cognitive psychology
Zdroj:	Visual Cognition. 20:669-695
ISSN:	1464-0716 1350-6285
DOI:	10.1080/13506285.2012.683050
Popis:	Visual working memory performance often declines when objects are tested in new positions from those they were observed. We report an asymmetry in repositioning costs for orientation compared to colour memory (Experiment 1). Follow-up experiments demonstrated a similar asymmetry for line length memory compared to shape memory (Experiment 2). When different shades of the same colour category were used, however, repositioning costs emerged for colour as well (Experiment 3). Finally, a direct comparison experiment demonstrated an asymmetry for orientation compared to categorical colours, but in a task with no explicit memory demands (Experiment 4). These results challenge previous accounts of repositioning costs, suggesting that they emerge not due to the contents of visual working memory, but naturally because of correspondence procedures that must be executed in order to use a memory to judge the present.
Databáze:	OpenAIRE
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