Detection of the Number of Changes in a Display in Working Memory.

Here we examine a new task to assess working memory for visual arrays in which the participant must judge how many items changed from a studied array to a test array. As a clue to processing, on some trials in the first 2 experiments, participants carried out a metamemory judgment in which they were...

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Publicado en:Journal of Experimental Psychology. Learning, Memory & Cognition Vol. 42; no. 2; pp. 169 - 186
Autores principales: Cowan, Nelson, Hardman, Kyle, Saults, J. Scott, Blume, Christopher L., Clark, Katherine M., Sunday, Mackenzie A.
Formato: Artículo
Publicado: American Psychological Association Feb2016
Materias:
Acceso en línea:Ver este registro en EBSCOhost
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        atl: Detection of the Number of Changes in a Display in Working Memory.
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          Cowan, Nelson
          Hardman, Kyle
          Saults, J. Scott
          Blume, Christopher L.
          Clark, Katherine M.
          Sunday, Mackenzie A.
        affil:
          University of Missouri
          Vanderbilt University
      su:
        Clinical trials
        Number theory
        Short-term memory
        Mathematical models
        Metacognition
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          Clinical trials
          Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
          Number theory
          Short-term memory
          Mathematical models
          Metacognition
      keyword:
        change detection
        mathematical model
        metamemory
        multiple change detection
        working memory capacity
        change detection
        mathematical model
        metamemory
        multiple change detection
        working memory capacity
      ab: Here we examine a new task to assess working memory for visual arrays in which the participant must judge how many items changed from a studied array to a test array. As a clue to processing, on some trials in the first 2 experiments, participants carried out a metamemory judgment in which they were to decide how many items were in working memory. Trial-to-trial fluctuations in these working memory storage judgments correlated with performance fluctuations within an individual, indicating a need to include trial-to-trial variation within capacity models (through either capacity fluctuation or some other attention parameter). Mathematical modeling of the results achieved a good fit to a complex pattern of results, suggesting that working memory capacity limits can apply even to judgments that involve an entire array rather than just a single item that may have changed, thus providing the expected conscious access to at least some of the contents of working memory.
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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