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  • 标题:Task conditions and short-term memory search: two-phase model of STM search
  • 作者:Jarosław Orzechowski ; Edward Nęcka ; Robert Balas
  • 期刊名称:Polish Psychological Bulletin
  • 印刷版ISSN:0079-2993
  • 电子版ISSN:0079-2993
  • 出版年度:2016
  • 卷号:47
  • 期号:1
  • 页码:12-20
  • DOI:10.1515/ppb-2016-0002
  • 语种:English
  • 出版社:Walter de Gruyter GmbH
  • 摘要:Short-term memory (STM) search, as investigated within the Sternberg paradigm, is usually described as exhaustive rather than self-terminated, although the debate concerning these issues is still hot. We report three experiments employing a modified Sternberg paradigm and show that whether STM search is exhaustive or self-terminated depends on task conditions. Specifically, STM search self-terminates as soon as a positive match is found, whereas exhaustive search occurs when the STM content does not contain a searched item. Additionally, we show that task conditions influence whether familiarity- or recollection-based strategies dominate STM search performance. Namely, when speeding up the tempo of stimuli presentation increases the task demands, people use familiarity-based retrieval more often, which results in faster but less accurate recognition judgments. We conclude that STM search processes flexibly adapt to current task conditions and finally propose two-phase model of STM search.
  • 关键词:short-term memory ; STM retrieval ; STM search ; Sternberg paradigm ; familiarity ; recollection
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