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Selection of multiple cued items is possible during visual short-term memory maintenance.

Michi Matsukura1, Shaun P Vecera

  • 1Department of Psychology, University of Iowa, 11 Seashore Hall E, Iowa City, IA, 52242, USA, michi-matsukura@uiowa.edu.

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Attention can select multiple items in visual short-term/working memory (VSTM/VWM), even when items are not grouped together. This finding supports the sensory recruitment hypothesis for VSTM maintenance.

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Area of Science:

  • Cognitive Neuroscience
  • Psychology

Background:

  • Neuroimaging studies suggest visual short-term/working memory (VSTM/VWM) maintenance relies on sensory encoding mechanisms.
  • The sensory recruitment hypothesis posits VSTM retains sensory information, allowing attention to select multiple items within capacity limits.

Purpose of the Study:

  • To investigate whether attention can select multiple items during VSTM maintenance.
  • To determine if attentional selection in VSTM is influenced by item grouping (contiguous vs. noncontiguous).
  • To examine the role of observer goals and motivation in VSTM attentional selection.

Main Methods:

  • Participants were asked to recognize sets of items maintained in VSTM.
  • Experimental conditions manipulated item arrangement (grouped vs. ungrouped) and cueing.
  • Performance was measured based on accurate recognition of attended items.

Main Results:

  • Attention successfully selected multiple items during VSTM maintenance.
  • Attentional selection occurred regardless of whether items were perceptually grouped or not.
  • VSTM attentional selection was sensitive to observer goals and motivation.

Conclusions:

  • Attention can select multiple items in VSTM, supporting the sensory recruitment hypothesis.
  • Attentional selection in VSTM is flexible and not limited by perceptual grouping.
  • Observer's goals and motivation play a crucial role in directing attention within VSTM.