The contributions of visual and central attention to visual working memory. Souza, A. S & Oberauer, K. Attention, perception & psychophysics, 79:1897–1916, 2017.
doi  abstract   bibtex   
We investigated the role of two kinds of attention-visual and central attention-for the maintenance of visual representations in working memory (WM). In Experiment 1 we directed attention to individual items in WM by presenting cues during the retention interval of a continuous delayed-estimation task, and instructing participants to think of the cued items. Attending to items improved recall commensurate with the frequency with which items were attended (0, 1, or 2 times). Experiments 1 and 3 further tested which kind of attention-visual or central-was involved in WM maintenance. We assessed the dual-task costs of two types of distractor tasks, one tapping sustained visual attention and one tapping central attention. Only the central attention task yielded substantial dual-task costs, implying that central attention substantially contributes to maintenance of visual information in WM. Experiment 2 confirmed that the visual-attention distractor task was demanding enough to disrupt performance in a task relying on visual attention. We combined the visual-attention and the central-attention distractor tasks with a multiple object tracking (MOT) task. Distracting visual attention, but not central attention, impaired MOT performance. Jointly, the three experiments provide a double dissociation between visual and central attention, and between visual WM and visual object tracking: Whereas tracking multiple targets across the visual filed depends on visual attention, visual WM depends mostly on central attention.
@Article{Souza2017,
  author          = {Souza, Alessandra S and Oberauer, Klaus},
  journal         = {Attention, perception \& psychophysics},
  title           = {The contributions of visual and central attention to visual working memory.},
  year            = {2017},
  issn            = {1943-393X},
  pages           = {1897--1916},
  volume          = {79},
  abstract        = {We investigated the role of two kinds of attention-visual and central attention-for the maintenance of visual representations in working memory (WM). In Experiment 1 we directed attention to individual items in WM by presenting cues during the retention interval of a continuous delayed-estimation task, and instructing participants to think of the cued items. Attending to items improved recall commensurate with the frequency with which items were attended (0, 1, or 2 times). Experiments 1 and 3 further tested which kind of attention-visual or central-was involved in WM maintenance. We assessed the dual-task costs of two types of distractor tasks, one tapping sustained visual attention and one tapping central attention. Only the central attention task yielded substantial dual-task costs, implying that central attention substantially contributes to maintenance of visual information in WM. Experiment 2 confirmed that the visual-attention distractor task was demanding enough to disrupt performance in a task relying on visual attention. We combined the visual-attention and the central-attention distractor tasks with a multiple object tracking (MOT) task. Distracting visual attention, but not central attention, impaired MOT performance. Jointly, the three experiments provide a double dissociation between visual and central attention, and between visual WM and visual object tracking: Whereas tracking multiple targets across the visual filed depends on visual attention, visual WM depends mostly on central attention.},
  citation-subset = {IM},
  completed       = {2018-05-24},
  country         = {United States},
  doi             = {10.3758/s13414-017-1357-y},
  issn-linking    = {1943-3921},
  issue           = {7},
  keywords        = {Attention; Cues; Female; Humans; Male; Memory, Short-Term; Mental Recall; Photic Stimulation; Psychomotor Performance; Visual Perception; Young Adult; Attention; Dual-task costs; Multiple object tracking; Refreshing; Working memory},
  nlm-id          = {101495384},
  pmid            = {28600676},
  pubmodel        = {Print},
  revised         = {2018-12-02},
}

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