scholarly journals Dual-task interference in visual working memory: A limitation in storage capacity but not in encoding or retrieval

2009 ◽  
Vol 71 (8) ◽  
pp. 1831-1841 ◽  
Author(s):  
D. Fougnie ◽  
R. Marois
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Dual Task ◽  
Storage Capacity ◽  
Task Interference ◽  
Dual Task Interference

The Effects of Task Complexity and Practice on Dual-Task Interference in Visuospatial Working Memory

2005 ◽  
Vol 6 (1) ◽  
pp. 13-20 ◽  
Author(s):  
Stephen J. Murray ◽  
Ken McFarland ◽  
Gina Geffen
Keyword(s):  
Working Memory ◽  
Dual Task ◽  
Task Complexity ◽  
Practice Effects ◽  
Task Interference ◽  
Recent Letter ◽  
Behavioural Performance ◽  
Linear Slope ◽  
Dual Task Interference ◽  
Back Task

AbstractAlthough the n-back task has been widely applied to neuroimagery investigations of working memory (WM), the role of practice effects on behavioural performance of this task has not yet been investigated. The current study aimed to investigate the effects of task complexity and familiarity on the n-back task. Seventy-seven participants (39 male, 38 female) completed a visuospatial n-back task four times, twice in two testing sessions separated by a week. Participants were required to remember either the first, second or third (n-back) most recent letter positions in a continuous sequence and to indicate whether the current item matched or did not match the remembered position. A control task, with no working memory requirements required participants to match to a predetermined stimulus position. In both testing sessions, reaction time (RT) and error rate increased with increasing WM load. An exponential slope for RTs in the first session indicated dual-task interference at the 3-back level. However, a linear slope in the second session indicated a reduction of dual-task interference. Attenuation of interference in the second session suggested a reduction in executive demands of the task with practice. This suggested that practice effects occur within the n-back task and need to be controlled for in future neuroimagery research using the task.

Effect of Auditory or Visual Working Memory Training on Dual-Task Interference

Motor Control ◽  
2020 ◽  
Vol 24 (2) ◽  
pp. 304-317
Author(s):  
Takehide Kimura ◽  
Ryouta Matsuura
Keyword(s):  
Working Memory ◽  
Dual Task ◽  
Multilevel Model ◽  
Visual Stimuli ◽  
Auditory Stimuli ◽  
Memory Training ◽  
Task Interference ◽  
Before And After ◽  
Dual Task Interference ◽  
Back Task

Dual-task interference causes many accidents. Working memory (WM) training has the potential to reduce dual-task interference. However, an effective method of WM training for reducing dual-task interference has not been established. This study aimed to examine whether WM training using auditory stimuli (auditory WM training) or visual stimuli (visual WM training) would more effectively reduce dual-task interference. Twenty-two young adults performed an N-back task with auditory or visual stimuli for auditory or visual WM training, for 2 weeks. The authors assessed dual-task interference before and after each training. The authors used a hierarchic multilevel model for these assessment parameters. As a result, visual WM training might be more effective for reducing dual-task interference than auditory WM training.

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