Concurrent Working Memory Load Can Facilitate Selective Attention: Evidence for Specialized Load

Load theory predicts that concurrent working memory load impairs selective attention and increases distractor interference ( N. Lavie, A. Hirst, J. W. de Fockert, & E. Viding, 2004 ). Here, the authors present new evidence that the type of concurrent working memory load determines whether load i...

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Bibliographic Details
Published in:Journal of experimental psychology. Human perception and performance 2007-10, Vol.33 (5), p.1062-1075
Main Authors: Park, Soojin, Kim, Min-Shik, Chun, Marvin M
Format: Article
Language:English
Subjects:
Activity levels. Psychomotricity
Attention
Biological and medical sciences
Cognitive Ability
Effects
Experimental psychology
Fundamental and applied biological sciences. Psychology
Human
Human Channel Capacity
Humans
Interference (Learning)
Learning. Memory
Memory
Memory, Short-Term
Predictor Variables
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reaction Time
Selective Attention
Short Term Memory
Task Complexity
Vigilance. Attention. Sleep
Visual Perception
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Summary:Load theory predicts that concurrent working memory load impairs selective attention and increases distractor interference ( N. Lavie, A. Hirst, J. W. de Fockert, & E. Viding, 2004 ). Here, the authors present new evidence that the type of concurrent working memory load determines whether load impairs selective attention or not. Working memory load was paired with a same/different matching task that required focusing on targets while ignoring distractors. When working memory items shared the same limited-capacity processing mechanisms with targets in the matching task, distractor interference increased. However, when working memory items shared processing with distractors in the matching task, distractor interference decreased, facilitating target selection. A specialized load account is proposed to describe the dissociable effects of working memory load on selective processing depending on whether the load overlaps with targets or with distractors.
ISSN:0096-1523
1939-1277
DOI:10.1037/0096-1523.33.5.1062