scholarly journals The guidance effect of working memory load on visual search

2010 ◽  
Vol 3 (9) ◽  
pp. 629-629 ◽  
Author(s):  
S.-H. Oh ◽  
M.-S. Kim
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Memory Load ◽  
Working Memory Load

Visual Search Facilitation in Repeated Displays Depends on Visuospatial Working Memory

2012 ◽  
Vol 59 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Angela A. Manginelli ◽  
Franziska Geringswald ◽  
Stefan Pollmann
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Control Experiment ◽  
Memory Load ◽  
Contextual Cueing ◽  
Long Term Memory ◽  
Visuospatial Working Memory ◽  
Working Memory Load ◽  
Memory Resources

When distractor configurations are repeated over time, visual search becomes more efficient, even if participants are unaware of the repetition. This contextual cueing is a form of incidental, implicit learning. One might therefore expect that contextual cueing does not (or only minimally) rely on working memory resources. This, however, is debated in the literature. We investigated contextual cueing under either a visuospatial or a nonspatial (color) visual working memory load. We found that contextual cueing was disrupted by the concurrent visuospatial, but not by the color working memory load. A control experiment ruled out that unspecific attentional factors of the dual-task situation disrupted contextual cueing. Visuospatial working memory may be needed to match current display items with long-term memory traces of previously learned displays.

scholarly journals Effect of verbal working memory load during the oculomotor activity in visual search

2015 ◽  
Vol 8 (2) ◽  
pp. 21-35 ◽  
Author(s):  
B.B. Velichkovsky ◽  
A.I. Izmalkova
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Spatial Working Memory ◽  
Memory Load ◽  
Mutual Influence ◽  
Verbal Working Memory ◽  
Working Memory Load ◽  
Visual Spatial ◽  
Visual Spatial Working Memory ◽  
Oculomotor Activity

The structure of working memory has components responsible for the storage of verbal and visualspatial information; despite the fairly detailed study of the functions and mechanisms of their work, the question of their mutual influence is still open. Studies on the verbal working memory load influence on visual search performance (a task requiring the use of visual-spatial working memory resources) it was found that the load on the verbal working memory leads to increased efficiency of target detection. The results of the analysis of oculomotor activity during visual search also point out that the implementation of such tasks under verbal working memory load is accompanied by an increase in cognitive tension and of the degree of search automaticity. The results may indicate the interaction of verbal and visual-spatial working memory components that share non-specific cognitive resources.

scholarly journals Attentional Effects of Working Memory Load and Consolidation During Visual Search

2012 ◽  
Vol 12 (9) ◽  
pp. 1145-1145 ◽  
Author(s):  
M. Chirimuuta ◽  
K. Tsvetanov ◽  
G. Humphreys
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Memory Load ◽  
Working Memory Load

scholarly journals Spatial working memory in visual search for multiple targets

2017 ◽  
Vol 10 (1) ◽  
pp. 38-52 ◽  
Author(s):  
E.S. Gorbunova
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Alternative Explanation ◽  
Spatial Working Memory ◽  
Memory Load ◽  
Search Efficiency ◽  
Working Memory Load ◽  
Multiple Targets ◽  
Subsequent Search Misses

The article investigated the role of spatial working memory in visual search for multiple targets, in particular, in subsequent search misses effect. This phenomenon is the second target omission after the first target has been found in visual search task. One of the theoretical interpretations of subsequent search misses is the lack of resources (attention and/or working memory) after the first target is found. Experiment investigated dual-target visual search efficiency in standard conditions and with additional spatial working memory load. Additional working memory load did not have any significant impact in multiple target visual search efficiency. The results can due to the role of object, but not spatial working memory in this task. Alternative explanation assumes using special tools and strategies.

The Topology of Performance Curves during 72 Hours of Sleep Loss: A Memory and Search Task

1988 ◽  
Vol 40 (4) ◽  
pp. 737-756 ◽  
Author(s):  
Harvey Babkoff ◽  
Mario Mikulincer ◽  
Tamir Caspy ◽  
Daniel Kempinski ◽  
Helen Sing
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Search Task ◽  
Memory Load ◽  
Sleep Loss ◽  
Circadian Rhythmicity ◽  
Working Memory Load ◽  
Monotonic Trend ◽  
Performance Curves ◽  
Over Time

Three levels of working memory load of a visual search (Memory and Search) task were tested in a 72-hour sleep deprivation paradigm. General performance and accuracy decrease over time with monotonic and rhythmic components. The signal detection discriminability index, d', decreases monotonically with rhythmic variations. The index of response bias, β, shows no monotonic trend, but significant circadian rhythmicity. The extent of the monotonic and rhythmic changes in accuracy and in d’ is directly related to the level of working memory load. The amplitude of the circadian component of accuracy and d’ is enhanced for the higher levels of working memory load. The implication of potentiated circadian rhythmicity as a function of cumulative sleep loss is discussed.

scholarly journals Working memory availability affects neural indices of distractor processing during visual search

2018 ◽  
Author(s):  
Dion T. Henare ◽  
Jude Buckley ◽  
Paul M. Corballis
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Memory Load ◽  
Individual Performance ◽  
Event Related Potential ◽  
Neural Mechanisms ◽  
Human Cognition ◽  
Working Memory Load ◽  
Distractor Processing ◽  
Selective Processing

AbstractWorking memory and selective attention are traditionally viewed as distinct processes in human cognition. However, increasing research demonstrates significant overlap between these constructs such that as working memory availability decreases, individuals perform worse on attention-based tasks. To date, the neural mechanisms involved in this interaction are unknown. We measured three candidate lateralized event-related potential components (N2pc, Ptc, and SPCN) to observe the effects of increased working memory load on selective processing of targets and distractors. We found that increased working memory load impaired the processing of distractors, but not targets, and this was reflected in attentuation of the Ptc to distractors. We also found that individual performance on the task is related to the neural response to both targets and distractors. This study suggests that working memory availability impacts individuals’ ability to disengage from irrelevant stimuli, and that individual differences in visual search ability under load are related to both target and distractor processing.

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