Dynamic visual noise: No interference with visual short‐term memory or the construction of visual images

2005 ◽  
Vol 17 (3) ◽  
pp. 405-424 ◽  
Author(s):  
S. E. Avons ◽  
Carlo Sestieri
Keyword(s):  
Short Term Memory ◽  
Visual Noise ◽  
Visual Images ◽  
Dynamic Visual Noise ◽  
Short Term ◽  
Term Memory ◽  
Visual Short Term Memory

Dynamic Visual Noise Affects Visual Short-Term Memory for Surface Color, but not Spatial Location

2010 ◽  
Vol 57 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Kevin Dent
Keyword(s):  
Short Term Memory ◽  
Spatial Location ◽  
Visual Noise ◽  
Dynamic Visual Noise ◽  
Short Term ◽  
Surface Color ◽  
Term Memory ◽  
Visual Short Term Memory ◽  
Experimental Tool ◽  
Spatial Locations

In two experiments participants retained a single color or a set of four spatial locations in memory. During a 5 s retention interval participants viewed either flickering dynamic visual noise or a static matrix pattern. In Experiment 1 memory was assessed using a recognition procedure, in which participants indicated if a particular test stimulus matched the memorized stimulus or not. In Experiment 2 participants attempted to either reproduce the locations or they picked the color from a whole range of possibilities. Both experiments revealed effects of dynamic visual noise (DVN) on memory for colors but not for locations. The implications of the results for theories of working memory and the methodological prospects for DVN as an experimental tool are discussed.

Time Window from Visual Images to Visual Short-Term Memory: Consolidation or Integration?

2004 ◽  
Vol 51 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Yuhong Jiang
Keyword(s):  
Short Term Memory ◽  
Time Window ◽  
Short Interval ◽  
Visual Images ◽  
Short Term ◽  
Temporal Window ◽  
Term Memory ◽  
Visual Short Term Memory ◽  
Probe Task ◽  
Long Time

Abstract. When two dot arrays are briefly presented, separated by a short interval of time, visual short-term memory of the first array is disrupted if the interval between arrays is shorter than 1300-1500 ms ( Brockmole, Wang, & Irwin, 2002 ). Here we investigated whether such a time window was triggered by the necessity to integrate arrays. Using a probe task we removed the need for integration but retained the requirement to represent the images. We found that a long time window was needed for performance to reach asymptote even when integration across images was not required. Furthermore, such window was lengthened if subjects had to remember the locations of the second array, but not if they only conducted a visual search among it. We suggest that a temporal window is required for consolidation of the first array, which is vulnerable to disruption by subsequent images that also need to be memorized.

Short-term memory recall of visual patterns under static and dynamic visual noise.

2016 ◽  
Vol 9 (1) ◽  
pp. 46-53 ◽  
Author(s):  
Rafael Vasques ◽  
Ricardo Basso Garcia ◽  
Cesar Galera
Keyword(s):  
Short Term Memory ◽  
Visual Noise ◽  
Memory Recall ◽  
Dynamic Visual Noise ◽  
Short Term ◽  
Term Memory ◽  
Visual Patterns

scholarly journals Insensitivity of visual short-term memory to irrelevant visual information

2002 ◽  
Vol 55 (3) ◽  
pp. 753-774 ◽  
Author(s):  
Jackie Andrade ◽  
Eva Kemps ◽  
Yves Werniers ◽  
Jon May ◽  
Arnaud Szmalec
Keyword(s):  
Working Memory ◽  
Visual Processing ◽  
Visual Imagery ◽  
Visual Information ◽  
Short Term Memory ◽  
Verbal Working Memory ◽  
Visual Noise ◽  
Short Term ◽  
Term Memory ◽  
Visual Short Term Memory

Several authors have hypothesized that visuo-spatial working memory is functionally analogous to verbal working memory. Irrelevant background speech impairs verbal short-term memory. We investigated whether irrelevant visual information has an analogous effect on visual short-term memory, using a dynamic visual noise (DVN) technique known to disrupt visual imagery (Quinn & McConnell, 1996b). Experiment 1 replicated the effect of DVN on pegword imagery. Experiments 2 and 3 showed no effect of DVN on recall of static matrix patterns, despite a significant effect of a concurrent spatial tapping task. Experiment 4 showed no effect of DVN on encoding or maintenance of arrays of matrix patterns, despite testing memory by a recognition procedure to encourage visual rather than spatial processing. Serial position curves showed a one-item recency effect typical of visual short-term memory. Experiment 5 showed no effect of DVN on short-term recognition of Chinese characters, despite effects of visual similarity and a concurrent colour memory task that confirmed visual processing of the characters. We conclude that irrelevant visual noise does not impair visual short-term memory. Visual working memory may not be functionally analogous to verbal working memory, and different cognitive processes may underlie visual short-term memory and visual imagery.

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