scholarly journals Characterizing the time course of decision-making in change detection

2021 ◽  
Author(s):  
Anthea Grace Blunden ◽  
Dylan Hammond ◽  
Piers Howe ◽  
Daniel R. Little
Keyword(s):  
Change Detection ◽  
Time Course ◽  
Short Term Memory ◽  
Large Set ◽  
Short Term ◽  
Modeling Framework ◽  
Integration Model ◽  
First Order ◽  
Visual Short Term Memory ◽  
Or Task

We propose a novel modeling framework for characterizing the time course of change detection based on information held in visual short-term memory. Specifically, we seek to answer whether change detection is better captured by a first-order integration model, in which information is pooled from each location, or a second-order integration model, in which each location is processed independently. We diagnose whether change detection across locations proceeds in serial or parallel and how processing is affected by the stopping rule (i.e., detecting any change versus detecting all changes; Experiment 1) and how the efficiency of detection is affected by the number of changes in the display (Experiment 2). We find that although capacity is generally limited in both tasks, architecture varies from parallel self-terminating in the OR task to serial self-terminating in the AND task. Our novel framework allows model comparisons across a large set of models ruling out several competing explanations of change detection.

scholarly journals Do change detection measures underestimate the capacity of visual short-term memory?

2010 ◽  
Vol 7 (9) ◽  
pp. 663-663 ◽  
Author(s):  
J.-F. Delvenne ◽  
A. Cleeremans ◽  
C. Laloyaux
Keyword(s):  
Change Detection ◽  
Short Term Memory ◽  
Short Term ◽  
Term Memory ◽  
Visual Short Term Memory

scholarly journals Binding in Short-Term Visual Memory: Reassessing Whole Display Interference

2019 ◽  
Author(s):  
Stephen Rhodes ◽  
Nelson Cowan ◽  
Mario Parra Rodrigues ◽  
Robert H Logie
Keyword(s):  
Change Detection ◽  
Visual Memory ◽  
Short Term Memory ◽  
Detection Accuracy ◽  
Short Term ◽  
Task Constraints ◽  
Term Memory ◽  
Multiple Test ◽  
Visual Short Term Memory ◽  
Single Probe

Here we reassess the finding, originally reported by Wheeler and Treisman (2002), that change detection accuracy for bindings of features is particularly impaired by a whole display probe, in which multiple test items are presented, relative to a single probe. Importantly, the different methods of probing visual short-term memory place different constraints on how information regarding features and their combination can be used to respond. In Experiments 1 and 2 of the present work we use simple processing models of change detection to account for the different task constraints and find no evidence for binding specific whole display interference. Experiment 3 then makes a simple alteration to the single probe task which allows for a more direct comparison of accuracy between the two probing methods and also fails to demonstrate binding specific whole display interference. We argue that the original finding is more reflective of how different change detection tasks allow for different uses of information in memory, rather than reflecting a property of visual short-term memory itself.

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.

Sign in / Sign up

Export Citation Format

Share Document