scholarly journals The impact of binocular disparity on visual short-term memory

2015 ◽  
Vol 15 (12) ◽  
pp. 836
Author(s):  
Sarah Zohar ◽  
Laurie Wilcox
Keyword(s):  
Short Term Memory ◽  
Binocular Disparity ◽  
Short Term ◽  
Term Memory ◽  
Visual Short Term Memory ◽  
The Impact

scholarly journals Linking the impact of aging on visual short-term memory capacity with changes in the structural connectivity of posterior thalamus to occipital cortices

NeuroImage ◽  
2020 ◽  
Vol 208 ◽  
pp. 116440 ◽  
Author(s):  
Aurore Menegaux ◽  
Felix J.B. Bäuerlein ◽  
Aliki Vania ◽  
Natan Napiorkowski ◽  
Julia Neitzel ◽  
...  
Keyword(s):  
Short Term Memory ◽  
Structural Connectivity ◽  
Memory Capacity ◽  
Short Term ◽  
Term Memory ◽  
Posterior Thalamus ◽  
Visual Short Term Memory ◽  
The Impact

scholarly journals The neural basis of precise visual short-term memory for complex recognisable objects

2016 ◽  
Author(s):  
Michele Veldsman ◽  
Daniel J. Mitchell ◽  
Rhodri Cusack
Keyword(s):  
Short Term Memory ◽  
Brain Regions ◽  
Core Network ◽  
Neural Basis ◽  
Short Term ◽  
Term Memory ◽  
Photographic Images ◽  
Visual Short Term Memory ◽  
Stimulus Generation ◽  
The Impact

AbstractRecent evidence suggests that visual short-term memory (VSTM) capacity estimated using simple objects, such as colours and oriented bars, may not generalise well to more naturalistic stimuli. More visual detail can be stored in VSTM when complex, recognisable objects are maintained compared to simple objects. It is not yet known if it is recognisability that enhances memory precision, nor whether maintenance of recognisable objects is achieved with the same network of brain regions supporting maintenance of simple objects.We used a novel stimulus generation method to parametrically warp photographic images along a continuum, allowing separate estimation of the precision of memory representations and the number of items retained. The stimulus generation method was also designed to create unrecognisable, though perceptually matched, stimuli, to investigate the impact of recognisability on VSTM. We adapted the widely-used change detection and continuous report paradigms for use with complex, photographic images.Across three functional magnetic resonance imaging (fMRI) experiments, we demonstrated greater precision for recognisable objects in VSTM compared to unrecognisable objects. This clear behavioural advantage was not the result of recruitment of additional brain regions, or of stronger mean activity within the core network. Representational similarity analysis revealed greater variability across item repetitions in the representations of recognisable, compared to unrecognisable complex objects. We therefore propose that a richer range of neural representations support VSTM for complex recognisable objects.

scholarly journals 2E3-5 Effects of time-series changes of partial binocular disparity on visual short-term memory

2014 ◽  
Vol 50 (Supplement) ◽  
pp. S356-S357
Author(s):  
Hiroyuki MORIKAWA ◽  
Anna NISHIBU ◽  
Natsuho YAMAMOTO ◽  
Sanghyun KIM ◽  
Reiko MITSUYA ◽  
...  
Keyword(s):  
Time Series ◽  
Short Term Memory ◽  
Binocular Disparity ◽  
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.

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