scholarly journals Distinct roles for frontal and parietal cortex in visual working memory and attention

2010 ◽  
Vol 9 (8) ◽  
pp. 168-168
Author(s):  
S. Offen ◽  
J. Gardner ◽  
D. Schluppeck ◽  
D. Heeger
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Parietal Cortex ◽  
Memory And Attention

scholarly journals Visual working memory and attention in early visual cortex

2010 ◽  
Vol 6 (6) ◽  
pp. 1091-1091
Author(s):  
S. Offen ◽  
D. Schluppeck ◽  
D. J. Heeger
Keyword(s):  
Working Memory ◽  
Visual Cortex ◽  
Visual Working Memory ◽  
Memory And Attention ◽  
Early Visual Cortex

scholarly journals Interactions between long-term visual working memory and attention

2010 ◽  
Vol 5 (8) ◽  
pp. 422-422
Author(s):  
D. A. Varakin ◽  
D. T. Levin
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Memory And Attention

scholarly journals Visual working memory representations in visual and parietal cortex do not remap after eye movements

2019 ◽  
Author(s):  
Tao He ◽  
Matthias Ekman ◽  
Annelinde R.E. Vandenbroucke ◽  
Floris P. de Lange
Keyword(s):  
Working Memory ◽  
Visual Cortex ◽  
Eye Movements ◽  
Visual Field ◽  
Visual System ◽  
Visual Working Memory ◽  
Parietal Cortex ◽  
List Type ◽  
Early Visual Cortex

ABSTRACTIt has been suggested that our visual system does not only process stimuli that are directly available to our eyes, but also has a role in maintaining information in VWM over a period of seconds. It remains unclear however what happens to VWM representations in the visual system when we make saccades. Here, we tested the hypothesis that VWM representations are remapped within the visual system after making saccades. We directly compared the content of VWM for saccade and no-saccade conditions using MVPA of delay-related activity measured with fMRI. We found that when participants did not make a saccade, VWM representations were robustly present in contralateral early visual cortex. When making a saccade, VWM representations degraded in contralateral V1-V3 after the saccade shifted the location of the remembered grating to the opposite visual field. However, contrary to our hypothesis we found no evidence for the representations of the remembered grating at the saccadic target location in the opposite visual field, suggesting that there is no evidence for remapping of VWM in early visual cortex. Interestingly, IPS showed persistent VWM representations in both the saccade and no-saccade condition. Together, our results indicate that VWM representations in early visual cortex are not remapped across eye movements, potentially limiting the role of early visual cortex in VWM storage.HighlightsVisual working memory (VWM) representations do not remap after making saccadesEye movement degrade VWM representations in early visual cortex, limiting the role of early visual cortex in VWM storageParietal cortex shows persistent VWM representations across saccades

scholarly journals The relationship between visual working memory and attention: retention of precise colour information in the absence of effects on perceptual selection

2013 ◽  
Vol 368 (1628) ◽  
pp. 20130061 ◽  
Author(s):  
Andrew Hollingworth ◽  
Seongmin Hwang
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Alternative Hypothesis ◽  
Memory And Attention ◽  
Single Form ◽  
Feature Based ◽  
Precise Representation ◽  
Feature Memory ◽  
The Relationship ◽  
Perceptual Selection

We examined the conditions under which a feature value in visual working memory (VWM) recruits visual attention to matching stimuli. Previous work has suggested that VWM supports two qualitatively different states of representation: an active state that interacts with perceptual selection and a passive (or accessory) state that does not. An alternative hypothesis is that VWM supports a single form of representation, with the precision of feature memory controlling whether or not the representation interacts with perceptual selection. The results of three experiments supported the dual-state hypothesis. We established conditions under which participants retained a relatively precise representation of a parcticular colour. If the colour was immediately task relevant, it reliably recruited attention to matching stimuli. However, if the colour was not immediately task relevant, it failed to interact with perceptual selection. Feature maintenance in VWM is not necessarily equivalent with feature-based attentional selection.

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