scholarly journals Neural correlates of visual working memory precision in frontal and parietal cortex

2014 ◽  
Vol 14 (10) ◽  
pp. 895-895
Author(s):  
Q. Yu ◽  
W. M. Shim
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Parietal Cortex ◽  
Neural Correlates ◽  
Memory Precision

scholarly journals Atypically larger variability of resource allocation accounts for visual working memory deficits in schizophrenia

2018 ◽  
Author(s):  
Yi-Jie Zhao ◽  
Tianye Ma ◽  
Xuemei Ran ◽  
Li Zhang ◽  
Ru-Yuan Zhang ◽  
...  
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Computational Models ◽  
Variable Precision ◽  
Capacity Theory ◽  
Healthy Control ◽  
New Perspective ◽  
Almost All ◽  
Memory Precision ◽  
Memory Resources

AbstractSchizophrenia patients are known to have profound deficits in visual working memory (VWM), and almost all previous studies attribute the deficits to decreased memory capacity. This account, however, ignores the potential contributions of other VWM components (e.g., memory precision). Here, we measure the VWM performance of schizophrenia patients and healthy control subjects on two classical delay-estimation tasks. Moreover, we thoroughly evaluate several established computational models of VWM to compare the performance of the two groups. We find that the model assuming variable precision across items and trials is the best model to explain the performance of both groups. According to the variable-precision model, schizophrenia subjects exhibit abnormally larger variability of allocating memory resources rather than resources per se. These results invite a rethink of the widely accepted decreased-capacity theory and propose a new perspective on the diagnosis and rehabilitation of schizophrenia.

scholarly journals The neural correlates of visual working memory encoding: A time-resolved fMRI study

2011 ◽  
Vol 49 (6) ◽  
pp. 1527-1536 ◽  
Author(s):  
J. Jay Todd ◽  
Suk Won Han ◽  
Stephenie Harrison ◽  
René Marois
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Neural Correlates ◽  
Memory Encoding ◽  
Time Resolved ◽  
Fmri Study

scholarly journals Neural Correlates of Visual Working Memory

Neuron ◽  
2002 ◽  
Vol 35 (5) ◽  
pp. 975-987 ◽  
Author(s):  
Luiz Pessoa ◽  
Eva Gutierrez ◽  
Peter A. Bandettini ◽  
Leslie G. Ungerleider
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Neural Correlates

Double dissociation in neural correlates of visual working memory: A PET study

2005 ◽  
Vol 25 (3) ◽  
pp. 747-759 ◽  
Author(s):  
J. Ventre-Dominey ◽  
A. Bailly ◽  
F. Lavenne ◽  
D. LeBars ◽  
H. Mollion ◽  
...  
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Neural Correlates ◽  
Double Dissociation

scholarly journals Dissociation of neural correlates of verbal and non-verbal visual working memory with different delays

2007 ◽  
Vol 3 (1) ◽  
pp. 56 ◽  
Author(s):  
Christoph Rothmayr ◽  
Oliver Baumann ◽  
Tor Endestad ◽  
Roland M Rutschmann ◽  
Svein Magnussen ◽  
...  
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Neural Correlates

scholarly journals Perceptual Precision Predicts Visual Working Memory Precision

2013 ◽  
Vol 13 (9) ◽  
pp. 1360-1360
Author(s):  
D. W. Sutterer ◽  
D. E. Anderson ◽  
E. Awh
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Memory Precision

scholarly journals Dopamine modulates visual working memory precision

2012 ◽  
Vol 12 (9) ◽  
pp. 350-350 ◽  
Author(s):  
N. Zokaei ◽  
N. Gorgoraptis ◽  
M. Husain
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Memory Precision
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