Visual working memory impairs visual detection: A function of working memory load or sensory load?

2021 ◽  
Vol 47 (12) ◽  
pp. 1659-1672
Author(s):  
Yang Guo ◽  
Jiawen Liang ◽  
Nailang Yao ◽  
Mowei Shen ◽  
Zaifeng Gao
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Visual Detection ◽  
Memory Load ◽  
Working Memory Load

scholarly journals Visual working memory load does not eliminate visuomotor repetition effects

2019 ◽  
Vol 82 (3) ◽  
pp. 1290-1303
Author(s):  
Jason Rajsic ◽  
Matthew D. Hilchey ◽  
Geoffrey F. Woodman ◽  
Jay Pratt
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Memory Load ◽  
Repetition Effects ◽  
Working Memory Load

scholarly journals Neural mechanisms underlying the precision of visual working memory

2018 ◽  
Author(s):  
Yijie Zhao ◽  
Shuguang Kuai ◽  
Theodore P. Zanto ◽  
Yixuan Ku
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Memory Load ◽  
Neural Mechanisms ◽  
Behavioral Experiment ◽  
Working Memory Load ◽  
Lateral Occipital Complex ◽  
The Individual ◽  
Memory Precision ◽  
The Brain

AbstractThe neural mechanisms associated with the limited capacity of working memory has long been studied, but it is still unclear how the brain maintains the fidelity of representations in working memory. Here, an orientation recall task for estimating the precision of visual working memory was performed both inside and outside an fMRI scanner. Results showed that the trial-by-trial recall error (in radians) was correlated with delay period activity in the lateral occipital complex (LOC) during working memory maintenance, regardless of the memory load. Moreover, delay activity in LOC also correlated with the individual participant’s precision of working memory from a separate behavioral experiment held two weeks prior. Furthermore, a region within the prefrontal cortex, the inferior frontal junction (IFJ), exhibited greater functional connectivity with LOC when the working memory load increased. Together, our findings provide unique evidence that the LOC supports visual working memory precision, while communication between the IFJ and LOC varys with visual working memory load.

Sign in / Sign up

Export Citation Format

Share Document