scholarly journals Cancer ‘survivor-care’: II. Disruption of prefrontal brain activation top-down control of working memory capacity as possible mechanism for chemo-fog/brain (chemotherapy-associated cognitive impairment)

2013 ◽  
Vol 38 (4) ◽  
pp. 265-268 ◽  
Author(s):  
R. B. Raffa
Keyword(s):  
Working Memory ◽  
Cognitive Impairment ◽  
Cancer Survivor ◽  
Working Memory Capacity ◽  
Brain Activation ◽  
Memory Capacity ◽  
Top Down ◽  
Chemo Fog

scholarly journals Working memory capacity influences the top-down factors in visual search

2010 ◽  
Vol 6 (6) ◽  
pp. 130-130
Author(s):  
K. Sobel ◽  
M. Gerrie ◽  
M. Kane ◽  
B. Poole
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Top Down

scholarly journals Individual differences in working memory capacity and visual search: The roles of top-down and bottom-up processing

2007 ◽  
Vol 14 (5) ◽  
pp. 840-845 ◽  
Author(s):  
Kenith V. Sobel ◽  
Matthew P. Gerrie ◽  
Bradley J. Poole ◽  
Michael J. Kane
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Visual Search ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Top Down ◽  
Bottom Up

scholarly journals Differences in Working-Memory Capacity Modulate Top-down Control of Social Attention

2018 ◽  
Author(s):  
Ali Momen ◽  
Eva Wiese
Keyword(s):  
Working Memory ◽  
Memory Load ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Human Robot Interaction ◽  
Gaze Following ◽  
Social Relevance ◽  
Top Down ◽  
Robot Interaction ◽  
Positive Effects

Gaze following, or our ability to attend to where others are looking can be top-down controlled by context information about the social relevance of the gaze signal. In particular, it has been shown that gaze signals are followed more strongly when the gazer is believed to have a mind with the ability to show intentional behavior (i.e., human) compared to being pre-programmed (i.e., robot). Perceiving human traits in nonhuman agents (i.e., anthropomorphism) occurs naturally in human-robot interaction, where it has positive effects on performance. It can also attenuate performance, if the robot is designed in a way that makes it hard to categorize as human or nonhuman (e.g., humanoid appearance), and inflicts additional working memory load due to categorical ambiguity. Here, we examine if gaze signals of ambiguous humanoid agents are followed differently than those of unambiguous human or robot agents, and to what extent gaze following is affected by individual differences in working memory capacity (WMC). We assume participants with high versus low WMC to be more capable of suppressing reflexive gaze following behaviors to the cued location in a counter-predictive paradigm (where targets appear with high likelihoods at uncued locations), particularly when being cued by humanoid gazers (top-down control, which requires cognitive resources). While the analysis showed no effect of categorical ambiguity on top-down control abilities overall, it revealed that participants with low WMC had weaker top-down control than participants with high WMC for the most ambiguous humanoid agent. The results are discussed with regard to the design of social agents and human-robot interaction

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