scholarly journals Working memory, feature-based attention, and their interaction modulate the perception of motion direction in human observers

2010 ◽  
Vol 10 (7) ◽  
pp. 709-709
Author(s):  
D. Mendoza ◽  
M. Schneiderman ◽  
J. Martinez-Trujillo
Keyword(s):  
Working Memory ◽  
Motion Direction ◽  
Feature Based

scholarly journals Combined effects of feature-based working memory and feature-based attention on the perception of visual motion direction

2011 ◽  
Vol 11 (1) ◽  
pp. 11-11 ◽  
Author(s):  
D. Mendoza ◽  
M. Schneiderman ◽  
C. Kaul ◽  
J. Martinez-Trujillo
Keyword(s):  
Working Memory ◽  
Visual Motion ◽  
Combined Effects ◽  
Motion Direction ◽  
Feature Based

Working Memory Within The Visual Dorsal Stream: Brain Potentials of Spatial Location and Motion Direction Encoding Into Memory

1998 ◽  
Vol 96 (1-2) ◽  
pp. 87-105 ◽  
Author(s):  
Manuel Martín-Loeches ◽  
Berenice Valdés ◽  
Gregorio Gómez-Jarabo ◽  
Francisco J. Rubia
Keyword(s):  
Working Memory ◽  
Dorsal Stream ◽  
Spatial Location ◽  
Motion Direction ◽  
Brain Potentials

scholarly journals Feature-based attentional weighting and spreading in visual working memory

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Marcel Niklaus ◽  
Anna C. Nobre ◽  
Freek van Ede
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Feature Based

scholarly journals Multiple types of navigational information are independently encoded in the population activities of the dentate gyrus neurons

2020 ◽  
Author(s):  
Tomoyuki Murano ◽  
Ryuichi Nakajima ◽  
Akito Nakao ◽  
Nao Hirata ◽  
Satoko Amemori ◽  
...  
Keyword(s):  
Machine Learning ◽  
Working Memory ◽  
Dentate Gyrus ◽  
Open Field ◽  
Activity Patterns ◽  
Spatial Coding ◽  
Motion Direction ◽  
Freely Moving ◽  
Types Of Information ◽  
Decoding Accuracy

AbstractThe dentate gyrus (DG) plays critical roles in cognitive functions such as learning, memory, and spatial coding, and its dysfunction is implicated in various neuropsychiatric disorders. However, it remains largely unknown how information is represented in this region. Here, we recorded neuronal activity in the DG using Ca2+ imaging in freely moving mice and analysed this activity using machine learning. The activity patterns of populations of DG neurons enabled us to successfully decode position, speed, and motion direction in an open field as well as current and future location in a T-maze, and each individual neuron was diversely and independently tuned to these multiple information types. In αCaMKII heterozygous knockout mice, which present deficits in spatial remote and working memory, the decoding accuracy of position in the open field and future location in the T-maze were selectively reduced. These results suggest that multiple types of information are independently distributed in DG neurons.

scholarly journals Comparing the prioritisation of items and feature-dimensions in visual working memory

2019 ◽  
Author(s):  
Jasper E. Hajonides ◽  
Freek van Ede ◽  
Mark G. Stokes ◽  
Anna C. Nobre
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Recall Performance ◽  
Relevant Information ◽  
Recall Accuracy ◽  
Sensory Inputs ◽  
Item Level ◽  
Feature Based ◽  
Feature Dimension ◽  
Directing Attention

AbstractSelective attention can be directed not only to external sensory inputs, but also to internal sensory representations held within visual working memory (VWM). To date, this has been studied predominantly following retrospective cues directing attention to particular items, or their locations in memory. In addition to item-level attentional prioritisation, recent studies have shown that selectively attending to feature dimensions in VWM can also improve memory recall performance. However, no study to date has directly compared item-based and feature-based attention in VWM, nor their neural bases. Here, we compared the benefits of retrospective cues (retro-cues) that were directed either at a multi-feature item or at a feature-dimension that was shared between two spatially segregated items. Behavioural results revealed qualitatively similar attentional benefits in both recall accuracy and response time, but also showed that cueing benefits were larger following item cues. Concurrent EEG measurements further revealed a similar attenuation of posterior alpha oscillations following both item and feature retro-cues when compared to non-informative, neutral retro-cues. We argue that attention can act flexibly to prioritise the most relevant information – at either the item or the feature-level – to optimise ensuing memory-based task performance, and we discuss the implications of the observed commonalities and differences between item-level and feature-level prioritisation in VWM.

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