scholarly journals The pupillary light response reflects visual working memory content.

2019 ◽  
Vol 45 (11) ◽  
pp. 1522-1528 ◽  
Author(s):  
Cecília Hustá ◽  
Edwin Dalmaijer ◽  
Artem Belopolsky ◽  
Sebastiaan Mathôt
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Light Response ◽  
Pupillary Light ◽  
Memory Content

scholarly journals The Pupillary Light Response Reflects Visual Working Memory Content

2018 ◽  
Author(s):  
Cecília Hustá ◽  
Edwin Dalmaijer ◽  
Artem Belopolsky ◽  
Sebastiaan Mathôt
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Pupil Size ◽  
Light Response ◽  
Memory Representation ◽  
Brain Areas ◽  
Active Memory ◽  
Pupillary Light ◽  
Memory Content ◽  
Higher Cognitive Functions

AbstractRecent studies have shown that the pupillary light response (PLR) is modulated by higher cognitive functions, presumably through activity in visual sensory brain areas. Here we use the PLR to test the involvement of sensory areas in visual working memory (VWM). In two experiments, participants memorized either bright or dark stimuli. We found that pupils were smaller when a pre-stimulus cue indicated that a bright stimulus should be memorized; this reflects a covert shift of attention during encoding of items into VWM. Crucially, we obtained the same result with a post-stimulus cue, which shows that internal shifts of attention within VWM affect pupil size as well. Strikingly, pupil size reflected VWM content only briefly. This suggests that a shift of attention within VWM momentarily activates an “active” memory representation, but that this representation quickly transforms into a “hidden” state that does not rely on sensory areas.

The pupillary light response reflects encoding, but not maintenance, in visual working memory.

2016 ◽  
Vol 42 (11) ◽  
pp. 1716-1723 ◽  
Author(s):  
Tessel Blom ◽  
Sebastiaan Mathôt ◽  
Christian N. L. Olivers ◽  
Stefan Van der Stigchel
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Light Response ◽  
Pupillary Light

scholarly journals The pupillary light response reflects encoding, but not maintenance, in visual working memory

2016 ◽  
Vol 16 (12) ◽  
pp. 363
Author(s):  
Stefan Van der Stigchel ◽  
Tessel Blom ◽  
Christiaan Olivers ◽  
Sebastiaan Mathot
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Light Response ◽  
Pupillary Light

scholarly journals Tracking stimulus representation across a 2-back visual working memory task

2020 ◽  
Vol 7 (8) ◽  
pp. 190228 ◽  
Author(s):  
Quan Wan ◽  
Ying Cai ◽  
Jason Samaha ◽  
Bradley R. Postle
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Memory Task ◽  
Memory Item ◽  
Neural Representation ◽  
Stimulus Representation ◽  
Representational Format ◽  
The Status ◽  
Memory Content ◽  
Default Assumption

How does the neural representation of visual working memory content vary with behavioural priority? To address this, we recorded electroencephalography (EEG) while subjects performed a continuous-performance 2-back working memory task with oriented-grating stimuli. We tracked the transition of the neural representation of an item ( n ) from its initial encoding, to the status of ‘unprioritized memory item' (UMI), and back to ‘prioritized memory item', with multivariate inverted encoding modelling. Results showed that the representational format was remapped from its initially encoded format into a distinctive ‘opposite' representational format when it became a UMI and then mapped back into its initial format when subsequently prioritized in anticipation of its comparison with item n + 2. Thus, contrary to the default assumption that the activity representing an item in working memory might simply get weaker when it is deprioritized, it may be that a process of priority-based remapping helps to protect remembered information when it is not in the focus of attention.

scholarly journals Visual working memory content influences correspondence processes.

2021 ◽  
Vol 47 (3) ◽  
pp. 331-343
Author(s):  
Elisabeth Hein ◽  
Madeleine Y. Stepper ◽  
Andrew Hollingworth ◽  
Cathleen M. Moore
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Memory Content

scholarly journals Focus of spatial attention during spatial working memory maintenance: Evidence from pupillary light response

2017 ◽  
Vol 25 (1-3) ◽  
pp. 10-20 ◽  
Author(s):  
J. H. Fabius ◽  
S. Mathôt ◽  
M. J. Schut ◽  
T. C. W. Nijboer ◽  
S. Van der Stigchel
Keyword(s):  
Working Memory ◽  
Spatial Attention ◽  
Spatial Working Memory ◽  
Light Response ◽  
Pupillary Light

scholarly journals Visual Working Memory Content Modulates Competition inBinocular Rivalry

2010 ◽  
Vol 10 (7) ◽  
pp. 352-352
Author(s):  
H. Chen ◽  
D. E. Anderson ◽  
A. Hollingworth ◽  
S. Vecera ◽  
C. M. Moore
Keyword(s):  
Working Memory ◽  
Visual Working Memory ◽  
Memory Content
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