Pupil size reflects successful encoding and recall of memory in humans

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00321254" target="_blank" >RIV/68407700:21230/18:00321254 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21730/18:00321254
Result on the web
<a href="https://www.nature.com/articles/s41598-018-23197-6" target="_blank" >https://www.nature.com/articles/s41598-018-23197-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41598-018-23197-6" target="_blank" >10.1038/s41598-018-23197-6</a>

Result language
angličtina
Original language name
Pupil size reflects successful encoding and recall of memory in humans
Original language description
Pupil responses are known to indicate brain processes involved in perception, attention and decision-making. They can provide an accessible biomarker of human memory performance and cognitive states in general. Here we investigated changes in the pupil size during encoding and recall of word lists. Consistent patterns in the pupil response were found across and within distinct phases of the free recall task. The pupil was most constricted in the initial fixation phase and was gradually more dilated through the subsequent encoding, distractor and recall phases of the task, as the word items were maintained in memory. Within the final recall phase, retrieving memory for individual words was associated with pupil dilation in absence of visual stimulation. Words that were successfully recalled showed significant differences in pupil response during their encoding compared to those that were forgotten - the pupil was more constricted before and more dilated after the onset of word presentation. Our results suggest pupil size as a potential biomarker for probing and modulation of memory processing.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20601 - Medical engineering

Project
<a href="/en/project/TH01010233" target="_blank" >TH01010233: Application of eye tracking technology to testing of competencies</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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