Pupil size reflects successful encoding and recall of memory in humans - Publikacja - MOST Wiedzy


Pupil size reflects successful encoding and recall of memory in humans


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.


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Autorzy (8)

  • Zdjęcie użytkownika  Jaromir Dolezal

    Jaromir Dolezal

  • Zdjęcie użytkownika  Vaclav Kremen

    Vaclav Kremen

  • Zdjęcie użytkownika  Brent M. Berry

    Brent M. Berry

  • Zdjęcie użytkownika  Laura R. Miller

    Laura R. Miller

  • Zdjęcie użytkownika  Abigail L. Magee

    Abigail L. Magee

  • Zdjęcie użytkownika  Vratislav Fabian

    Vratislav Fabian

  • Zdjęcie użytkownika  Gregory A. Worrell

    Gregory A. Worrell

Informacje szczegółowe

Publikacja w czasopiśmie
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
Scientific Reports nr 8, strony 1 - 7,
ISSN: 2045-2322
Rok wydania:
Opis bibliograficzny:
Kucewicz M. T., Dolezal J., Kremen V., Berry B., Miller L., Magee A., Fabian V., Worrell G.: Pupil size reflects successful encoding and recall of memory in humans// Scientific Reports. -Vol. 8, iss. 4949 (2018), s.1-7
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1038/s41598-018-23197-6
Politechnika Gdańska

wyświetlono 24 razy

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