Human verbal memory encoding is hierarchically distributed in a continuous processing stream - Publikacja - MOST Wiedzy

Twoje konto

zaloguj

Wyszukiwarka

  1. Strona główna
  2. Publikacje
  3. H
  4. Human verbal memory encoding is hierarchically distributed in a continuous processing stream

Human verbal memory encoding is hierarchically distributed in a continuous processing stream

Abstrakt

Processing of memory is supported by coordinated activity in a network of sensory, association, and motor brain regions. It remains a major challenge to determine where memory is encoded for later retrieval. Here we used direct intracranial brain recordings from epilepsy patients performing free recall tasks to determine the temporal pattern and anatomical distribution of verbal memory encoding across the entire human cortex. High gamma frequency activity (65-115 Hz) showed consistent power responses during encoding of subsequently recalled and forgotten words on a subset of electrodes localized in 16 distinct cortical areas activated in the tasks. More of the high gamma power during word encoding, and less power before and after the word presentation, was characteristic of successful recall and observed across multiple brain regions. Latencies of the induced power changes and this subsequent memory effect between the recalled and forgotten words followed an anatomical sequence from visual to prefrontal cortical areas. Finally, the magnitude of the memory effect was unexpectedly found to be the largest in selected brain regions both at the top and at the bottom of the processing stream. These included the language processing areas of the prefrontal cortex and the downstream visual areas at the junction of the occipital and temporal lobes. Our results provide evidence for distributed encoding of verbal memory organized along a hierarchical posterior-to-anterior processing stream.

Michał Tomasz Kucewicz, Krishnakant Saboo, Brent M. Berry, Vaclav Kremen, Laura R. Miller, Fatemeh Khadjevand, Cory S. Inman, Paul A. Wanda, Michael R. Sperling, Richard Gorniak, Kathryn A. Davis, Barbara C. Jobst, Bradley Lega, Sameer A. Sheth, Daniel S. Rizzuto, Ravishankar K Iyer, Michael J. Kahana, Gregory A. Worrell. (2019). Human verbal memory encoding is hierarchically distributed in a continuous processing stream, 6(1), 1-31.

Autorzy

Słowa kluczowe

Pełna treść

pełna treść artykułu zobacz w serwisie zewnętrznym otwiera się w nowej karcie
wyślij prośbę o udostępnienie publikacji

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
publikacja w in. zagranicznym czasopiśmie naukowym (tylko język obcy)
Opublikowano w:
eNeuro nr 6, strony 1 - 31,
ISSN: 2373-2822
Język:
angielski
Rok wydania:
2019
Opis bibliograficzny:
Kucewicz M., Saboo K., Berry B., Kremen V., Miller L., Khadjevand F., Inman C., Wanda P., Sperling M., Gorniak R., Davis K., Jobst B., Lega B., Sheth S., Rizzuto D., Iyer R., Kahana M., Worrell G.. Human verbal memory encoding is hierarchically distributed in a continuous processing stream. eNeuro, 2019, Vol. 6, nr. 1, s.1-31
Źródła finansowania:

wyświetlono 3 razy

Publikacje, które mogą cię zainteresować

Dissecting gamma frequency activities during human memory processing

2017

Widespread theta synchrony and high-frequency desynchronization underlies enhanced cognition

  • E. Solomon,
  • J. Kragiel,
  • M. Sperling
  • + 12 autorów
2017

Human memory enhancement through electrical stimulation in the temporal cortex

2018

High frequency oscillations are associated with cognitive processing in human recognition memory

2014
Meta Tagi