High frequency oscillations are associated with cognitive processing in human recognition memory - Publikacja - MOST Wiedzy

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

Abstrakt

High frequency oscillations are associated with normal brain function, but also increasingly recognized as potential biomarkers of the epileptogenic brain. Their role in human cognition has been predominantly studied in classical gamma frequencies (30-100 Hz), which reflect neuronal network coordination involved in attention, learning and memory. Invasive brain recordings in animals and humans demonstrate that physiological oscillations extend beyond the gamma frequency range, but their function in human cognitive processing has not been fully elucidated. Here we investigate high frequency oscillations spanning the high gamma (50-125 Hz), ripple (125-250 Hz) and fast ripple (250-500 Hz) frequency bands using intracranial recordings from 12 patients (five males and seven females, age 21-63 years) during memory encoding and recall of a series of affectively charged images. Presentation of the images induced high frequency oscillations in all three studied bands within the primary visual, limbic and higher order cortical regions in a sequence consistent with the visual processing stream. These induced oscillations were detected on individual electrodes localized in the amygdala, hippocampus and specific neocortical areas, revealing discrete oscillations of characteristic frequency, duration and latency from image presentation. Memory encoding and recall significantly modulated the number of induced high gamma, ripple and fast ripple detections in the studied structures, which was greater in the primary sensory areas during the encoding (Wilcoxon rank sum test, P = 0.002) and in the higher-order cortical association areas during the recall (Wilcoxon rank sum test, P = 0.001) of memorized images. Furthermore, the induced high gamma, ripple and fast ripple responses discriminated the encoded and the affectively charged images. In summary, our results show that high frequency oscillations, spanning a wide range of frequencies, are associated with memory processing and generated along distributed cortical and limbic brain regions. These findings support an important role for fast network synchronization in human cognition and extend our understanding of normal physiological brain activity during memory processing

Cytowania

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Autorzy (11)

  • Zdjęcie użytkownika dr Michał Tomasz Kucewicz

    Michał Tomasz Kucewicz dr

    • Mayo Clinic Departament of Neurology
  • Zdjęcie użytkownika  Jan Cymbalnik

    Jan Cymbalnik

    • Mayo Clinic Departament of Neurology
  • Zdjęcie użytkownika  Joseph Matsumoto

    Joseph Matsumoto

    • Mayo Clinic Departament of Neurology
  • Zdjęcie użytkownika  Benjamin H. Brinkmann

    Benjamin H. Brinkmann

    • Mayo Clinic Departament of Neurology
  • Zdjęcie użytkownika  Mark R. Bower

    Mark R. Bower

    • Mayo Clinic Departament of Neurology
  • Zdjęcie użytkownika  Vincent Vasoli

    Vincent Vasoli

    • Mayo Clinic Departament of Neurology
  • Zdjęcie użytkownika  Vladimir Sulc

    Vladimir Sulc

    • Mayo Clinic Departament of Neurology
  • Zdjęcie użytkownika  Fred Meyer

    Fred Meyer

    • Mayo Clinic Departament of Neurosurgery
  • Zdjęcie użytkownika  W.r. Marsh

    W.r. Marsh

    • Mayo Clinic Departament of Neurosurgery
  • Zdjęcie użytkownika  S. M. Stead

    S. M. Stead

    • Mayo Clinic Departament of Neurology
  • Zdjęcie użytkownika  Gregory A. Worrell

    Gregory A. Worrell

    • Mayo Clinic Departament of Neurology

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
Brain: A Journal of Neurology nr 137, strony 2231 - 2244,
ISSN: 0006-8950
Język:
angielski
Rok wydania:
2014
Opis bibliograficzny:
Kucewicz M., Cymbalnik J., Matsumoto J., Brinkmann B., Bower M., Vasoli V., Sulc V., Meyer F., Marsh W., Stead S., Worrell G.: High frequency oscillations are associated with cognitive processing in human recognition memory// Brain: A Journal of Neurology. -Vol. 137, nr. 8 (2014), s.2231-2244
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1093/brain/awu149
Weryfikacja:
Politechnika Gdańska

wyświetlono 38 razy

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