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Kucewicz, Michal T Cimbalnik, Jan Matsumoto, Joseph Y Brinkmann, Benjamin H Bower, Mark R Vasoli, Vincent Sulc, Vlastimil Meyer, Fred Marsh, W R Stead, S M Worrell, Gregory a
Original Title
High frequency oscillations are associated with cognitive processing in human recognition memory
Type
journal article in Web of Science
Language
English
Original Abstract
Oscillations in the high gamma (50-125Hz), ripple (125-250Hz) and fast ripple (250-500Hz) frequency bands are known to emerge from coordinated activity of neuronal assemblies but their role in cognitive functions remains elusive. We recorded high frequency oscillations (HFOs) from multiple cortical and subcortical structures in human brain during encoding and recall of a series of affectively charged images. Viewing of the images induced distributed HFOs in the primary visual, limbic and higher order cortical networks, which ranged up to 1000Hz. These induced oscillations comprised discrete events, which had characteristic latency, duration, frequency and spectral amplitude; they were differentially modulated by memory encoding and recall, and predicted the affective value and memory for the encoded images. Our results suggest that individual discharges of high frequency oscillations, generated by synchronized activity of local cortical and limbic neuronal networks, reflect a fundamental unit of human cognitive processing.
Keywords
high frequency oscillations, cognitive processing, memory, gamma oscillations,neural networks
Authors
Released
16. 4. 2014
Publisher
OXFORD UNIV PRESS, GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISBN
1460-2156
Periodical
Brain; a journal of neurology
Year of study
137
Number
8
State
United Kingdom of Great Britain and Northern Ireland
Pages from
2231
Pages to
2244
Pages count
14
BibTex
@article{BUT107251, author="Jan {Cimbálník} and Michal T. {Kucewicz} and Joseph Y. {Matsumoto} and Benjamin H. {Brinkmann} and Mark {Bower} and Vlastimil {Sulc} and Fred {Marsh} and Gregory {Worrell}", title="High frequency oscillations are associated with cognitive processing in human recognition memory", journal="Brain; a journal of neurology", year="2014", volume="137", number="8", pages="2231--2244", doi="10.1093/brain/awu149", issn="1460-2156" }