Roles of multiscale brain activity fluctuations in shaping the variability and dynamics of psychophysical performance

J. Matias Palva*, Satu Palva

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

42 Citations (Scopus)

Abstract

Spontaneous brain activity across many time scales influences sensory perception and human cognitive performance. Empirical insight into the underlying systems-level mechanisms has, however, remained fragmented. We review here recent studies on how wideband scale-free and scale-specific neuronal activity fluctuations together bias sensory processing and perceptual performance. We posit that these fluctuations constitute the neurophysiological foundation for both the trial-to-trial behavioral variability and the scaling laws governing psychophysical performance.

Original languageEnglish
Title of host publicationProgress in Brain Research
PublisherElsevier B.V.
Pages335-350
Number of pages16
DOIs
Publication statusPublished - 1 Jan 2011
MoE publication typeA3 Part of a book or another research book

Publication series

NameProgress in Brain Research
Volume193
ISSN (Print)0079-6123
ISSN (Electronic)1875-7855

Keywords

  • Attention
  • BOLD
  • Critical
  • Cross frequency
  • EEG
  • Fluctuation
  • FMRI
  • Infra
  • Interaction
  • Intrinsic connectivity
  • MEG
  • Network
  • Oscillation
  • Perception
  • Phase
  • Resting state
  • Scaling
  • Slow
  • Synchrony

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