A mechanism for cognitive dynamics: neuronal communication through neuronal coherence

@article{Fries2005AMF,
  title={A mechanism for cognitive dynamics: neuronal communication through neuronal coherence},
  author={Pascal Fries},
  journal={Trends in Cognitive Sciences},
  year={2005},
  volume={9},
  pages={474-480}
}
  • P. Fries
  • Published 1 October 2005
  • Medicine, Psychology
  • Trends in Cognitive Sciences
At any one moment, many neuronal groups in our brain are active. Microelectrode recordings have characterized the activation of single neurons and fMRI has unveiled brain-wide activation patterns. Now it is time to understand how the many active neuronal groups interact with each other and how their communication is flexibly modulated to bring about our cognitive dynamics. I hypothesize that neuronal communication is mechanistically subserved by neuronal coherence. Activated neuronal groups… Expand

Figures and Topics from this paper

Discovering oscillatory interaction networks with M/EEG: challenges and breakthroughs
TLDR
These data show that synchronization is a robust and behaviorally significant phenomenon in task-relevant cortical networks and could hence bind distributed neuronal processing to coherent cognitive states. Expand
A future for neuronal oscillation research
TLDR
Recent advances in large-scale neuronal population recordings and more direct, higher fidelity, non-invasive measurement of whole brain function suggest much progress is just around the corner. Expand
Neuronal coherence and its functional role in communication between neurons
Neuronal oscillations are observed in many brain areas in various frequency bands. Each of the frequency bands is associated with a particular functional role. Gamma oscillations (30-80 Hz) areExpand
Neuronal communication through coherence in the human motor system
TLDR
The coherence measure was used to quantify oscillatory synchronization between neuronal groups and test the prediction that phase locked oscillatory activity between neurons makes their interaction effective and selective. Expand
Functional connectivity and oscillatory neuronal activity in the resting human brain
TLDR
The integration of different lines of evidence from hemodynamic and electrophysiological studies suggests that rapid changes of synchronized oscillatory activity in distributed brain networks is relevant for the ongoing maintenance and modulation of the task representations that form the basis of the authors' cognitive flexibility. Expand
Neuronal coherence during selective attentional processing and sensory–motor integration
TLDR
It is shown that neuronal synchronization predicts which sensory input is processed and how efficient it is transmitted to postsynaptic target neurons during sensory-motor integration and the planning and selection of specific movements can be predicted by the strength of coherent oscillations among local neuronal groups in frontal and parietal cortex. Expand
The principle of coherence in multi-level brain information processing.
TLDR
It is suggested that long-range coherent dynamics within the intra- and extracellular filamentous matrices could establish dynamic ordered states, capable of rapid modulations of functional neuronal connectivity via their interactions with neuronal membranes and synapses. Expand
Neuronal Oscillations, Coherence, and Consciousness
Evidence accumulated in the past two decades strongly suggests that synchronization of oscillatory neural signals is one of the key mechanisms for integrating and selecting information in distributedExpand
Snapshots of the Brain in Action: Local Circuit Operations through the Lens of γ Oscillations
  • J. Cardin
  • Psychology, Medicine
  • The Journal of Neuroscience
  • 2016
TLDR
Although these dynamics present a challenge to interpreting the functional role of γ oscillations, these patterns of activity emerge from synaptic interactions among excitatory and inhibitory neurons and thus provide important insight into local circuit operations. Expand
Brain rhythms and neural syntax: implications for efficient coding of cognitive content and neuropsychiatric disease.
TLDR
Findings from animal studies showing that most forms of brain rhythms are inhibition-based are reviewed, producing rhythmic volleys of inhibitory inputs to principal cell populations, thereby providing alternating temporal windows of relatively reduced and enhanced excitability in neuronal networks. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 67 REFERENCES
Neuronal Coherence as a Mechanism of Effective Corticospinal Interaction
TLDR
Modulations of subjects' readiness to respond in a simple reaction-time task were closely correlated with the strength of gamma-band coherence between motor cortex and spinal cord neurons, suggesting that coherence may contribute to an effective corticospinal interaction and shortened reaction times. Expand
Dynamic predictions: Oscillations and synchrony in top–down processing
TLDR
It is argued that coherence among subthreshold membrane potential fluctuations could be exploited to express selective functional relationships during states of expectancy or attention, and these dynamic patterns could allow the grouping and selection of distributed neuronal responses for further processing. Expand
Correlated neuronal activity and the flow of neural information
TLDR
Experimental and theoretical results indicate that correlated fluctuations might be important for cortical processes, such as attention, that control the flow of information in the brain. Expand
Gamma frequency oscillations gate temporally coded afferent inputs in the rat hippocampal slice
TLDR
It is demonstrated that gamma oscillations also act as a powerfully selective gate for trains of afferent inputs to an oscillating area, based on the 'precise timing of inputs' as opposed to their absolute magnitude or frequency. Expand
Phase Synchrony among Neuronal Oscillations in the Human Cortex
TLDR
It is demonstrated, using magnetoencephalography, that robust cross-frequency phase synchrony is present in the human cortex among oscillations with frequencies from 3 to 80 Hz and that it is modulated by cognitive task demands. Expand
Visuomotor integration is associated with zero time-lag synchronization among cortical areas
TLDR
When cats responded to a sudden change of a visual pattern, neuronal activity in cortical areas exhibited synchrony without time lags; this synchrony was particularly strong between areas subserving related functions. Expand
The neural code between neocortical pyramidal neurons depends on neurotransmitter release probability.
  • M. Tsodyks, H. Markram
  • Biology, Materials Science
  • Proceedings of the National Academy of Sciences of the United States of America
  • 1997
TLDR
By setting the rate of synaptic depression, release probability is an important factor in determining the neural code, suggesting that the relative contribution of rate and temporal signals varies along a continuum. Expand
Synchronization of oscillatory neuronal responses between striate and extrastriate visual cortical areas of the cat.
TLDR
It is demonstrated that unit responses recorded from the posteromedial lateral suprasylvian area, a visual association area specialized for the analysis of motion, also exhibit an oscillatory temporal structure, supporting the hypothesis that synchronous neuronal oscillations may serve to establish relationships between features processed in different areas of visual cortex. Expand
Modulation of long-range neural synchrony reflects temporal limitations of visual attention in humans.
  • J. Gross, F. Schmitz, +4 authors A. Schnitzler
  • Computer Science, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 2004
TLDR
This work hypothesized that the network communicates by means of neural phase synchronization, and used magnetoencephalography to study transient long-range interarea phase coupling in a well studied attentionally taxing dual-target task (attentional blink). Expand
Oscillatory Synchrony between Human Extrastriate Areas during Visual Short-Term Memory Maintenance
TLDR
It is shown in human intracranial recordings that limited regions of extrastriate visual areas, separated by several centimeters, become synchronized in an oscillatory mode during the rehearsal of an object in visual short-term memory. Expand
...
1
2
3
4
5
...