scholarly journals Endogenous human brain dynamics recover slowly following cognitive effort

Author(s):  
John Suckling ◽  
Anna Barnes ◽  
Ed Bullmore
PLoS ONE ◽  
2009 ◽  
Vol 4 (8) ◽  
pp. e6626 ◽  
Author(s):  
Anna Barnes ◽  
Edward T. Bullmore ◽  
John Suckling

NeuroImage ◽  
2021 ◽  
pp. 118551
Author(s):  
J.A. Galadí ◽  
S. Silva Pereira ◽  
Y. Sanz Perl ◽  
M.L. Kringelbach ◽  
I. Gayte ◽  
...  

2017 ◽  
pp. 3-12
Author(s):  
Riitta Hari ◽  
Aina Puce

Neuronal communication in the brain is associated with minute electrical currents that give rise to both electrical potentials on the scalp (measurable by means of electroencephalography [EEG]) and magnetic fields outside the head (measurable by magnetoencephalography [MEG]). Both MEG and EEG are noninvasive neurophysiological methods used to study brain dynamics, that is temporal changes in the activation patterns, and sequences in signal progression. Differences between MEG and EEG mainly reflect differences in the spread of electric and magnetic fields generated by the same electric currents in the human brain. This chapter provides an overall description of the main principles of MEG and EEG and provides background for the following chapters in this and subsequent sections.


2017 ◽  
Vol 34 (13) ◽  
pp. 2154-2166 ◽  
Author(s):  
Shailesh Ganpule ◽  
Nitin P. Daphalapurkar ◽  
Kaliat T. Ramesh ◽  
Andrew K. Knutsen ◽  
Dzung L. Pham ◽  
...  

2013 ◽  
Vol 4 (3) ◽  
pp. 153-163 ◽  
Author(s):  
Jeff Alstott

Abstract Whole brain emulation (WBE) is the possible replication of human brain dynamics that reproduces human behavior. If created, WBE would have significant impact on human society, and forecasts frequently place WBE as arriving within a century. However, WBE would be a complex technology with a complex network of prerequisite technologies. Most forecasts only consider a fraction of this technology network. The unconsidered portions of the network may contain bottlenecks, which are slowly-developing technologies that would impede the development of WBE. Here I describe how bottlenecks in the network can be non-obvious, and the merits of identifying them early. I show that bottlenecks may be predicted even with noisy forecasts. Accurate forecasts of WBE development must incorporate potential bottlenecks, which can be found using detailed descriptions of the WBE technology network. Bottlenecks identification can also increase the impact of WBE researchers by directing effort to those technologies that will immediately affect the timeline of WBE development


Author(s):  
Maryam Banaei ◽  
Javad Hatami ◽  
Abbas Yazdanfar ◽  
Klaus Gramann

2019 ◽  
Author(s):  
Keiichi Kitajo ◽  
Takumi Sase ◽  
Yoko Mizuno ◽  
Hiromichi Suetani

AbstractIt is an open question as to whether macroscopic human brain responses to repeatedly presented external inputs show consistent patterns across trials. We here provide experimental evidence that human brain responses to noisy time-varying visual inputs, as measured by scalp electroencephalography (EEG), show a signature of consistency. The results indicate that the EEG-recorded responses are robust against fluctuating ongoing activity, and that they respond to visual stimuli in a repeatable manner. This consistency presumably mediates robust information processing in the brain. Moreover, the EEG response waveforms were discriminable between individuals, and were invariant over a number of days within individuals. We reveal that time-varying noisy visual inputs can harness macroscopic brain dynamics and can manifest hidden individual variations.


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