| Issue |
EPL
Volume 80, Number 4, November 2007
|
|
|---|---|---|
| Article Number | 40009 | |
| Number of page(s) | 6 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/80/40009 | |
| Published online | 23 October 2007 | |
Noise-induced large-scale phase synchronization of human-brain activity associated with behavioural stochastic resonance
1
Laboratory for Dynamics of Emergent Intelligence, RIKEN Brain Science Institute 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
2
Educational Physiology Laboratory, Graduate School of Education, The University of Tokyo 7-3-1 Bunkyo-ku, Tokyo, 113-0033, Japan
3
Psychophysics and Cognitive Neuroscience Laboratory, Department of Psychology, The University of British Columbia - 2136 West Mall, Vancouver, British Columbia, V6T 1Z4, Canada
Received:
27
June
2007
Accepted:
24
September
2007
We demonstrate that both detection of weak visual signals to the right eye and phase synchronization of electro-encephalogram (EEG) signals from widely separated areas of the human brain are increased by addition of weak visual noise to the left eye. We found a close relationship between the resulting noise-induced changes in behavioural performance and the similarly resulting changes in phase synchronization between widely separated brain areas. These results imply that noise-induced large-scale neural synchronization may play a significant role in information transmission in the brain.
PACS: 05.40.Ca – Noise / 05.45.Xt – Synchronization; coupled oscillators / 87.19.Dd – Information processing in vision and hearing
© Europhysics Letters Association, 2007
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