Vortices in brain waves
| dc.creator | Freeman, Walter J. | |
| dc.creator | Vitiello, Giuseppe | |
| dc.date | 2008-02-26 | |
| dc.date.accessioned | 2026-07-07T09:25:23Z | |
| dc.date.available | 2026-07-07T09:25:23Z | |
| dc.description | Interactions by mutual excitation in neural populations in human and animal brains create a mesoscopic order parameter that is recorded in brain waves (electroencephalogram, EEG). Spatially and spectrally distributed oscillations are imposed on the background activity by inhibitory feedback in the gamma range (30-80 Hz). Beats recur at theta rates (3-7 Hz), at which the order parameter transiently approaches zero and microscopic activity becomes disordered. After these null spikes, the order parameter resurges and initiates a frame bearing a mesoscopic spatial pattern of gamma amplitude modulation that governs the microscopic activity, and that is correlated with behavior. The brain waves also reveal a spatial pattern of phase modulation in the form of a cone. Using the formalism of the dissipative many-body model of brain, we describe the null spikes and the accompanying phase cones as vortices. | |
| dc.identifier | https://arxiv.org/abs/0802.3854 | |
| dc.identifier | http://arxiv.org/abs/0802.3854 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/156387 | |
| dc.subject | Neurons and Cognition | |
| dc.subject | Other Condensed Matter | |
| dc.subject | Other Quantitative Biology | |
| dc.title | Vortices in brain waves | |
| dc.type | text |