Page 221 - Artificial Intelligence in the Age of Neural Networks and Brain Computing

212 CHAPTER 10 Computers Versus Brains: Game Is Over or More to Come?

FIGURE 10.4
Metastability of brain dynamics manifested in electrocorticograms (ECoGs); top plot:
filtered ECoG signals from an array of 8 8 electrodes in rabbit sensory cortex; beating
patterns of relatively high synchrony have duration of 150e200 ms, interrupted by brief
periods (10e20 ms) of desynchronization marked by (blue [dark gray in print version]
bars); bottom plot shows the complementary aspects of microscopic (0.1 mm) and
macroscopic (50 mm) neural processes in rabbit brain, interacting through phase cones
emerging at the mesoscopic scales (6e8 mm).
Adapted from R. Kozma, W.J. Freeman, Cognitive Phase Transitions in the Cerebral CortexdEnhancing the
Neuron Doctrine by Modeling Neural Fields, Springer, New York, (2016).