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




                         all other nodes of the lattice. Note that in mean field models, the actual lattice
                         geometry becomes irrelevant due to the all-to-all interactions.
                            Mesoscopic, or intermediate-range, effects are of particular interest, when a node
                         interacts with some nodes beyond its immediate neighbors but not the whole lattice.
                         Intermediate-range coupling can produce peculiar resonance effects when oscillations
                         emerge in a narrow frequency band. Detailed analysis showed that mesoscopic
                         coupling produces the so-called chimera effect with the mixture of qualitatively
                         different behaviors identified, for example, in laser systems [46]. In chimera dy-
                         namics, the array of identical oscillators splits into two domains: one coherent with
                         phase synchrony, while the other lacks coherence and is desynchronized. Chimera
                         states in oscillatory systems of physics are named after mythological beasts with
                         multiple heads and identities joined in one body [47].
                            The coexistence of multiple dynamical states in a single system is an important
                         behavior that bears relevance to many fields of science, including biological and
                         artificial intelligence. In the case of the CML physical model, the bistable/multistable
                         dynamics became prominent in the case of mesoscopic coupling, which represents
                         an intermediate-range effect between the extremes of microscopic and macroscopic
                         connectivity in the physical space. Kelso’s complementary principle provides a
                         conceptual framework for such processes [38].Accordingly,let “w”denotethe
                         complementary relationship between two opposing aspects A and B of a specific
                         phenomenon. Examples of complementarity in various domains of science and
                         technology are given in Table 10.1, such as system hierarchy levels (low, high, and
                         medium), spatial scales (microscopic, macroscopic, and mesoscopic), predictability
                         and stochasticity [48], coordination dynamics (no coherence, coherence, and chimera
                         metastability), process evolution (diffusion, drift, and mixed), and artificial


                         Table 10.1 Manifestations of the Complementarity Principle
                          Complementary
                          Aspects          A               B                w
                          Hierarchy Level  Microscopic (low  Macroscopic (high  Mesoscopic
                                           level)          level)           (medium level)
                          Spatial Scale    Local (direct   Global (mean field)  Intermediate-range
                                           neighbor)
                          Predictability Over  Random      Deterministic    Partially predictable
                          Time             (unpredictable)  (predictable)
                          Coordination     Absence of      Dominance of     Chimera metastable
                          Dynamics         coherence       coherence        states
                          Process Evolution  Diffusive (no  Drift (directed)  Mixed (space/time)
                                           direction)
                          Physics          Entropy         Information      Knowledge
                          Artificial Intelligence  Bottom-up  Top-down       Integrated (brain-like)
                                           (emergence)     (inference)
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