1. Human Brain and Behavior Laboratory Center for Complex Systems and Brain Sciences tognoli@ccs.fau.edu http://www.ccs.fau.edu/hbbl.html EEG Coordination Dynamics Neuromarkers of Social Coordination E. Tognoli

2. ? Banerjee et al., in progress EEG & Coordination Dynamics

3. Time(s) in EEG -µV 700 ms * * * * * * * * * “real”- time “recursive”- time

4. Transitions and stability […]

5. Transitions and stability -µV 700 ms Behavior: “real”- time EEG: “recursive”- time

6. Transitions and stability

7. Analyze EEG in “real” time?

9. Steady-states Entrained (patterned) Dynamics Evoked responses Spontaneous oscillations Entrained responses

10. Social Coordination

11. t=20-40s t=40-60s t=0-20s

12. Collective behavior

14. Spatio-spectral patterns 16.384 sec Fs: 1000 Hz Samples: 16384 Spectral Resolution: 0.06Hz Space (scalp surface): 2D Frequency: 1D Amplitude: 1D

18. 1↑1↑ 2↑2↑ Intrinsic BehaviorCoordination Behavior M1 Intrinsicmotorpreparation M1 Mirror neuron activity  1 SELF  2 OTHER

19. + =  ERS  ERD  ERD trouble

21. Coupling between brains

22. Summary EEG coordination dynamics: –Develop “real” time analysis of brain~behavior –Employ robust entrained responses Social Coordination dynamics: –Phi complex: for coordinated~uncoordinated behaviors –Transitions/loss of stability: changes in  dynamics –Gating the influence of self and other on ongoing behavior

23. Study coordinated with:

24. Mu: wicket- shaped (en arceau) Topology: lateral parietal Topology: central/rolan dique Topology: posterior/occi pital Phi: triangular Alpha: sinusoidal

25. Only inphase stable Antiphase and inphase stable Relative coordination