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Human Brain and Behavior Laboratory. EEG Coordination Dynamics Neuromarkers of Social Coordination E. Tognoli. Center for Complex Systems and Brain Sciences. tognoli@ccs.fau.edu http://www.ccs.fau.edu/hbbl.html . EEG & Coordination Dynamics. Banerjee et al., in progress. ?.
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Human Brain and Behavior Laboratory EEG Coordination DynamicsNeuromarkers of Social CoordinationE. Tognoli Center for Complex Systems and Brain Sciences tognoli@ccs.fau.eduhttp://www.ccs.fau.edu/hbbl.html
EEG & Coordination Dynamics Banerjee et al., in progress ?
Time(s) in EEG * * * * * ** * * -µV 700 ms “real”- time “recursive”- time
Transitions and stability Behavior: “real”- time -µV 700 ms EEG: “recursive”- time
Analyze EEG in “real” time? Entrained responses Spontaneous oscillations Evoked responses Entrained (patterned) Dynamics Steady-states
t=20-40s t=0-20s t=40-60s
Space (scalp surface): 2D Frequency: 1D Amplitude: 1D Fs: 1000 Hz Samples: 16384 Spectral Resolution: 0.06Hz Spatio-spectral patterns 16.384 sec
Intrinsic Behavior Coordination Behavior Intrinsic motor preparation Mirror neuron activity f2↑ f1↑ M1 M1 f1 SELF f2 OTHER
fERS aERD m ERD + = trouble
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 f dynamics • Gating the influence of self and other on ongoing behavior