eeg coordination dynamics neuromarkers of social coordination e. tognoli

Human Brain and Behavior Human Brain and Behavior LaboratoryLaboratoryCenter for Complex Center for Complex

Systems Systems and Brain Sciencesand Brain Sciences

tognoli@ccs.fau.edutognoli@ccs.fau.edu

http://www.ccs.fau.edu/hbbl.html http://www.ccs.fau.edu/hbbl.html

EEG Coordination DynamicsEEG Coordination Dynamics

Neuromarkers of Social Neuromarkers of Social CoordinationCoordination

E. TognoliE. Tognoli

?Banerjee et al., in progress

EEG & Coordination Dynamics

Time(s) in EEG

-µV

700 ms

* * * * * * * * *

““real”- timereal”- time

““recursive”- timerecursive”- time

Transitions and stability[…]

Transitions and stability

-µV

700 ms

Behavior: “real”- timeBehavior: “real”- time

EEG: “recursive”- timeEEG: “recursive”- time

Transitions and stability

Analyze EEG in “real” time?

Analyze EEG in “real” time?

Analyze EEG in “real” time?

Steady-states

Entrained (patterned) Dynamics

Evoked responses

Spontaneous oscillations

Entrained responses

Social CoordinationSocial Coordination

t=20-40st=20-40s t=40-60st=40-60st=0-20st=0-20s

Collective behavior

Spatio-spectral patterns

16.384 sec

Fs: 1000 HzSamples: 16384

Spectral Resolution: 0.06Hz

Space (scalp surface): 2D Frequency: 1DAmplitude: 1D

1↑2↑

Intrinsic Behavior Coordination Behavior

M1M1

Intrinsic Intrinsic motor motor

preparationpreparation

M1M1

Mirror neuron Mirror neuron activityactivity

1

SELF

2

OTHER

+

=

ERS

ERD

ERD

trouble

Coupling between brains

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

Study coordinated with: