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Common Oscillator Models

Code repository for all of the methods described and the analysis performed in Switching Functional Network Models of Oscillatory Brain Dynamics,The 56th Asilomar Conference on Signals, Systems & Computer, IEEE, 2022.

The detailed explantion of the code is at the top of each Matlab script file. Below is a brief description of all scripts in this repo.

  • core_functions

    • skf.m -- switching Kalman filter
    • smoother.m -- switching RTS smoother
    • em_B.m -- EM on B matrices

  • single_rhythm_model

    • single_rhythm_model.m -- propofol example of implementing the common oscillator model with a single rhythm (alpha)

  • multiple_rhythms_model

    • multi_rhythms_model.m -- propofol example of implementing the common oscillator model with multiple rhythms (alpha + slow wave)
    • std_kf.m -- standard Kalman filter (used for EM on B during awake & unconscious periods)
    • std_smth.m -- standard RTS smoother (used for EM on B during awake & unconscious periods)
    • kf_em_B.m -- EM on B matrices without switching components

  • plotting

    • plt_B_single.m -- plot the estimated B matrices for the single rhythm model
    • plt_B_multi.m -- plot the estimated B matrices for the multiple rhythms model
    • plt_dosage_bhvr_SW.m -- plot the propofol dosage, behavioral responses, estimated switching states
    • helper_functions
      • plt_funcs.m -- create the scalp layout of the electrodes
      • adjust_sw.m -- adjust the estimated switching states for removed segments