Fig 1.
Schematic diagram of the modified TCT model presented in this work.
The synaptic structures of the thalamic and the cortical module are based on Ref. [40] and Refs. [33, 41], respectively. Blue lines with arrow heads and round heads denote the excitatory and inhibitory synaptic projections existing in the original TCT model, respectively. Red lines with arrow heads and round heads indicate the excitatory and inhibitory synaptic projections newly introduced in the modified TCT model, respectively.
Table 1.
Parameters of synaptic connection between different neuron populations in the model.
Table 2.
Values of other parameters in this model that sourced from works [41, 43].
Fig 2.
The peak power density and the corresponding power spectral density for varying values of Cfte.
(A) The peak power density within the alpha band of the thalamic output. (B) The corresponding power spectral density for different connectivity parameters such as Cfte = 30, 32, 34, 36.
Fig 3.
Bifurcation diagram of the thalamic module output’s extrema for varying values of connectivity parameter Cfte.
Red and blue points represent the local maximum and minimum of the thalamic module output, respectively.
Fig 4.
Phase diagrams (top panels) and the corresponding time series diagrams (bottom panels) of the thalamic module.
(A) Cfte = 30, (B) Cfte = 35, (C) Cfte = 35.1, (D) Cfte = 40.
Fig 5.
Dependence of the peak power density within alpha band on synaptic connectivity Cfte for different parameters of Clte.
Here, Clte = 35, 40, 45, 50.
Fig 6.
The peak power density and the corresponding power spectral density for varying values of Clfi.
(A) The peak power density within the alpha band of the thalamic module. (B) The corresponding power spectral density for different values of Clfi such as Clfi = 13.25, 13.3, 13.35, 13.4.
Fig 7.
Bifurcation analysis of the thalamic module’s extrema for varying synaptic connection Clfi.
Red and blue points indicate the local maximum and minimum of the thalamic output, respectively.
Fig 8.
Phase plots (top panels) and the corresponding time series plots (bottom panels) of the thalamic module when Clfi takes different values.
(A) Clfi = 10, (B) Clfi = 13.3, (C) Clfi = 13.5, (D) Clfi = 20.
Fig 9.
The peak power density and the corresponding power spectral density for varying values of Cpxe.
(A) The peak power density within the alpha band of the thalamic output. (B) The corresponding power spectral density for different connectivity parameters such as Cpxe = 102, 104, 106, 108.
Fig 10.
Bifurcation analysis of the thalamic module’s extrema for varying synaptic connection Cpxe.
Red and blue points indicate the local maximum and minimum of the thalamic output, respectively.
Fig 11.
Phase plots (top panels) and the corresponding time series plots (bottom panels) of the thalamic module when Cpxe takes different values.
(A) Cpxe = 98, (B) Cpxe = 101.9, (C) Cpxe = 102.5, (D) Cpxe = 110.
Fig 12.
The peak power density and the corresponding power spectral density for varying values of Ctii.
(A) The peak power density within the alpha band of the thalamic output. (B) The corresponding power spectral density for different connectivity parameters such as Ctii = 6.95, 7.45, 7.95, 8.45.
Fig 13.
Bifurcation analysis of the thalamic module’s extrema for varying synaptic connection Ctii.
Red and blue points indicate the local maximum and minimum of the thalamic output, respectively.
Fig 14.
Phase plots (top panels) and the corresponding time series plots (bottom panels) of the thalamic module when Ctii takes different values.
(A) Ctii = 6.95, (B) Ctii = 7.95, (C) Ctii = 8.45, (D) Ctii = 5.45.