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. 2016 Feb 3;115(4):2199–2213. doi: 10.1152/jn.00812.2015

Table 1.

Thalamocortical connectivity

Delay
Source Layer Cell Type Target Layer Cell Type Transmitter Style Pmax (height) Radius or Size Strength Mean SD
Optic nerve Exc LGN Exc, Inh AMPA Gaussian 0.75 1 10 2 1
Thalamic
    LGN Exc NRT Exc AMPA Gaussian 1 2 2 2 0.25
    LGN Inh LGN Exc, Inh GABAA Gaussian 1 2 2 1 0.25
    NRT Inh NRT Inh GABAA Gaussian 0.5 12 2 1 0.25
    NRT Inh LGN Exc, Inh GABAA Gaussian 0.15 12 2 2 0.25
    NRT Inh LGN Exc, Inh GABAB Gaussian 0.05 12 2 2 0.25
    M cells Exc M cells Exc, Inh AMPA, NMDA Rectangular 0.03 10 × 10 1 2 0.25
    M cells Inh M cells Exc, Inh GABAA Gaussian 0.3 2 2.9 2 0.25
Thalamocortical
    LGN Exc IV, Infra Inh AMPA Gaussian 0.1 5 3.5 3 0.25
    LGN Exc IV, Infra Exc AMPA Rectangular 0.5 8 × 1 3.5 3 0.25
    M cells Exc Supra, Infra Exc, Inh AMPA Gaussian 0.1 12 0.3 7 0.2
Corticothalamic
    Infra Exc NRT Inh AMPA Gaussian 0.5 5 0.5 8 0.5
    Infra Exc LGN Exc, Inh AMPA Gaussian 0.25 7 0.33 8 0.5
    Infra Exc M cells Exc, Inh AMPA Gaussian 0.1 12 0.62 5 1
V1 intraareal
    Supra Exc Supra Exc AMPA Rectangular 0.064 10 × 10 1 2 0.25
    Supra Exc Supra Exc NMDA Rectangular 0.064 10 × 10 0.75 2 0.25
    Supra Exc Supra Inh AMPA Gaussian 0.05 12 0.6 2 0.25
    Supra Inh Supra Exc, Inh GABAA Gaussian 0.025 7 0.5 2 0.25
    Supra Inh Supra Exc, Inh GABAB Gaussian 0.5 2 0.5 2 0.25
    IV Exc IV Exc AMPA Rectangular 0.0384 10 × 10 1 2 0.25
    IV Exc IV Inh AMPA Gaussian 0.05 12 0.6 2 0.25
    IV Inh IV Exc, Inh GABAA Gaussian 0.025 7 0.5 2 0.25
    Infra Exc Infra Exc AMPA Rectangular 0.0384 10 × 10 1 2 0.25
    Infra Exc Infra Inh AMPA Gaussian 0.05 12 0.6 2 0.25
    Infra Exc Infra Exc, Inh GABAA Gaussian 0.025 7 0.5 2 0.25
V1 interareal
    Supra Exc Infra Exc, Inh AMPA Gaussian 1 2 1 2 0.25
    Supra Exc Infra Exc NMDA Gaussian 1 2 1 2 0.25
    Supra Inh IV, Infra Exc, Inh GABAB Gaussian 0.5 2 0.5 2 0.25
    IV Exc Supra Exc, Inh AMPA Gaussian 1 2 2.21 2 0.25
    Infra Exc Supra Exc, Inh AMPA Gaussian 1 2 2.21 2 0.25
    Infra Exc IV Exc, Inh AMPA Gaussian 1 2 2.21 2 0.25

Parameters for the connectivity profiles used to construct the thalamocortical network. Connection profiles are listed per layer and neuron type for the large-scale model. Gaussian connections are selected according to a Gaussian distribution (σ = 7.5) with a peak of Pmax. Rectangular connections are selected by the maximum probability Pmax within a rectangular area. The radius of the Gaussian connections and size (area) of rectangular connections are measured in no. of neurons (so 10 × 10 means a probability distribution over a square of 10 neurons). Strength (expressed in no. of simultaneous PSPs per connection) is a modifier of the synaptic currents defined in materials and methods. The mean delay of the spike impulse from the source cell to the target cells and its SD are measured in ms.

Exc, excitatory; Inh, inhibitory; Infra, infragranular; Supra, supragranular.