{ "FN": { "format": "ModECI MDF v0.4", "metadata": { "preferred_duration": 0.1, "preferred_dt": 0.00005 }, "graphs": { "FN": { "notes": "FitzHugh Nagumo cell model - originally specified in NeuroML/LEMS", "nodes": { "FNpop": { "metadata": { "color": "0.2 0.2 0.2", "radius": 3, "region": "region1" }, "parameters": { "initial_w": { "value": [ 0.0 ] }, "initial_v": { "value": [ -1.0 ] }, "a_v": { "value": [ -0.3333333333333333 ] }, "b_v": { "value": [ 0.0 ] }, "c_v": { "value": [ 1.0 ] }, "d_v": { "value": [ 1.0 ] }, "e_v": { "value": [ -1.0 ] }, "f_v": { "value": [ 1.0 ] }, "time_constant_v": { "value": [ 1.0 ] }, "a_w": { "value": [ 1.0 ] }, "b_w": { "value": [ -0.8 ] }, "c_w": { "value": [ 0.7 ] }, "time_constant_w": { "value": [ 12.5 ] }, "threshold_exc": { "value": [ -1.0 ] }, "mode": { "value": [ 1.0 ] }, "uncorrelated_activity": { "value": [ 0.0 ] }, "Iext": { "value": [ 0.0 ] }, "MSEC": { "value": [ 0.001 ] }, "spike": { "value": [ 0 ] }, "V": { "default_initial_value": "initial_v", "time_derivative": "(a_v*V*V*V + (1+threshold_exc)*b_v*V*V + (-1*threshold_exc)*c_v*V + d_v + e_v*W + f_v*Iext + INPUT) / (time_constant_v*MSEC)" }, "W": { "default_initial_value": "initial_w", "time_derivative": "(mode*a_w*V + b_w*W + c_w + (1-mode)*uncorrelated_activity) / (time_constant_w*MSEC)" } }, "input_ports": { "INPUT": {} }, "output_ports": { "spike": { "value": "spike" }, "V": { "value": "V" }, "W": { "value": "W" } }, "notes": "Cell: [Cell(notes=None, id='fn', parameters={'initial_w': 'initial_w', 'initial_v': 'initial_v', 'a_v': 'a_v', 'b_v': 'b_v', 'c_v': 'c_v', 'd_v': 'd_v', 'e_v': 'e_v', 'f_v': 'f_v', 'time_constant_v': 'time_constant_v', 'a_w': 'a_w', 'b_w': 'b_w', 'c_w': 'c_w', 'time_constant_w': 'time_constant_w', 'threshold': 'threshold', 'mode': 'mode', 'uncorrelated_activity': 'uncorrelated_activity', 'Iext': 'Iext'}, neuroml2_source_file=None, lems_source_file='FN_Definitions.xml', neuroml2_cell=None, pynn_cell=None, arbor_cell=None, bindsnet_node=None)] is defined in FN_Definitions.xml and in Lems is: Component, id: fn, type: fnCell,\n parameters: {'initial_w': '0.0', 'initial_v': '-1', 'a_v': '-0.3333333333333333', 'b_v': '0.0', 'c_v': '1.0', 'd_v': '1', 'e_v': '-1.0', 'f_v': '1.0', 'time_constant_v': '1.0', 'a_w': '1.0', 'b_w': '-0.8', 'c_w': '0.7', 'time_constant_w': '12.5', 'threshold_exc': '-1.0', 'mode': '1.0', 'uncorrelated_activity': '0.0', 'Iext': '0'}\n parent: None\n" } }, "edges": {} } } } }