opensourcebrain/HodgkinHuxleyTutorial

1<Lems xmlns="http://www.neuroml.org/lems/0.7.4"2      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"3      xsi:schemaLocation="http://www.neuroml.org/lems/0.7.4 ../../LEMS/Schemas/LEMS/LEMS_v0.7.4.xsd"4      description="New voltage clamp">5 6 7    <ComponentType name="voltageClamp2" extends="baseVoltageDepPointCurrent"8                   description="Voltage clamp. Applies a variable current _i to try to keep parent at _targetVoltage. ">9 10        <Parameter name="delay" dimension="time" description="Delay before switching from conditioningVoltage to testingVoltage."/>11        <Parameter name="duration" dimension="time" description="Duration to hold at testingVoltage."/>12        <Parameter name="conditioningVoltage" dimension="voltage" description="Target voltage before time delay"/>13        <Parameter name="testingVoltage" dimension="voltage" description="Target voltage between times delay and delay + duration"/>14        <Parameter name="returnVoltage" dimension="voltage" description="Target voltage after time duration"/>15        16        <!-- seriesResistance renamed to simpleSeriesResistance & factor of 1e-5 removed from calculation of current. Still being tested... -->17        <Parameter name="simpleSeriesResistance" dimension="resistance" description="Current will be calculated by the difference in voltage between the target and parent, divided by this value"/>18 19        <!--TODO: remove! Only required as EventConnection is used in explicitInput to20        connect inputs to cells. Events aren't passed! ... -->21        <EventPort name="in" direction="in" description="Note this is not used here. Will be removed in future"/>22 23        <Dynamics>24 25            <StateVariable name="i" exposure="i" dimension="current"/>26 27            <OnEvent port="in"><!--TODO: remove, see above...28            <StateAssignment variable="i" value="0"/>-->29            </OnEvent>30 31            <OnCondition test="t .lt. delay">32                <StateAssignment variable="i" value="(conditioningVoltage - v) / simpleSeriesResistance"/>33            </OnCondition>34 35            <OnCondition test="t .geq. delay">36                <StateAssignment variable="i" value="(testingVoltage - v) / simpleSeriesResistance"/>37            </OnCondition>38 39            <OnCondition test="t .gt. duration + delay">40                <StateAssignment variable="i" value="(returnVoltage - v) / simpleSeriesResistance"/>41            </OnCondition>42 43        </Dynamics>44 45    </ComponentType>46    47    48    <voltageClamp2 id="vClamp" delay="10ms" duration="30ms"49              conditioningVoltage="-63.77mV" 50              testingVoltage="10mV" 51              returnVoltage="-63.77mV" 52              simpleSeriesResistance="1e4ohm"/>53    54</Lems>55