Repetitive Current

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This stimulus can only be applied to neurons in the neural network editor. It injects a current into the selected neuron that alternates between an on and off state for a specified amount of time. The user specifies a duration and current for the on and off cycles, and the current alternates between those two values for the duration of the stimulus. Figure 1 shows an example of this stimulus when the cycle on and off durations are set to 1 second, cycle on current is 10 na, cycle off current is 0 na, start time is 1 s, and end time is 9 seconds. The 10 na current is applied for 1 second and then goes off for 1 second, and this is repeated.

Figure 1. Repetitive current stimulus.

Tonic Current Properties

Always Active
If this property is true then the stimulus is always active and the start and end times are ignored. If it is false then the stimulus is only applied between the start and end times.
Default value: False
Acceptable Values: True/False.

Cycle Off Current
The current that will be injected into the neuron during the cycle off period.
Default value: 0 nA
Acceptable range: Any value.

Cycle Off Duration
The duration of the cycle off period.
Default value: 0 s
Acceptable range: Any value less than duration of the stimulus.

Cycle On Current
The current that will be injected into the neuron during the cycle on period. The cycle on period is applied first by default.
Default value: 10 nA
Acceptable range: Any value.

Cycle On Duration
The duration of the cycle on period. The cycle on period is applied first by default.
Default value: 20 ms
Acceptable range: Any value less than duration of the stimulus.

Enabled
Determines if this stimulus is applied or not. If this is false then the stimulus is ignored. If it is true then it is applied.
Default value: True
Acceptable Values: True/False.

End Time
This is the time when the stimulus is stopped.
Default value: 5 s
Acceptable Values: Any value greater than the Start Time.

Name
The name of the stimulus.
Default value: Stimulus_?
Acceptable Values: Any string.

Node
A read-only property that tells which neuron the current will be injected into.

Organism
A read-only property that tells which organism the selected neuron is contained within.

Start Time
This is the time when the stimulus will start.
Default value: 0 s
Acceptable Values: Any value less than the End Time and greater than or equal 0.