List of Stimuli¶
This section provides an overview of the various stimuli available for use within BlueCelluLab. We showcase how each stimulus can be generated and visualized.
Setting Up¶
The stimuli visualization is controlled through a StimulusFactory object, which is configured with a time step (dt) parameter. This allows for precise temporal resolution in stimuli generation.
from bluecellulab.stimulus import StimulusFactory
stim_factory = StimulusFactory(dt=0.1)
Stimulus Types¶
Step Stimulus¶
Definition: The step stimulus represents a sudden change in value at a specified point in time, maintaining this new value until the end of the stimulus period.
step = stim_factory.step(pre_delay=20, duration=80, post_delay=20, amplitude=70)
step.plot()
Multiple step stimuli with different amplitudes.
step1 = stim_factory.step(pre_delay=50, duration=100, post_delay=50, amplitude=60)
step2 = stim_factory.step(pre_delay=50, duration=100, post_delay=50, amplitude=80)
step3 = stim_factory.step(pre_delay=50, duration=100, post_delay=50, amplitude=100)
step4 = stim_factory.step(pre_delay=50, duration=100, post_delay=50, amplitude=120)
# Create a figure and an Axes object
fig, ax = plt.subplots()
# Plot the step functions on the same axes
step1.plot(ax=ax, color='red')
step2.plot(ax=ax, color='green')
step3.plot(ax=ax, color='blue')
step4.plot(ax=ax, color='orange')
plt.show()
Ramp Stimulus¶
Definition: A ramp stimulus gradually changes from an initial value to a final value over a defined period. This allows for the examination of systems’ responses to gradual input changes.
ramp = stim_factory.ramp(pre_delay=20, duration=160, post_delay=70, amplitude=0.5)
ramp.plot()
APWaveform¶
Definition: The action potential waveform is a step stimulus with a defined amplitude and duration.
ap_waveform = stim_factory.ap_waveform(threshold_current=0.5)
ap_waveform.plot()
IDRest¶
Definition: The IDRest stimulus is a step stimulus with a defined amplitude and duration.
id_rest = stim_factory.idrest(threshold_current=0.5)
id_rest.plot()
IV¶
Definition: The IV stimulus is a step stimulus with a defined amplitude (negative value) and duration.
iv = stim_factory.iv(threshold_current=0.5)
iv.plot()
FirePattern¶
Definition: The fire pattern stimulus is a step stimulus with a defined amplitude and duration.
fire_pattern = stim_factory.fire_pattern(threshold_current=0.5)
fire_pattern.plot()
PosCheops¶
Definition: The PosCheops stimulus is a sequence of increasing and decreasing ramps with a positive amplitude.
pos_cheops = stim_factory.pos_cheops(threshold_current=0.5)
pos_cheops.plot()
NegCheops¶
Definition: The NegCheops stimulus is a sequence of increasing and decreasing ramps with a negative amplitude.
neg_cheops = stim_factory.neg_cheops(threshold_current=0.5)
neg_cheops.plot()
