def JitteredPulses(self,
code=1,
width=0.010,
port=0,
pause_between=3.0,
jitter_between=3.0,
sync_style="parallel"):
"""Send pulses separated by a jittered wait.
The typical use case for this subroutine is to send a random train
of pulses during an EEG experiment to allow for subsequent
synchronization of the EEG data with the behavioral data. This
would be accomplished by calling JitteredPulses within a Meanwhile
as the next state following the instantiation of the Experiment:
exp = Experiment()
with Meanwhile():
JitteredPulses()
"""
# loop indefinitely
with Loop():
# send a pulse
pulse = Pulse(code=code, port=port, width=width, sync_style=sync_style)
Done(pulse)
# do a jittered wait
Wait(duration=pause_between, jitter=jitter_between)
# Log the pulse to a pulse-specific log
Log(name='pulse',
pulse_on=pulse.pulse_on,
pulse_code=pulse.code,
pulse_off=pulse.pulse_off,
pulse_port=pulse.port,
pulse_width=pulse.width)
exp = Experiment()
with Meanwhile():
KeyRecord(name="record_all_key_presses")
Debug(name='Press T+G+D or SHIFT+Q+R')
Wait(until=((Key("T") & Key("G") & Key("D"))
| (Key("SHIFT") & Key("Q") & Key("R"))))
Debug(name='Key Press Test')
exp.last_pressed = ''
with Loop(conditional=(exp.last_pressed != 'K')):
kp = KeyPress(keys=['J', 'K'], correct_resp='K')
Debug(pressed=kp.pressed, rt=kp.rt, correct=kp.correct)
exp.last_pressed = kp.pressed
Log(pressed=kp.pressed, rt=kp.rt)
KeyRecord()
with UntilDone():
kp = KeyPress(keys=['J', 'K'], correct_resp='K')
Debug(pressed=kp.pressed, rt=kp.rt, correct=kp.correct)
Wait(1.0)
kp = KeyPress()
Debug(pressed=kp.pressed, rt=kp.rt, correct=kp.correct)
Wait(1.0)
kp = KeyPress(duration=2.0)
Debug(pressed=kp.pressed, rt=kp.rt, correct=kp.correct)
Wait(1.0)
pulse_off=pulse.pulse_off,
pulse_port=pulse.port,
pulse_width=pulse.width)
if __name__ == '__main__':
from experiment import Experiment
from state import Meanwhile, Debug
# set up default experiment
exp = Experiment()
# test running pulses whilst the rest of the experiment is going
with Meanwhile():
with Loop():
pulse = Pulse(code='S1')
Wait(duration=1.0, jitter=1.0)
Log(name='pulse',
pulse_on=pulse.pulse_on,
pulse_code=pulse.code,
pulse_off=pulse.pulse_off)
# First wait for a bit and send some pulses
Wait(10)
# print something
Debug(width=exp.screen.width, height=exp.screen.height)
# run the exp
exp.run(trace=False)