Experiment Paradigm Modifications

[omerday]

• [x] there used to be an ITI (blank screen) between heat rating and next trial, and now it’s no longer there. let’s refine this: a blank screen for random[3-4s], followed by black fixation cross for random[3-5s]. and then when the cross is done, the next trial starts.

• [x] Change the events so that the blank screen is the last event of the previous trial, and the cross is the first of the next trial

• [x] Change Blank and Fixation screens to 4-6s randomization

• [x] Reduce to 3 levels of heat

• [x] Customize instructions

• [x] Change to 6 blocks, 6 trials each (2 for every color)

• [x] Make sure the Pain Rating event is sent right at the beginning of the rating

• [x] make the display of each square about 0.5-1s longer before the square goes away

• [x] let’s add 1s between offset of full square and rating scale onset

[omerday]

Added the logic and implemented like so:

def iti():
    blank_wait = random.uniform(3, 4)
    cross_wait = random.uniform(3, 5)
    win.flip()
    blank_start = ts.time()
    while ts.time() < blank_start + blank_wait:
        for ev in event.getKeys():
            if ev.key in ["esc", "escape", "q"]:
                win.close()
                core.quit()

    img = visual.ImageStim(win, image="./img/PlusOnly.jpg", pos=(0, 0), size=(2,2), units="norm")
    cross_start = ts.time()
    img.draw()
    win.flip()
    while ts.time() < cross_start + cross_wait:
        for ev in event.getKeys():
            if ev.key in ["esc", "escape", "q"]:
                win.close()
                core.quit()

    del img

Need to modify it to fit the new events

[omerday]

@rany-abend you can follow here

[omerday]

@rany-abend all done with God's help Will review tomorrow morning in the lab before merging

[omerday]

Additional modifications:

• [x] Make the timing between heat and rating 1sec longer
• [x] Make the blank screen after rating 3 sec longer
• [x] Change the randomization of square presentation to 2-2.5