Hello everyone
I am a student and would like to carry out an experiment for my bachelor thesis with the help of inquisit.
The subjects are asked to watch a video (ASMR) while using the keyboard to indicate whether they are relaxed, have a tingling sensation, or have no particular sensation (baseline). I would like to evaluate the latency periods afterwards (how long people were relaxed, etc.).
Everything works so far when I use a dummy video that is 2 seconds long. The video plays and records when the person presses buttons (A for baseline, G for relax, L for tingles). But it stops working when I use the ASMR video (almost 20 minutes long) or other dummy videos. All videos are mp4 files and all are in the same folder along with the inquisit script.
Can someone explain to me what could be the reason? Is the ASMR video too large so that data recording might not start due to overload? Or are there other properties that the video should or should not have?
I would be very grateful for help!!!
Script and details of the videos see below (I didn't add the instruction pages and the practice part):
<video asmr_target>
/items = ("ASMR.mp4")
/playthrough = true
/position = (50, 50)
/size = (70%, 70%)
/erase = false
</video>
<text reminder_basline_left>
/items = ("A: keine besondere Empfindung")
/position = (10, 90)
/txcolor = (0, 0, 0)
/font = ("Calibri", -20, 700, 0, 49)
</text>
<text reminder_relaxation_middle>
/items = ("G: Entspannung")
/position = (50, 90)
/txcolor = (0, 0, 0)
/font = ("Calibri", -20, 700, 0, 49)
</text>
<text reminder_tingling_right>
/items = ("L: Tingles")
/position = (90, 90)
/txcolor = (0, 0, 0)
/font = ("Calibri", -20, 700, 0, 49)
</text>
<text error>
/items = ("falsche Taste - Bitte verwenden Sie A, G oder L, wie unten angegeben")
/select = noreplace
/position = (10, 50)
/txcolor = (200, 0, 0)
/fontstyle = ("Calibri", 2.00%, false, false, false, false, 5, 1)
</text>
<trial asmr_target_start_video>
/stimulustimes = [1=asmr_target]
/timeout = 1
/pretrialpause = 0
</trial>
<trial asmr_target_measure>
/inputdevice = keyboard
/validresponse = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
/correctresponse = (30, 34, 38)
/errormessage = true(error, 1500)
/branch = [trial.asmr_practice_measure]
</trial>
<block preinstruction_target>
/preinstructions = (how_to_target, instruction)
</block>
<block target>
/trials = [1=asmr_target_start_video; 2=asmr_target_measure]
/bgstim = (reminder_basline_left, reminder_relaxation_middle, reminder_tingling_right)
/timeout = 1191000
</block>
<block postinstruction_target>
/postinstructions = (expt_end)
</block>
<expt>
/blocks = [1=preinstruction_target; 2=target; 3=postinstruction_target]
</expt>
<defaults>
/screencolor = (0, 0, 0)
/txcolor = (whitesmoke)
</defaults>
this is what it looks like when data is recorded
and so if not
kind regards,
Annemarie