Holcombe:SamTatamProtocol
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Rhythm without motion
Program is called Set Hz of screen!!!Rhythm5thPressWork4.py
Checklist when running the program:
- Should be using Viewsonic G810 as the screen (brightness and contrast setting same as AlexWhite—contrast 100%,brightness between G and H in word BRIGHTNESS that appears on the screen)
- Unplug second screen
- 120 Hz (better double-check, because when disconnect second monitor sometimes it resets
- 800 by 600 pixels
- Tap button box with each flash, and tap actual button on 5th flash
- 150 trials per session
- 7, 27, and 120 cd/m^2 (.25, .5, 1 nominal vals)
Methods notes
- startingDist had only two possible values, so first flash occurred either 1 sec or 533ms in
- calculated flash timing appears to be for mid-time of flash, not onset. So need to retrospectively fix data
- I see there were two "print" statements between button box clock start command and stimulus drawing start. These print statements might take time
- also I see that s.flushInput() is called *after* starting button box clock with s.write('e5'). Is this wise?
Data analysis, Sam method
- Delete 5 rows up to header line (keep header line)
- luminance ratio is actually targetyPositionX column
- Delete all columns except subj, targetyPositionX, timePressRecorded
- then delete header row
- then SPSS +/- 250 ms was excluded as outliers, -99 means no response
new version march 09
- using mitsubishi diamond pro 2070 SB, contrast 100%, brightness 100% (which makes background quite bright)
- making fixation dimmer
- using lums .08, .32, 1
- tap to each of 8 from 3rd flash