This script runs a simple routine that will display a red square on the screen that the user can move and rescale till it feels their whole field of view (FOV) on the screen. This can prove useful when the FOV is partly obstructed (like in an fMRI) experiment and hard to measure.
├── .git
├── .github # where you put anything github related
│ └── workflows # where you define your github actions
├── lib # where you put the code from external libraries
├── src # where you put your code
├── tests # where you put your unit tests
| ├── README.md
| └── miss_hit.cfg
├── LICENSE
├── README.md
├── miss_hit.cfg # configuration file for the matlab miss hit linter
└── initEnv.m # a .m file to set up your project (adds the right folder to the path)Install
git clone --recurse-submodules https://github.com/cpp-lln-lab/estimate_visual_FOV.git
Set parameters in setParameters.m
Run
mainScript
When run in cfg.userIsExperimenter = true mode, the experimenter can use the
keys
LeftArrowto move the FOV leftRightArrowto move the FOV right move the FOVUpArrowto move the FOV upDownArrowto move the FOV downpto scale the FOV upmto scale the FOV down
Otherwise check the cfg.keyboard set up in setParameters.
Make sure that the values you use in this script are the same as the one you will use in the experiment where you need to adapt the FOV.
cfg.screen.monitorWidth = FIXME % in cm
cfg.screen.monitorDistance = FIXME; % distance from the screen in cm--------------------------------------------------------------------------------
Field of view in PIXEL:
top left: 1137 219
bottom right: 1595 477
Field of view in PIXEL:
width: 258
height: 458
--------------------------------------------------------------------------------
Field of view in DEGREES OF VISUAL ANGLES:
top left: 8.32304 1.60312
bottom right: 11.6757 3.49172
Field of view in DEGREES OF VISUAL ANGLES:
width: 1.8886
height: 3.35264
--------------------------------------------------------------------------------
SET UP TO COPY
% fixation cross displacement in degrees of visual angles:
cfg.fixation.xDisplacement = 1.771482;
cfg.fixation.yDisplacement = -0.936982;
% set up configuration:
cfg.testingDevice = 'mri';
cfg.screen.monitorDistance = 95.000000;
cfg.screen.monitorWidth = 25.000000;
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