Image names not being presented in output datafile

Builder
1

OS (Win10):
PsychoPy version (2021.2.3):
Standard Standalone? (y)
What are you trying to achieve?:

Modify data output file to include stimulus name along with keypress responses.

What did you try to make it work?:
I have read through the psychopy.data documentation. I have also utilized different experimental building settings.

What specifically went wrong when you tried that?:
Hi everyone, I do not have an error to show for this question as the experiment does not have one and runs without error.

I am using the shuffle command prior the experimental loop in a routine I call “shuffler”

random.Random(seed).shuffle(target)

The experimental loop is a picture naming paradigm and called PNT_1 and contains three components in the following order:

  1. Code: “pnt_code”
  2. Image: image_PNT
  3. Keyboard: “pnt_code”

pnt_code provides the experiment with the shuffled data as follows.

Begin Experiment:

#Item counter
curr_item = -1

Begin Routine

#increment item counter by 1
#starting at negative 1 makes python chose first item with the beload code
curr_item += 1

#update the item variables as we progress through list
pnt_items = target[curr_item]

The images component is formatted as follows:
image

The keyboard routine is here:
image

I get accuracy, response time data, etc. But I do not get the item’s name as an output. At the begining of the experiment when I run the shuffle command I do output a csv of the items so that the experimenter will know which item is coming next. So one thing I could do is merge the dataframes, but I have to believe I can do this in pytorch and not with external code.

Any help would be greatly appreciated!

Please let me know if I can provide anymore information.

2

I had difficulties getting it up on pavlovia and one of the commands isnt java compatable so here is a link to the gitlab with all of the files.

3

Perhaps another way to ask this question would be, does anyone know if I can append data to the output csv file from the experiment itself?

The keypresses are being saved for each trial; however, the stimulus assosciated with the trial is not. So I would like to make sure this is included in the output data file.

4

thisExp.addData('ColumnName',value)

5

Thanks for this, a definite step in the right direction.

To keep consistent with the provided code, when I include this in experiment I have added thisExp.addData(‘columnName’, target) to the begin routine block. It certainly does print out all the items, but as a list of all items rather than the item being delivered. For example, I have 175 trials within the routine and each value under the columnName variable is a list of the 175 trials.

Any thought son how to modify how to save just the item being delivered for each item?

If not, I could add the code to the experiment block and then transpose the list.

6

What code are you using to save the target to the data file?

What are you using to present the target?

It sounds like you are saving a list.

7

In case we need this, my experiment looks as follows:

image
image2795×308 49.9 KB

I load data in the stim loader. THen I shuffle the data manually with python. The reason i did this is because the people that will be administering this test, wanted to see what items were going to be presented ahead of time. Totally aware i can shuffle within the trial, but I could not figure out a way to print the list prior to admission with the builder randomizer.

In regard to the question at han d, i just figured out the answer. It works as follows:

Within the pnt_trials i present the stimulus to be delivered during the experiment, and the components look as follows:

image

As @wakecarter suggested, I utilized thisExp.addData(‘ColumnName’,value)

I inserted the following code within the pnt_code component under the each frame section:

Note that within the value component I have inserted pnt_items which is the name of the data being provided to image_PNT.

thisExp.addData('Target_name', pnt_items)`