BIDS participant questionnaires

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1

Hi!

I want to include information on quizzes that our subjects had to take both pre and post stimulus. There are a lot of questions, so I organised them them into 2 different folders, with a .tsv file per subject within each of those folders respectively for better readability.

I tried including those folders in the phenotype directory, but it looks like i can’t have any folders within (BIDS Validator did not recognise it - says NOT_INCLUDED).

Could someone please provide any advice on how I can approach this issue?

Thanks!

2

Hi @nikhilkuppa,

Without seeing how you tried, we cannot give you an exact diagnosis of what went wrong, but did you match what is described in the BIDS specification?

https://bids-specification.readthedocs.io/en/stable/modality-specific-files/behavioral-experiments.html#behavioral-experiments-with-no-neural-recordings

sub-<label>/
    [ses-<label>/]
        beh/
            sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_beh.json
            sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_beh.tsv
            sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_events.json
            sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>]_events.tsv
            sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>][_recording-<label>]_physio.json
            sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>][_recording-<label>]_physio.tsv.gz
            sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>][_recording-<label>]_stim.json
            sub-<label>[_ses-<label>]_task-<label>[_acq-<label>][_run-<index>][_recording-<label>]_stim.tsv.gz

Best,
Steven

3

Hi Steven,

Here is how I organized them in the phenotype directory:

image
image286×703 5.48 KB

https://bids-specification.readthedocs.io/en/stable/modality-agnostic-files.html#phenotypic-and-assessment-data

The specifications mention that I must have only files within this directory, but due to the large number of files, I wanted to organize them in 2 different directories. Is there a way I can do this within the rules of the BIDS specifications?

4

Hi @nikhilkuppa,

No, please refer to this example, bids-examples/eeg_ds003645s_hed_demo/phenotype at 7de1e8c569ae70209217c42a6843be11ffc8e9fd · bids-standard/bids-examples · GitHub.

Best,
Steven

5

Thank you! In that case I’ll try reformatting my questionnaire files.