README 5.6 KB

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  1. # README
  2. ## Contact person:
  3. - Rémi Gau
  4. - email: remi.gau@gmail.com
  5. - ORCID: 0000-0002-1535-9767
  6. ## Access to the data
  7. See the datalad section below.
  8. ## Overview
  9. - [ ] Project name (if relevant)
  10. - [x] Year(s) that the project ran
  11. - from 2007 to 2010
  12. - [ ] Brief overview of the tasks in the experiment
  13. A paragraph giving an overview of the experiment. This should include the goals
  14. or purpose and a discussion about how the experiment tries to achieve these
  15. goals.
  16. - [ ] Description of the contents of the dataset
  17. An easy thing to add is the output of the bids-validator that describes what
  18. type of data and the number of subject one can expect to find in the dataset.
  19. - [ ] Independent variables
  20. A brief discussion of condition variables (sometimes called contrasts or
  21. independent variables) that were varied across the experiment.
  22. - [ ] Dependent variables
  23. A brief discussion of the response variables (sometimes called the dependent
  24. variables) that were measured and or calculated to assess the effects of varying
  25. the condition variables. This might also include questionnaires administered to
  26. assess behavioral aspects of the experiment.
  27. - [ ] Control variables
  28. A brief discussion of the control variables --- that is what aspects were
  29. explicitly controlled in this experiment. The control variables might include
  30. subject pool, environmental conditions, set up, or other things that were
  31. explicitly controlled.
  32. - [ ] Quality assessment of the data
  33. Provide a short summary of the quality of the data ideally with descriptive
  34. statistics if relevant and with a link to more comprehensive description (like
  35. with MRIQC) if possible.
  36. ## Methods
  37. ### Apparatus
  38. A summary of the equipment and environment setup for the experiment. For
  39. example, was the experiment performed in a shielded room with the subject seated
  40. in a fixed position.
  41. ### Initial setup
  42. A summary of what setup was performed when a subject arrived.
  43. ### Task organization
  44. How the tasks were organized for a session. This is particularly important
  45. because BIDS datasets usually have task data separated into different files.)
  46. - [ ] Was task order counter-balanced?
  47. - [ ] What other activities were interspersed between tasks?
  48. - [ ] In what order were the tasks and other activities performed?
  49. ### Task details
  50. As much detail as possible about the task and the events that were recorded.
  51. ### Missing data
  52. Mention something if some participants are missing some aspects of the data.
  53. This can take the form of a processing log and/or abnormalities about the
  54. dataset.
  55. Some examples:
  56. - A brain lesion or defect only present in one participant
  57. - Some experimental conditions missing on a given run for a participant because
  58. of some technical issue.
  59. - Any noticeable feature of the data for certain participants
  60. - Differences (even slight) in protocol for certain participants.
  61. ---
  62. [![made-with-datalad](https://www.datalad.org/badges/made_with.svg)](https://datalad.org)
  63. ## DataLad datasets and how to use them
  64. This repository is a [DataLad](https://www.datalad.org/) dataset. It provides
  65. fine-grained data access down to the level of individual files, and allows for
  66. tracking future updates. In order to use this repository for data retrieval,
  67. [DataLad](https://www.datalad.org/) is required. It is a free and open source
  68. command line tool, available for all major operating systems, and builds up on
  69. Git and [git-annex](https://git-annex.branchable.com/) to allow sharing,
  70. synchronizing, and version controlling collections of large files. You can find
  71. information on how to install DataLad at
  72. [handbook.datalad.org/en/latest/intro/installation.html](http://handbook.datalad.org/en/latest/intro/installation.html).
  73. ### Get the dataset
  74. A DataLad dataset can be `cloned` by running
  75. ```
  76. datalad clone <url>
  77. ```
  78. Once a dataset is cloned, it is a light-weight directory on your local machine.
  79. At this point, it contains only small metadata and information on the identity
  80. of the files in the dataset, but not actual _content_ of the (sometimes large)
  81. data files.
  82. ### Retrieve dataset content
  83. After cloning a dataset, you can retrieve file contents by running
  84. ```
  85. datalad get <path/to/directory/or/file>`
  86. ```
  87. This command will trigger a download of the files, directories, or subdatasets
  88. you have specified.
  89. DataLad datasets can contain other datasets, so called _subdatasets_. If you
  90. clone the top-level dataset, subdatasets do not yet contain metadata and
  91. information on the identity of files, but appear to be empty directories. In
  92. order to retrieve file availability metadata in subdatasets, run
  93. ```
  94. datalad get -n <path/to/subdataset>
  95. ```
  96. Afterwards, you can browse the retrieved metadata to find out about subdataset
  97. contents, and retrieve individual files with `datalad get`. If you use
  98. `datalad get <path/to/subdataset>`, all contents of the subdataset will be
  99. downloaded at once.
  100. ### Stay up-to-date
  101. DataLad datasets can be updated. The command `datalad update` will _fetch_
  102. updates and store them on a different branch (by default
  103. `remotes/origin/master`). Running
  104. ```
  105. datalad update --merge
  106. ```
  107. will _pull_ available updates and integrate them in one go.
  108. ### Find out what has been done
  109. DataLad datasets contain their history in the `git log`. By running `git log`
  110. (or a tool that displays Git history) in the dataset or on specific files, you
  111. can find out what has been done to the dataset or to individual files by whom,
  112. and when.
  113. ### More information
  114. More information on DataLad and how to use it can be found in the DataLad
  115. Handbook at
  116. [handbook.datalad.org](http://handbook.datalad.org/en/latest/index.html). The
  117. chapter "DataLad datasets" can help you to familiarize yourself with the concept
  118. of a dataset.