---
# template
# - number:
#   title:
#   display:
#   google_doc:
#   pull_request:
#   html_preview:
#   leads:
#   # MUST match given-names and family-names from the bids specification citation.cff
#   -   given-names: ' '
#       family-names: ' '
#   bids_maintainers:
#   -   given-names: ' '
#       family-names: ' '
#   status:
#   blocking:
#   communication_channel:
#   pull_request_created:
#   pull_request_merged:

-   number: '004'
    title: Susceptibility Weighted Imaging
    google_doc: https://docs.google.com/document/d/1kyw9mGgacNqeMbp4xZet3RnDhcMmf4_BmRgKaOkO2Sc/
    content:
    -   raw
    leads:
    -   given-names: ' '
        family-names: ' '
    bids_maintainers:
    status:
    blocking:
    -   Looking for a new leader.
    google_doc_created: 2017-04
    pull_request_created:
    pull_request_merged:

-   number: '011'
    title: Structural preprocessing derivatives
    google_doc: https://docs.google.com/document/d/1YG2g4UkEio4t_STIBOqYOwneLEs1emHIXbGKynx7V0Y/
    pull_request: https://github.com/bids-standard/bids-specification/pull/518
    html_preview: https://bids-specification--518.org.readthedocs.build/en/518/05-derivatives/04-structural-derivatives.html
    content:
    -   derivative
    leads:
    -   given-names: Viviana
        family-names: Siless
    bids_maintainers:
    -   given-names: Christopher J.
        family-names: Markiewicz
    status:
    -   Stability! (We haven't touched it in a bit.)
    blocking:
    -   Staleness! (We haven't touched it in a bit.)
    -   Mostly just need to regroup with other BEPs and make sure we're being consistent.
    google_doc_created: 2017-08
    pull_request_created: 2020-06
    pull_request_merged:

-   number: '012'
    title: Functional preprocessing derivatives
    google_doc:
    pull_request: https://github.com/bids-standard/bids-specification/pull/519
    html_preview: https://bids-specification--519.org.readthedocs.build/en/519/derivatives/functional-derivatives.html
    content:
    -   derivative
    leads:
    -   given-names: Christopher J.
        family-names: Markiewicz
    bids_maintainers:
    -   given-names: Christopher J.
        family-names: Markiewicz
    status:
    -   Moderate reworking, post-BEP23 meeting. "boldmap" suffix.
    -   Schema implemented; waiting on full schema validation to merge.
    blocking:
    -   Overlap with BEP 39 (decompositions).
    -   Probably just needs dropping from BEP 12, but need to make sure BEP 39 meets the needs served there.
    google_doc_created: 2018-10
    pull_request_created: 2020-06
    pull_request_merged:

-   number: '014'
    title: Affine transformations and nonlinear field warps
    google_doc: https://docs.google.com/document/d/11gCzXOPUbYyuQx8fErtMO9tnOKC3kTWiL9axWkkILNE/
    content:
    -   derivative
    leads:
    -   given-names: Oscar
        family-names: Esteban
    bids_maintainers:
    -   given-names: Christopher J.
        family-names: Markiewicz
    status:
    -   After the kick-off meeting (2019), progress locked on developing a prototype of a new HDF5-based format (X5)
    -   Minor bug fixes and features to support more transforms
    -   'Perspectives: The current draft seems sufficient for storing transforms'
    -   'Perspectives: X5 has high promises to enable effortless spatial transforms'
    blocking:
    -   Bandwidth to finalize development
    -   'Current blockers: surface transforms & X5 storing'
    google_doc_created: 2017-08
    pull_request_created:
    pull_request_merged:

-   number: '016'
    title: Diffusion weighted imaging derivatives
    pull_request: https://github.com/bids-standard/bids-specification/pull/2211
    content:
    -   derivative
    leads:
    -   given-names: Franco
        family-names: Pestilli
    -   given-names: Oscar
        family-names: Esteban
    bids_maintainers:
    status:
    -   adapted general spatial derivatives proposal, meaning using <modality>map, like `dwimap`
    -   decided on using `params-` to denote different file types, for example `param-md` or `param-fa`
    -   updated meta-data
    blocking:
    google_doc_created:
    pull_request_created:
    pull_request_merged:

-   number: '017'
    title: Generic BIDS connectivity data schema
    display: Connectivity schema
    google_doc: https://docs.google.com/document/d/1ugBdUF6dhElXdj3u9vw0iWjE6f_Bibsro3ah7sRV0GA/
    content:
    -   derivative
    leads:
    -   given-names: Eugene P.
        family-names: Duff
    bids_maintainers:
    status:
    -   specified different formats for dense and sparse matrices
    -   'proposed arrays in h5 or zarr to cover multi-dimensional matrices (for example: dynamic connectivity)'
    blocking:
    google_doc_created: 2017-05
    pull_request_created:
    pull_request_merged:

-   number: '021'
    title: Common Electrophysiological Derivatives
    google_doc: https://docs.google.com/document/d/1PmcVs7vg7Th-cGC-UrX8rAhKUHIzOI-uIOh69_mvdlw/
    content:
    -   derivative
    leads:
    -   given-names: Arnaud
        family-names: Delorme
    -   given-names: Dora
        family-names: Hermes
    -   given-names: Mainak
        family-names: Jas
    -   given-names: Guiomar
        family-names: Niso
    -   given-names: Robert
        family-names: Oostenveld
    -   given-names: Cyril
        family-names: Pernet
    -   given-names: Christine
        family-names: Rogers
    status:
    -   'Focus on raw-ish data: channels by time: epoching, filtering, interpolation...'
    -   'All provenance tracking: outsourced to BEP028 (“provenance”)'
    -   Reusing existing (raw) data formats where applicable
    -   'No additional entities or suffixes: focus on “desc” entity'
    -   Create new “descriptions.tsv” file to accompany and document the “desc” entity
    -   Working on examples on GitHub
    -   'Perspectives: Derivatives beyond channels by time data will be discussed at a later point'
    blocking:
    google_doc_created: 2018-05
    pull_request_created:
    pull_request_merged:

-   number: '023'
    title: PET Preprocessing derivatives
    google_doc: https://docs.google.com/document/d/1yzsd1J9GT-aA0DWhdlgNr5LCu6_gvbjLyfvYq2FuxlY/
    content:
    -   derivative
    leads:
    -   given-names: Martin
        family-names: Noergaard
    -   given-names: Graham
        family-names: Searle
    -   given-names: Melanie
        family-names: Ganz-Benjaminsen
    bids_maintainers:
    -   given-names: Anthony
        family-names: Galassi
    status:
    -   Defined all the necessary components to be included in the specification
    -   Alignment with other modalities obtained at Copenhagen BIDS derivatives meeting
    -   Example PET derivatives datasets available on github
    -   'Perspectives: 3rd joint meeting between all PET collaborators in August 2023'
    -   'Perspectives:  Aim is to finish the specification during the fall of 2023'
    blocking:
    -   Need more example datasets (fore example different tracers) with different preprocessing choices to capture as most of the PET community as possible
    -   Need to finish alignment with other modalities
    -   Still need to agree on the level of information going into corresponding json files
    google_doc_created: 2018-08
    pull_request_created:
    pull_request_merged:

-   number: '024'
    title: Computed Tomography scan
    google_doc: https://docs.google.com/document/d/1fqnJZ18x5LJC8jiJ8yvPHUGFzNBZ6gW2kywYrUKWtuo/
    content:
    -   raw
    leads:
    -   given-names: Hugo
        family-names: Boniface
    bids_maintainers:
    status:
    -   Lead seeking more contributors and experts.
    blocking:
    google_doc_created: 2018-11
    pull_request_created:
    pull_request_merged:

-   number: '026'
    title: Microelectrode Recordings
    google_doc: https://docs.google.com/document/d/14KC1d5-Lx-7ZSMtwS7pVAAvz-2WR_uoo5FvsNirzqJw/
    content:
    -   raw
    leads:
    -   given-names: ' '
        family-names: ' '
    bids_maintainers:
    status:
    -   BEP is open to new leadership, see also [BEP032 (animal electrophys)](https://docs.google.com/document/d/1oG-C8T-dWPqfVzL2W8HO3elWK8NIh2cOCPssRGv23n0/)
    blocking:
    -   Searching for a new leader.
    google_doc_created: 2018-04
    pull_request_created:
    pull_request_merged:

-   number: '028'
    title: Provenance
    google_doc: https://docs.google.com/document/d/1vw3VNDof5cecv2PkFp7Lw_pNUTUo8-m8V4SIdtGJVKs/
    content:
    -   metadata
    leads:
    -   given-names: Satrajit S.
        family-names: Ghosh
    -   given-names: Camille
        family-names: Maumet
    -   given-names: Yaroslav O.
        family-names: Halchenko
    bids_maintainers:
    status:
    -   '[Specification](https://bids.neuroimaging.io/bep028)'
    -   '[Set of examples](https://github.com/bids-standard/BEP028_BIDSprov)'
    -   'Perspectives: Opening up to BIDS community for feedback'
    -   'Perspectives: Engaging with software developers (in progress w/ SPM, AFNI)'
    blocking:
    google_doc_created: 2018-08
    pull_request: https://github.com/bids-standard/bids-specification/pull/2099
    pull_request_created: 2025-04
    pull_request_merged:

-   number: '032'
    title: Microelectrode electrophysiology
    google_doc: https://docs.google.com/document/d/1oG-C8T-dWPqfVzL2W8HO3elWK8NIh2cOCPssRGv23n0/
    pull_request: https://github.com/bids-standard/bids-specification/pull/2307
    html_preview: https://bids-specification--2307.org.readthedocs.build/en/2307/modality-specific-files/microelectrode-electrophysiology.html
    content:
    -   raw
    leads:
    -   given-names: Sylvain
        family-names: Takerkart
    -   given-names: Benjamin
        family-names: Dichter
    -   given-names: Yaroslav O.
        family-names: Halchenko
    -   given-names: Lyuba
        family-names: Zehl
    -   given-names: Andrew
        family-names: Davison
    bids_maintainers:
    -   given-names: Rémi
        family-names: Gau
    status:
    -   Decided on the new name (not just "Animal" but "Microelectrode"), modalities, datatypes
    -   Nearly finalized added metadata
    -   PR compiles green, preview is available
    -   'Target: finalize & merge PR into the BIDS specs in 2025'
    blocking:
    -   Need to prepare example datasets
    -   Need to start thinking about derived data (spike sorted)
    google_doc_created: 2020-12
    pull_request_created: 2022-11
    pull_request_merged:

-   number: '033'
    title: Advanced Diffusion Weighted Imaging
    google_doc: https://docs.google.com/document/d/1en4ByORlPqwDfZwNOOBTj0GwpYBcS0_2peqreTOvwDU/
    content:
    -   raw
    leads:
    -   given-names: James
        family-names: Gholam
    -   given-names: Leandro
        family-names: Beltrachini
    -   given-names: Filip
        family-names: Szczepankiewicz
    bids_maintainers:
    status:
    -   'New BEP, seeking contributors and collecting community feedback relating to: priority sequences to support, best supported binary structured formats
        (e.g. CBOR? HDF5? MsgPack?).'
    -   Comments may be submitted directly on the document.
    -   Generating example datasets [here](https://github.com/JAgho/MISP_plot/tree/main) and determining best practice with vendors to record data in-sequence
    blocking:
    google_doc_created: 2021-04
    pull_request_created:
    pull_request_merged:

-   number: '034'
    title: Computational modeling
    pull_request: https://github.com/bids-standard/bids-specification/pull/967
    html_preview: https://bids-specification--967.org.readthedocs.build/en/967/modality-specific-files/computational-models.html
    content:
    -   derivative
    -   metadata
    leads:
    -   given-names: Michael
        family-names: Schirner
    -   given-names: Petra
        family-names: Ritter
    bids_maintainers:
    status:
    -   sim2bids app created
    -   easier to bring neural simulation data (especially in The Virtual Brain format) into the proposed BIDS Comp Model format
    -   'Perspectives: A roadmap that coordinates efforts across BEPs would be appreciated.'
    blocking:
    -   BEPs have overlapping concerns (Comp Models, Spaces and mappings, Generic BIDS connectivity schema, time series, Provenance, Atlases)
    -   need to separate concerns & provide a roadmap for each BEP
    google_doc_created: 2021-02
    pull_request_created: 2021-08
    pull_request_merged:

-   number: '035'
    title: Modular extensions for individual participant data mega-analyses with non-compliant derivatives
    display: Mega-analyses
    google_doc: https://docs.google.com/document/d/1tFRNumQyIgjXBNC3brFDLO9FaikjL84noxK6Om-Ctik/
    content:
    -   derivative
    leads:
    -   given-names: Giuseppe
        family-names: Gallitto
    -   given-names: Balint
        family-names: Kincses
    -   given-names: Tamas
        family-names: Spisak
    bids_maintainers:
    -   given-names: Rémi
        family-names: Gau
    status:
    -   Meta-data harmonization with a term-mapper goes to BEP043
    -   'Persperctive: Repeated community review of the simplified proposal'
    blocking:
    -   Term-mapping is a general feature => complex, modular proposal
    google_doc_created: 2021-12
    pull_request_created:
    pull_request_merged:

-   number: '036'
    title: Phenotypic Data Guidelines
    google_doc: https://docs.google.com/document/d/1WTkfES8L0vItZVyyR68fc-9cO03jS-kCnMnw6602pbc/
    content:
    -   raw
    leads:
    -   given-names: Eric
        family-names: Earl
    -   given-names: Samuel
        family-names: Guay
    -   given-names: Sebastian
        family-names: Urchs
    -   given-names: Arshitha
        family-names: Basavaraj
    bids_maintainers:
    -   given-names: Chris
        family-names: Markiewicz
    -   given-names: Ross
        family-names: Blair
    status:
    -   BEP entering community review period shortly.
    -   BIDS specification PR 2123.
    -   BIDS examples PR 465.
    blocking:
    -   A successful community review.
    google_doc_created: 2021-10
    pull_request_created: 2025-05
    pull_request_merged:

-   number: '037'
    title: Non-Invasive Brain Stimulation
    google_doc: https://docs.google.com/document/d/1drYd7kaNbHTcYPR3T_CRDsPcEbFSV7JbJUmhMPeWMqY/
    current_repository: https://github.com/nigelrogasch/nibs-bids/tree/master/nibs-bids-v6/
    current_preprint_editable: https://docs.google.com/document/d/1xfetyFkXh8kqObfCViUvku69pk4ZZw8BC5GL8_Cq9TI/edit?tab=t.0
    current_preprint:
    author_list: https://docs.google.com/spreadsheets/d/1oMImk-HXsyLZtTj3yIa1uY9LX3hVpsCiAGZP3oSV0Eo/edit?gid=0#gid=0
    content:
    -   raw
    leads:
    -   given-names: Giacomo
        family-names: Bertazzoli
    -   given-names: Vittorio
        family-names: Iacovella
    -   given-names: Peter J.
        family-names: Fried
    -   given-names: Marta
        family-names: Bortoletto
    -   given-names: Nigel
        family-names: Rogasch
    past leads (inactive):
    -   given-names: Carlo
        family-names: Miniussi
    bids_maintainers:
    -   given-names: Rémi
        family-names: Gau
    status:
    -   v1.0 2020-11-09 Initial work on specification with vittorio.iacovella@unitn.it carlo.miniussi@unitn.it marta.bortoletto@cognitiveneuroscience.it
    -   v1.0 2021-04 First example of a NIBS-BIDS dataset https://gin.g-node.org/CIMeC/TMS-EEG_brain_connectivity_BIDS
    -   V1.0 2021-11 Brainhack @Donosti with eleonora.marcantoni@cognitiveneuroscience.it martinabulgari3@gmail.com and g.guidali@campus.unimib.it
    -   V1.0 2022-02 First international NIBS-BIDS meeting
    -   V1.0 2022-11 First update of the BEP
    -   V2.0 2023-08 BEP 2.0 available with the new NIBS-BIDS logic for describing NIBS experiments
    -   V3.0 2024-07 BEP 3.0 available with a draft of the final BIDS structure.
    -   V4.0 2024-11 BEP 4.0 updated with a new, more comprehensive structure. Added int files for offline stimulation. Harmonized parameters with SimNIBS.
        Use of events and scans files for online stimulation.
    -   V4.1 2024-12 BEP 4.1 Comments form December 9th, 2024 5th general meeting implemented, added FAQ section. Met with the BIDS maintenance team in
        January 2025. Agreed on closing the open discussions, lock the google doc and start the PR.
    -   V6.2 2026-03 BEP 6.2 Comments form December 12th, 2025 6th general meeting implemented. Met with the BIDS steering team in March 2026. Agreed on
        NSF FAIROS application on NIBS-BIDS implementation https://www.nsf.gov/funding/opportunities/fairos-findable-accessible-interoperable-reusable-open-science.
        Agreed on creating a preprint version of the BEP037 (to bi cited as a work-in-progress).
    blocking:
    google_doc_created: 2022-09
    pull_request_created:
    pull_request_merged:

-   number: '039'
    title: Dimensionality reduction-based networks
    google_doc: https://docs.google.com/document/d/1GTWsj0MFQedXjOaNk6H0or6IDVFyMAysrJ9I4Zmpz2E/
    content:
    -   raw
    leads:
    -   given-names: Arianna
        family-names: Sala
    -   given-names: Anibal
        family-names: Sólon
    -   given-names: Cyrus
        family-names: Eierud
    -   given-names: Franco
        family-names: Pestilli
    -   given-names: Peer
        family-names: Herholz
    bids_maintainers:
    status:
    -   adapted general spatial derivatives proposal, meaning using `<modality>map`, for example `eegmap` and `boldmap` for spatial components
    -   decided on `model-` and `items-` as keys to denote the utilized model and component number, if files are 3D, respectively
    -   updated meta-data and examples
    blocking:
    google_doc_created: 2021-10
    pull_request_created:
    pull_request_merged:

-   number: '040'
    title: Functional Ultrasound
    google_doc: https://docs.google.com/document/d/1W3z01mf1E8cfg_OY7ZGqeUeOKv659jCHQBXavtmT-T8/
    content:
    -   raw
    leads:
    -   given-names: Jean-Charles
        family-names: Mariani
    -   given-names: Samuel
        family-names: Le Meur-Diebolt
    -   given-names: Thomas
        family-names: Deffieux
    bids_maintainers:
    -   given-names: Rémi
        family-names: Gau
    status:
    -   All issues raised on the original BEP have been resolved.
    -   Regular meetings with contributors scheduled.
    -   Scanner coordinate system has been proposed to harmonize affine transformations with moving probes.
    -   'Perspectives: Starting to bidsify existing datasets to stress test the BEP.'
    -   'Perspectives: timing metadata has been copied from the fMRI-BIDS specification, but evolutions could be discussed to handle non-stable sampling
        frequencies.'
    blocking:
    google_doc_created: 2023-03
    pull_request_created:
    pull_request_merged:

-   number: '041'
    title: Statistical Model Derivatives
    google_doc: https://docs.google.com/document/d/1KHzp-yk8KXvkUIhtN71WU0m4P4kKT9C1yvI-i9_kNeY/
    content:
    -   derivative
    leads:
    -   given-names: Taylor
        family-names: Salo
    bids_maintainers:
    -   given-names: Taylor
        family-names: Salo
    status:
    -   New BEP, collecting community comments and feedback.
    -   All collaborators are welcome.
    blocking:
    google_doc_created: 2022-08
    pull_request_created:
    pull_request_merged:

-   number: '043'
    title: BIDS Term Mapping
    google_doc: https://docs.google.com/document/d/1LACjc5hFXDpa2l_QddBPR41Vce_gglGv9WeuBB7LsBU/
    content:
    -   metadata
    leads:
    -   given-names: Christopher J.
        family-names: Markiewicz
    -   given-names: Eric A.
        family-names: Earl
    bids_maintainers:
    -   given-names: Christopher J.
        family-names: Markiewicz
    -   given-names: Eric A.
        family-names: Earl
    status:
    -   For being able to map non-BIDS data as BIDS-compatible.
    -   Now collecting community comments and feedback.
    -   All collaborators are welcome.
    blocking:
    google_doc_created: 2024-03
    pull_request_created:
    pull_request_merged:

-   number: '044'
    title: Stimuli
    pull_request: https://github.com/bids-standard/bids-specification/pull/2022
    html_preview: https://bids-specification--2022.org.readthedocs.build/en/2022/modality-specific-files/stimuli.html
    leads:
    -   given-names: Seyed Yahya
        family-names: Shirazi
    -   given-names: Dora
        family-names: Hermes
    -   given-names: Yaroslav O.
        family-names: Halchenko
    -   given-names: Kay
        family-names: Robbins
    -   given-names: Scott
        family-names: Makeig
    bids_maintainers:
    -   given-names: Rémi
        family-names: Gau
    status:
    -   Community comments and feedback are being collected (January 2025)
    -   To harmonize and make more reusable stimuli content under stimuli/
    -   Collecting community comments and feedback. All collaborators are welcome.
    -   'Original issue: [#153](https://github.com/bids-standard/bids-specification/issues/153)'
    content:
    -   raw
    blocking:
    google_doc_created: 2023-09
    pull_request_created: 2024-12
    pull_request_merged:

-   number: '045'
    title: Peripheral Physiological Recordings
    display: Physio
    pull_request: https://github.com/bids-standard/bids-specification/pull/2267
    html_preview: https://bids-specification--2267.org.readthedocs.build/en/2267/modality-specific-files/physiological-recordings.html
    google_doc: https://docs.google.com/document/d/1oTfjzY5ZnLIYd0kPPWhR81sBmMuy_jC5YYIaqj6OhSA/edit
    leads:
    -   given-names: Mary
        family-names: Miedema
    -   given-names: Stefano
        family-names: Moia
    -   given-names: Sourav
        family-names: Kulkarni
    bids_maintainers:
    -   given-names: Seyed Yahya
        family-names: Shirazi
    status:
    -   No longer developed in google doc, moved to <https://github.com/physiopy/bids-specification-physio>.
    -   To update standards for physiological data for improved clarity and a broader range of use cases.
    -   Now collecting community comments and feedback. All collaborators are welcome.
    -   'Original issue: [#1675](https://github.com/bids-standard/bids-specification/issues/1675).'
    content:
    -   raw
    blocking:
    google_doc_created: 2024-08
    pull_request_created: 2025-11
    pull_request_merged:

-   number: '046'
    title: Diffusion Tractography
    display: Tractography
    google_doc: https://docs.google.com/document/d/1ubDQ2RhgjnfGqoeukzEkPV9YEHhfYMERrj7-3b0c2HI/edit
    leads:
    -   given-names: Robert E.
        family-names: Smith
    -   given-names: Ariel
        family-names: Rokem
    -   given-names: Franco
        family-names: Pestilli
    status:
    -   Porting comprehensive description of streamline tractography mechanisms into specification - 10.1016/B978-0-12-817057-1.00023-8
    -   Determine appropriate resolution with TRX development - https://tee-ar-ex.github.io/trx-python/
    -   Decide on scope of BEP; e.g. whether to include tractometry, complex tract delineation
    content:
    -   derivative
    blocking:
    google_doc_created: 2022-02
    pull_request_created:
    pull_request_merged:

-   number: '047'
    title: Audio/video recordings for behavioral experiments
    display: Behavioral audio/video recordings
    pull_request: https://github.com/bids-standard/bids-specification/pull/2231
    html_preview: https://bids-specification--2231.org.readthedocs.build/en/2231/modality-specific-files/behavioral-experiments.html
    content:
    -   raw
    leads:
    -   given-names: Benjamin
        family-names: Dichter
    bids_maintainers:
    -   given-names: Seyed Yahya
        family-names: Shirazi
    status:
    -   Adds support for storing audio and video behavioral recordings (new `_audio` and `_video` suffixes) in the `beh/` directory.
    blocking:
    google_doc_created:
    pull_request_created: 2025-10
    pull_request_merged: