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.. meta::
:description: MOABB API reference - Datasets, Paradigms, Evaluations, Pipelines, and analysis tools for EEG-based BCI benchmarking in Python.
:keywords: MOABB API, BCI Python API, EEG analysis, motor imagery paradigm, P300 paradigm, cross-session evaluation
=====================
API and Main Concepts
=====================
.. raw:: html
<div class="api-hero">
.. figure:: images/architecture.svg
:alt: Concept flow in MOABB
:class: api-architecture-diagram
Datasets and Paradigms define the problem; Evaluations and Pipelines
define the measurement.
.. raw:: html
<p class="api-intro">
There are 4 main concepts in the MOABB:
<strong class="concept-dataset">the datasets</strong>,
<strong class="concept-paradigm">the paradigms</strong>,
<strong class="concept-evaluation">the evaluations</strong>, and
<strong class="concept-pipeline">the pipelines</strong>.
In addition, we offer <strong>statistical</strong>,
<strong>visualization</strong>, <strong>utilities</strong> to simplify the workflow.
</p>
<p class="api-intro">
And if you want to just run the benchmark, you can use our
<strong>benchmark</strong> module that wraps all the steps in a single function.
</p>
</div>
Datasets
--------
.. currentmodule:: moabb.datasets
A dataset handles and abstracts low-level access to the data. The
dataset will read data stored locally, in the format in which they have
been downloaded, and will convert them into an MNE raw object. There are
options to pool all the different recording sessions per subject or to
evaluate them separately.
----------------------
Motor Imagery Datasets
----------------------
.. autosummary::
:toctree: generated/
:template: class.rst
AlexMI
BNCI2003_004
BNCI2014_001
BNCI2014_002
BNCI2014_004
BNCI2015_001
BNCI2015_004
BNCI2019_001
BNCI2020_001
BNCI2022_001
BNCI2024_001
BNCI2025_001
BNCI2025_002
Cho2017
Dreyer2023
Dreyer2023A
Dreyer2023B
Dreyer2023C
Lee2019_MI
GrosseWentrup2009
Ofner2017
PhysionetMI
Schirrmeister2017
Shin2017A
Shin2017B
Weibo2014
Zhou2016
Stieger2021
Liu2024
Beetl2021_A
Beetl2021_B
BCIComp2020UpperLimb
Brandl2020
Chang2025
Forenzo2023
Gao2026
GuttmannFlury2025_ME
GuttmannFlury2025_MI
HefmiIch2025
Jeong2020
Kaya2018
Kumar2024
Liu2025
Ma2020
Rozado2015
Tavakolan2017
TrianaGuzman2024
Wairagkar2018
Wu2020
Yang2025
Yi2025
Zhang2017
Zhou2020
Zuo2025
------------------------
Imagined Speech Datasets
------------------------
MOABB now welcomes **imagined speech** datasets — subjects silently imagine
speaking words, phonemes, or phrases. They share the ``imagery`` paradigm
tag with motor imagery and can be decoded with the existing
:class:`~moabb.paradigms.MotorImagery` and
:class:`~moabb.paradigms.FilterBankMotorImagery` classes.
.. autosummary::
:toctree: generated/
:template: class.rst
AguileraRodriguez2025
Nguyen2017_L
Nguyen2017_S
Nguyen2017_SL
Nguyen2017_V
Nieto2022
Pressel2016
-----------------
ERP/P300 Datasets
-----------------
.. autosummary::
:toctree: generated/
:template: class.rst
BI2012
BI2013a
BI2014a
BI2014b
BI2015a
BI2015b
Cattan2019_VR
BNCI2014_008
BNCI2014_009
BNCI2015_003
BNCI2015_006
BNCI2015_007
BNCI2015_008
BNCI2015_009
BNCI2015_010
BNCI2015_012
BNCI2015_013
BNCI2016_002
BNCI2020_002
EPFLP300
Huebner2017
Huebner2018
Lee2019_ERP
Sosulski2019
ErpCore2021_ERN
ErpCore2021_LRP
ErpCore2021_MMN
ErpCore2021_N2pc
ErpCore2021_N170
ErpCore2021_N400
ErpCore2021_P3
RomaniBF2025ERP
Kojima2024A
Kojima2024B
Lee2021Mobile_ERP
Chailloux2020
GuttmannFlury2025_P300
Kaneshiro2015
Lee2024_AC
Lee2024_BS
Lee2024_DL
Lee2024_EL
Lee2024_TV
Mainsah2025_A
Mainsah2025_B
Mainsah2025_C
Mainsah2025_D
Mainsah2025_E
Mainsah2025_F
Mainsah2025_G
Mainsah2025_H
Mainsah2025_I
Mainsah2025_J
Mainsah2025_K
Mainsah2025_L
Mainsah2025_M
Mainsah2025_N
Mainsah2025_O
Mainsah2025_P
Mainsah2025_Q
Mainsah2025_R
Mainsah2025_S1
Mainsah2025_S2
Simoes2020
Speier2017
Zhang2025
Zheng2020
BCIComp2020WalkingERP
--------------
SSVEP Datasets
--------------
.. autosummary::
:toctree: generated/
:template: class.rst
Kalunga2016
Nakanishi2015
Wang2016
MAMEM1
MAMEM2
MAMEM3
Lee2019_SSVEP
Chen2017SingleFlicker
Dong2023
Han2024Fatigue
Kim2025BetaRange
Lee2021Mobile_SSVEP
Liu2020BETA
Liu2022EldBETA
Wang2021Combined
GuttmannFlury2025_SSVEP
--------------
c-VEP Datasets
--------------
.. autosummary::
:toctree: generated/
:template: class.rst
Thielen2015
Thielen2021
CastillosBurstVEP40
CastillosBurstVEP100
CastillosCVEP40
CastillosCVEP100
MartinezCagigal2023Checker
MartinezCagigal2023Pary
----------------------
Resting State Datasets
----------------------
.. autosummary::
:toctree: generated/
:template: class.rst
Cattan2019_PHMD
Hinss2021
Rodrigues2017
-----------------
Compound Datasets
-----------------
.. currentmodule:: moabb.datasets.compound_dataset
.. autosummary::
:toctree: generated/
:template: class.rst
BI2014a_Il
BI2014b_Il
BI2015a_Il
BI2015b_Il
Cattan2019_VR_Il
BI_Il
---------
Utilities
---------
.. currentmodule:: moabb.datasets
.. autosummary::
:toctree: generated/
:template: class.rst
base.BaseDataset
base.BaseBIDSDataset
base.LocalBIDSDataset
base.CacheConfig
bnci.base.MNEBNCI
bnci.base.BNCIBaseDataset
erpcore2021.ErpCore2021
mainsah2025.Mainsah2025
lee2024.Lee2024
Lee2019.Lee2019
castillos2023.BaseCastillos2023
ssvep_mamem.BaseMAMEM
lee2021_mobile.Lee2021Mobile
bbci_eeg_fnirs.BaseShin2017
dreyer2023._Dreyer2023Base
huebner_llp._BaseVisualMatrixSpellerDataset
compound_dataset.base.CompoundDataset
compound_dataset.bi_illiteracy._base_bi_il
fake.FakeDataset
fake.FakeVirtualRealityDataset
.. autosummary::
:toctree: generated/
:template: function.rst
download.data_path
download.data_dl
download.fs_issue_request
download.fs_get_file_list
download.fs_get_file_hash
download.fs_get_file_id
download.fs_get_file_name
utils.dataset_search
utils.find_intersecting_channels
utils.plot_datasets_grid
utils.plot_datasets_cluster
Paradigms
---------
.. currentmodule:: moabb.paradigms
A paradigm defines how the raw data will be converted to trials ready to
be processed by a decoding algorithm. This is a function of the paradigm
used, i.e. in motor imagery one can have two-class, multi-class, or
continuous paradigms; similarly, different preprocessing is necessary
for ERP vs ERD paradigms.
-----------------
Imagery Paradigms
-----------------
The ``imagery`` paradigm tag covers both motor imagery and imagined
speech. :class:`Imagery` is a thin alias for :class:`MotorImagery` that
makes the umbrella scope explicit; :class:`SpeechImagery` overrides the
defaults with the broadband 1-100 Hz filter used in imagined-speech
work (Aguilera-Rodriguez et al. 2025).
.. autosummary::
:toctree: generated/
:template: class.rst
Imagery
SpeechImagery
MotorImagery
LeftRightImagery
FilterBankLeftRightImagery
FilterBankMotorImagery
--------------
P300 Paradigms
--------------
.. autosummary::
:toctree: generated/
:template: class.rst
P300
---------------
SSVEP Paradigms
---------------
.. autosummary::
:toctree: generated/
:template: class.rst
SSVEP
FilterBankSSVEP
---------------
c-VEP Paradigms
---------------
.. autosummary::
:toctree: generated/
:template: class.rst
CVEP
FilterBankCVEP
-----------------------
Resting State Paradigms
-----------------------
.. autosummary::
:toctree: generated/
:template: class.rst
RestingStateToP300Adapter
-----------------------------------
Fixed Interval Windows Processings
-----------------------------------
.. autosummary::
:toctree: generated/
:template: class.rst
FixedIntervalWindowsProcessing
FilterBankFixedIntervalWindowsProcessing
---------
Utilities
---------
.. autosummary::
:toctree: generated/
:template: class.rst
motor_imagery.BaseMotorImagery
p300.BaseP300
ssvep.BaseSSVEP
BaseFixedIntervalWindowsProcessing
base.BaseParadigm
base.BaseProcessing
Evaluations
-----------
.. currentmodule:: moabb.evaluations
An evaluation defines how we go from trials per subject and session to a
generalization statistic (AUC score, f-score, accuracy, etc) – it can be
either within-recording-session accuracy, across-session within-subject
accuracy, across-subject accuracy, or other transfer learning settings.
.. autosummary::
:toctree: generated/
:template: class.rst
WithinSessionEvaluation
CrossSessionEvaluation
CrossSubjectEvaluation
.. autosummary::
:toctree: generated/
:template: class.rst
WithinSessionSplitter
WithinSubjectSplitter
CrossSessionSplitter
CrossSubjectSplitter
---------
Utilities
---------
.. autosummary::
:toctree: generated/
:template: class.rst
base.BaseEvaluation
Pipelines
---------
.. currentmodule:: moabb.pipelines
Pipeline defines all steps required by an algorithm to obtain
predictions. Pipelines are typically a chain of sklearn compatible
transformers and end with a sklearn compatible estimator. See
`Pipelines <http://scikit-learn.org/stable/modules/generated/sklearn.pipeline.Pipeline.html>`__
for more info.
.. autosummary::
:toctree: generated/
:template: class.rst
features.LogVariance
features.FM
features.ExtendedSSVEPSignal
features.AugmentedDataset
features.StandardScaler_Epoch
csp.TRCSP
classification.SSVEP_CCA
classification.SSVEP_TRCA
classification.SSVEP_MsetCCA
classification.SSVEP_itCCA
classification.SSVEP_eCCA
classification.SSVEP_TRCA_R
classification.SSVEP_SSCOR
classification.SSVEP_TDCA
Statistics, visualization and utilities
---------------------------------------
.. currentmodule:: moabb.analysis
Once an evaluation has been run, the raw results are returned as a
DataFrame. This can be further processed via the following commands to
generate some basic visualization and statistical comparisons:
--------
Plotting
--------
.. autosummary::
:toctree: generated/
:template: function.rst
plotting.score_plot
plotting.paired_plot
plotting.summary_plot
plotting.meta_analysis_plot
plotting.dataset_bubble_plot
----------
Statistics
----------
.. autosummary::
:toctree: generated/
:template: function.rst
meta_analysis.find_significant_differences
meta_analysis.compute_dataset_statistics
meta_analysis.combine_effects
meta_analysis.combine_pvalues
meta_analysis.collapse_session_scores
-----
Utils
-----
.. currentmodule:: moabb
.. autosummary::
:toctree: generated/
:template: function.rst
set_log_level
setup_seed
set_download_dir
make_process_pipelines
Benchmark
---------
.. currentmodule:: moabb
The benchmark module wraps all the steps in a single function. It
downloads the data, runs the benchmark, and returns the results. It is
the easiest way to run a benchmark.
.. admonition:: Minimal benchmark example
.. code-block:: python
from moabb import benchmark
results = benchmark(
pipelines="./pipelines",
evaluations=["WithinSession"],
paradigms=["LeftRightImagery"],
include_datasets=[BNCI2014_001(), PhysionetMI()],
exclude_datasets=None,
results="./results/",
overwrite=True,
plot=True,
output="./benchmark/",
n_jobs=-1,
)
.. autosummary::
:toctree: generated/
:template: function.rst
benchmark