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:orphan:
Supported channel types
=======================
.. NOTE: part of this file is included in doc/overview/implementation.rst.
Changes here are reflected there. If you want to link to this content, link
to :ref:`channel-types` to link to that section of the implementation.rst
page. The next line is a target for :start-after: so we can omit the title
from the include:
channel-types-begin-content
.. NOTE: In the future, this table should be automatically synchronized with
the sensor types listed in the glossary. Perhaps a table showing data type
channels as well as non-data type channels should be added to the glossary
and displayed here too.
Channel types are represented in MNE-Python with shortened or abbreviated
names. This page lists all supported channel types, their abbreviated names,
and the measurement unit used to represent data of that type. Where channel
types occur in two or more sub-types, the sub-type abbreviations are given in
parentheses. More information about measurement units is given in the
:ref:`units` section.
.. NOTE: To include only the table, here's a different target for :start-after:
channel-types-begin-table
.. cssclass:: table-bordered
.. rst-class:: midvalign
================= ========================================= =================
Channel type Description Measurement unit
================= ========================================= =================
eeg scalp electroencephalography (EEG) Volts
meg (mag) Magnetoencephalography (magnetometers) Teslas
meg (grad) Magnetoencephalography (gradiometers) Teslas/meter
ecg Electrocardiography (ECG) Volts
seeg Stereotactic EEG channels Volts
dbs Deep brain stimulation (DBS) Volts
ecog Electrocorticography (ECoG) Volts
fnirs (hbo) Functional near-infrared spectroscopy Moles/liter
(oxyhemoglobin)
fnirs (hbr) Functional near-infrared spectroscopy Moles/liter
(deoxyhemoglobin)
emg Electromyography (EMG) Volts
eog Electrooculography (EOG) Volts
bio Miscellaneous biological channels (e.g., Arbitrary units
skin conductance)
stim stimulus (a.k.a. trigger) channels Arbitrary units
resp respiration monitoring channel Volts
chpi continuous head position indicator Teslas
(HPI) coil channels
exci Flux excitation channel
ias Internal Active Shielding data
(Triux systems only?)
syst System status channel information
(Triux systems only)
temperature Temperature Degrees Celsius
gsr Galvanic skin response Siemens
ref_meg Reference Magnetometers Teslas
dipole Dipole amplitude Amperes
gof Goodness of fit (GOF) Goodness-of-fit
cw-nirs (amp) Continuous-wave functional near-infrared Volts
spectroscopy (CW-fNIRS) (CW amplitude)
fd-nirs (ac amp) Frequency-domain near-infrared Volts
spectroscopy (FD-NIRS AC amplitude)
fd-nirs (phase) Frequency-domain near-infrared Radians
spectroscopy (FD-NIRS phase)
fnirs (od) Functional near-infrared spectroscopy Volts
(optical density)
csd Current source density Volts per square
meter
eyegaze Eye-tracking (gaze position) Arbitrary units
pupil Eye-tracking (pupil size) Arbitrary units
================= ========================================= =================
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