diff --git a/src/modality-specific-files/motion.md b/src/modality-specific-files/motion.md index 7e47e98e07..9fa8d8ffad 100644 --- a/src/modality-specific-files/motion.md +++ b/src/modality-specific-files/motion.md @@ -169,18 +169,18 @@ the axial components that corresponds to the three spatial axes MUST be specifie Restricted keyword list for column `type` in alphabetic order. Note that upper-case is REQUIRED: -| **Keyword** | **Description** | -| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -| ACCEL | Accelerometer channel, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y, or z). | -| ANGACCEL | Angular acceleration channel, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y, or z). | -| GYRO | Gyrometer channel, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y, or z). | -| JNTANG | Joint angle channel between two fixed axis belonging to two bodyparts. Angle SHOULD be defined between proximal and distal bodypart in deg. | -| LATENCY | Latency of samples in seconds from recording onset (see `acq_time` column of the respective `*_scans.tsv` file). MUST be in form of `s[.000000]`, where `s` reflects whole seconds, and `.000000` reflects OPTIONAL fractional seconds. | -| MAGN | Magnetic field strength, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y or z). | -| MISC | Miscellaneous channels. | -| ORNT | Orientation channel, one channel for each spatial axis or quaternion component. Column component for the axis or quaternion label MUST be added to the `*_channels.tsv` file (`x`, `y`, `z`, `quat_x`, `quat_y`, `quat_z`, or `quat_w`). | -| POS | Position in space, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y or z). | -| VEL | Velocity, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y or z). | +| **Keyword** | **Description** | +| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | +| ACCEL | Accelerometer channel, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y, or z). | +| ANGACCEL | Angular acceleration channel, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y, or z). | +| GYRO | Gyrometer channel, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y, or z). | +| JNTANG | Joint angle channel between two fixed axis belonging to two bodyparts. Angle SHOULD be defined between proximal and distal bodypart in deg. | +| LATENCY | Latency of samples in seconds from recording onset (see `acq_time` column of the respective `*_scans.tsv` file). MUST be in form of `s[.000000]`, where `s` reflects whole seconds, and `.000000` reflects OPTIONAL fractional seconds. | +| MAGN | Magnetic field strength, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y or z). | +| MISC | Miscellaneous channels. | +| ORNT | Orientation channel, one channel for each spatial axis or quaternion component. Column component for the axis or quaternion label MUST be added to the `*_channels.tsv` file (`x`, `y`, `z`, `quat_x`, `quat_y`, `quat_z`, or `quat_w`). | +| POS | Position in space, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y or z). | +| VEL | Velocity, one channel for each spatial axis. Column component for the axis MUST be added to the `*_channels.tsv` file (x, y or z). | ### Example `*_channels.tsv` @@ -215,7 +215,6 @@ field to describe the named field using [objects][object] with following fields. | SpatialAxes | RECOMMENDED | [string][] | The coordinate system in which the motion data are to be interpreted. A sequence of characters from the set `{'A', 'P', 'L', 'R', 'S', 'I', '_'}` indicating the direction of each axis. For example `"ARS"` indicates positive values in the X, Y, Z axes are respectively anterior, right, and superior of the origin, while `"PLI"` indicates positive values are posterior, left, and inferior of the origin. The `"_"` character may be used for unused axes. | | Description | OPTIONAL, but RECOMMENDED if no other keys are present | [string][] | A description of the `reference_frame` | - ### Example of `*_channels.json` ```json