Simultaneous cortico-spinal fMRI (CoSpine) Motor-dataset

Version: v1.0.0
Date: 2025-06-30
BIDS-compliant

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1. Dataset Overview

This is the first open-access, BIDS-compliant cortico-spinal task-based fMRI dataset using voluntary motor tasks. It enables exploration of cortico-spinal dynamics during repetitive hand movements by providing simultaneous brain-and-spinal fMRI, physiological recordings, and task structure.

• Task: Voluntary hand grasping (left and right)
• Modalities: fMRI (task-motor BOLD), structural MRI (T1w), EPI-based field maps (reverse phase encoding), physiological signals (pulse & respiration), events/behavioural logs
• Subjects: 22 healthy participants

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2. Experimental Design

• Task: Participants performed hand grasping using a 6.5 cm diameter dynamometer.
• Cueing: Auditory cues presented via MRI-compatible headphones.
• Design: 12 blocks in total (6 for each hand). Each block consisted of 8 grasps at 1 Hz.
• ITI: Randomized between 16–20 seconds.
• Software: Stimuli were presented and synchronized using E-Prime 2.0 on Windows.

Event timings (onset, duration) and trial types (motorL, motorR) are documented in each *_events.tsv.

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3. Data Acquisition

• Scanner: 3T Siemens Prisma (Erlangen, Germany)
• Head coil: Standard 64-channel head-neck coil
• fMRI protocol: Simultaneous acquisition of brain and spinal cord
• Physiology: Pulse and respiration recorded during all task runs

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4. Dataset Structure

4. Dataset Structure

dataset/
├── dataset_description.json
├── README
├── task-motor_events.json
├── participants.tsv + .json
├── sub-01/
│   ├── anat/
│   │   ├── sub-01_T1w.nii.gz
│   │   └── sub-01_T1w.json
│   ├── fmap/
│   │   ├── sub-01_dir-AP_epi.nii.gz
│   │   ├── sub-01_dir-AP_epi.json
│   │   ├── sub-01_dir-PA_epi.nii.gz
│   │   └── sub-01_dir-PA_epi.json
│   └── func/
│       ├── sub-01_task-motorL_bold.nii.gz
│       ├── sub-01_task-motorL_bold.json
│       ├── sub-01_task-motorL_events.tsv
│       ├── sub-01_task-motorL_recording-pulse_physio.tsv.gz
│       ├── sub-01_task-motorL_recording-pulse_physio.json
│       ├── sub-01_task-motorL_recording-respiratory_physio.tsv.gz
│       ├── sub-01_task-motorL_recording-respiratory_physio.json
│       ├── sub-01_task-motorR_bold.nii.gz
│       ├── sub-01_task-motorR_bold.json
│       ├── sub-01_task-motorR_events.tsv
│       ├── sub-01_task-motorR_recording-pulse_physio.tsv.gz
│       ├── sub-01_task-motorR_recording-pulse_physio.json
│       ├── sub-01_task-motorR_recording-respiratory_physio.tsv.gz
│       └── sub-01_task-motorR_recording-respiratory_physio.json

5 Quality control / preprocessing

• Structural T1-weighted images have been defaced for privacy.
• Preprocessed data is placed in derivatives/preprocessed/.

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Contact

Zhaoxing Wei (zhaoxing.wei@dartmouth.edu)
Yazhuo Kong (kongyz@psych.ac.cn)