Cortical Responses Evoked by Wrist Joint Manipulation

Cortical Responses Evoked by Wrist Joint Manipulation setup and overview. (figure from Vlaar et al., 2018).

This dataset features the response in the human cortex to robotic manipulations of the wrist joint. The wrist joint manipulations are encoded by sensory organs in the periphery and transmitted via the spinal cord to the brain. The evoked cortical responses can be measured on the scalp using electroencephalography (EEG). Since the cortical responses to joint manipulations are associated with sensory processing of external input, modeling this response could be useful to detect and monitor abnormal sensory processing due to diseases, such as stroke, spinal cord injury and Parkinson’s disease. However, several challenges are noted in modeling the cortical response recorded using EEG. The sensory organs and neurons in the nervous system are highly nonlinear and exhibit complex dynamics. Also, the signal-to-noise ratio of EEG is poor, ranging from -10 to -40 dB.

The provided data is described in this link. The provided datasets are available for download in the .mat file format in three versions:

  1. Small (<1Mb): containing the averaged input and output signals (ICA component with highest SNR). It is advised to start with this dataset. The data is available for download as supplementary material with the article of Vlaar et al. 2018 at IEEE through this link or through this website here.

  2. Medium (around 500Mb): Similar data as 1, but the data is not averaged over the periods and sampled at the original sample rate of 2048 Hz. The data is available for download here.

  3. Large (around 60Gb): The data is only filtered and segmented in 1 s periods. The data includes all 126 recorded EEG channels at the original sample frequency. The ICA matrix to convert the channels to sources is included. This data is the base for the above datasets and is needed to replicate the results of Vlaar et al. 2017. The data is available for download at the 4TU Centre for Research Data ( and accessible using the following Digital Object Identifier (DOI): 10.4121/uuid:176d8f78-d9fd-491e-90e7-9370e249b701.

The slides of the presentation used to introduce this dataset are available here.

Special thanks to Alfred Schouten and his co-workers for making this dataset available.


Please refer to the Cortical Response Evoked by Wrist Joint Manipulation dataset as:

M.P. Vlaar, G. Birpoutsoukis, J. Lataire, M. Schoukens, A.C. Schouten, J. Schoukens, F.C.T. van der Helm FCT, Modeling the Nonlinear Cortical Response in EEG Evoked by Wrist Joint Manipulation, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 26, pp. 205-305, 2018, doi: 10.1109/TNSRE.2017.2751650.

M.P. Vlaar, T. Solis-Escalante, A.N. Vardy, F.C.T. van der Helm, A.C. Schouten, Quantifying Nonlinear Contributions to Cortical Responses Evoked by Continuous Wrist Manipulation, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 25, pp. 481-491, 2017, doi: 10.1109/TNSRE.2016.2579118.