High density human neuroimaging data from healthy controls and patients with Essential Tremor engaged in an upper-limb reaching task

This dataset consists of human neuroimaging data recorded from human cohorts of healthy controls and patients diagnosed with Essential Tremor (ET). Participants were recorded in an experimental paradigm consisting of an upper limb, centre-out reaching task.High density EEG (128 channels; HD-EEG). This data was recorded using a Brain Products DC amplifier and gel based active electrodes mounted in the standard 10-10 system with an  actiCAP. 11 healthy controls and 12 patients with ET.Optically pumped magnetoencephalography (OP-MEG). This data was recorded using combinations of 2nd and 3rd generation QuSpin sensors (dual- and tri-axial sensors, respectively) mounted in rigid 3D-printed casts custom-built to each participant's scalp shape determined from structural magnetic resonance images (MRIs). 5 healthy controls and 4 patients with ET.The complete dataset comprises:Raw OP-MEG data provided in The Brain Imaging Data Structure (BIDS) formatRaw HD-EEG data provided in BrainVision formats: ‘.eeg’; ’.vhdr’; ’.vmrk’.Triaxial accelerometry recorded as auxiliary channels in the raw data.Task markers provided as DC step signal recorded as auxiliary channels in the raw data.Task related information – condition ordering, screen positions, etc. in ‘.csv’Structural neuroimaging- MRIs of brain anatomy. 3D FLASH protocol supplied in NIfTI ‘.nii’ format.3D motion capture data supplied as Motive ‘.tak’ data.Processed data is provided in the Fieldtrip Data structure and saved as MATLAB ‘.mat’ files, and available across different levels of analysis indicated by the suffix:‘*_rawdata’ – imported data.‘*_pp’ – epoched and preprocessed.‘*_pp_ar’ – artefact rejected.'*_freq' – frequency domain representation.'*_VC' – projected as virtual channels in the source domain.