Discover datasets

nm000408
Motor imagination and execution with a chronic wireless epidural ECoG BCI (WIMAGINE), one participant with tetraplegia (Pollina et al. 2026)

iEEG

This dataset contains epidural electrocorticography (ECoG) recordings from a single participant with incomplete tetraplegia, implanted with the WIMAGINE wireless chronic implant over left primary motor and sensory cortex. The participant executed or imagined right-arm reaching and wrist-extension movements, either singly or simultaneously (one executed, one imagined). The release is a derivative, comprising 1-250 Hz band-pass filtered signals from 32 channels across eight sessions, with trial events and M1/S1 electrode labels. It supports study of how motor imagination and execution are decoupled in orthogonal neural representations.

Participants

1

Size

11.3 GB

Version

v1.0.0

Updated

Oct 8, 2026

by Leonardo Pollina et al.
nm000404
Internal-external attention switching SEEG epochs, DMN and DAN channels, 25 epilepsy patients (Hammer et al. 2024)

iEEG

Stereo-EEG epochs from 25 patients with drug-resistant epilepsy undergoing presurgical monitoring, recorded while they alternated between an external-attention visual search task and an internal-attention autobiographical question task. Epochs span -4 to +4 s around each task switch (external-to-internal or internal-to-external). They are limited to bipolar channels assigned to the default mode network and dorsal attention network by the Yeo-7 atlas. This is a BIDS repackaging of the authors' preprocessed release. The physical unit of the signal is not stated by the authors; channels are labelled µV as a curator assumption.

Participants

25

Size

5.84 GB

Version

v1.0.0

Updated

Oct 8, 2026

by Jiri Hammer
nm000402
Multi-Expert Seizure Annotation

iEEG

Stereotactic EEG recordings of 78 seizures (44 spontaneous, 34 stimulation-induced) from 29 patients with drug-resistant epilepsy, recruited at the University of Pennsylvania and the Children's Hospital of Philadelphia. Three or five board-certified epileptologists independently annotated each seizure for onset time, onset channels, and channels seizing 10 seconds after onset. The BIDS-formatted data include electrode localizations, patient demographics, and clinical outcomes. They support benchmarking of automated seizure onset and spread detection against expert performance and comparison of spontaneous and stimulation-induced seizure networks.

Participants

29

Size

7.95 GB

Version

v1.0.0

Updated

Oct 8, 2026

by William K. Ojemann et al.
nm000380
iEEG during direct electrical stimulation of orbitofrontal and other sites (Rao, Sellers et al., 2018): continuous-stimulation and single-pulse recordings

iEEG

Intracranial EEG (ECoG grids/strips and stereo-EEG depth electrodes) from 17 adults undergoing inpatient seizure monitoring, recorded before, during and after continuous 100 Hz direct electrical stimulation of the lateral orbitofrontal cortex and other sites, as well as during single-pulse electrical stimulation. The accompanying study reported that unilateral lateral OFC stimulation acutely improved mood in participants with moderate-to-severe baseline depression symptoms and suppressed low-frequency OFC power. The dataset is converted to iEEG-BIDS from the original Dryad release.

Participants

17

Size

72.8 GB

Version

v1.0.0

Updated

Oct 8, 2026

by Vikram Rao et al.
nm000379
Rapid coordination of effective learning by the human hippocampus: intracranial EEG during scene recognition with eye tracking

iEEG

Stereo-EEG recordings from six patients with medically refractory epilepsy performing a scene recognition memory task with concurrent EyeLink eye tracking. The dataset accompanies a study of how the human hippocampus rapidly coordinates effective learning, and is a lossless iEEG-BIDS re-packaging of the authors' public Zenodo release. It includes electrode MNI coordinates, behavioural arrays, eye-tracking files and the authors' analysis code in sourcedata.

Participants

6

Size

41.7 GB

Version

v1.0.0

Updated

Oct 8, 2026

by James E. Kragel et al.
nm000376
Intracranial EEG from 9 adults during a memory-guided actions experiment (preprocessed epochs, Moraresku et al.)

iEEG

Preprocessed stereo-EEG epochs from 9 patients with drug-resistant epilepsy at the Motol Epilepsy Center in Prague, recorded during a delayed memory-guided action task. Each patient has 170 bipolar-referenced epochs spanning -2 to 7.9 s around encoding onset. Recordings cover the inferior parietal lobule, ventral temporal cortex and hippocampus. The dataset is a BIDS derivative that re-packages the authors' Zenodo release without further processing.

Participants

9

Size

12.9 GB

Version

v1.0.0

Updated

Oct 8, 2026

by Sofiia Moraresku et al.
nm000369
Sensorimotor alpha and beta ECoG during movement imagery (Stolk et al. 2019, shared participants S4-S6)

iEEG

Subdural electrocorticography (ECoG) recorded at the University Medical Center Utrecht from three epilepsy patients (S4-S6) who imagined grasping a cylinder with the left or right hand. The data are the subset of participants from Stolk et al. (2019) who gave permission to share, and they support investigation of dissociated alpha and beta rhythmic activity in the human sensorimotor system. Data are released as unprocessed trial segments, stored as epoched recordings with electrode positions and author-provided atlas labels.

Participants

3

Size

663 MB

Version

v1.0.0

Updated

Oct 8, 2026

by Arjen Stolk et al.
nm000354
Arithmetic calculations measured by intracranial EEG in the human brain

iEEG

Stereo-EEG recordings from 20 patients with pharmacoresistant epilepsy performing a sequential three-operand arithmetic task during presurgical evaluation. The deposit contains preprocessed, bipolar-referenced epochs (-2 to +7 s around the first operand, 512 Hz) from 1518 bipolar channels, with MNI contact coordinates. It supports analyses of the temporal order of activations and interactions in numerical cognition. It is released as a BIDS derivative of the authors' Zenodo deposit.

Participants

20

Size

7.21 GB

Version

v1.0.0

Updated

Oct 8, 2026

by M. Kalinova et al.
nm000359
Bern-Barcelona EEG database: focal and nonfocal intracranial EEG signal pairs (Andrzejak, Schindler & Rummel 2012)

iEEG

The Bern-Barcelona database contains 7500 pairs of intracranial EEG signals (3750 focal and 3750 non-focal) from five patients with pharmacoresistant temporal lobe epilepsy. Each pair consists of two neighbouring channels, recorded for 20 s at 512 Hz and drawn from seizure-free intervals, and the pairs have been used to study nonrandomness, nonlinear dependence and nonstationarity of EEG. This BIDS release is a lossless repackaging of the original published text files into BrainVision format. Patient identity is not retained, so all runs are pooled under a single pseudo-subject.

Participants

1

Size

1.38 GB

Version

v1.0.0

Updated

Oct 8, 2026

by Ralph G. Andrzejak et al.
nm000349
Chamanzar2020: Ultra high-density EEG of interictal migraine and controls during visual, auditory stimulation and rest

EEG

Ultra high-density 128-channel EEG recorded from 18 individuals with migraine (interictal) and 21 healthy controls. Recordings include steady-state visual evoked potential (SSVEP) and steady-state auditory evoked potential (SSAEP) tasks at 4 and 6 Hz, as well as eyes-open resting state. The data support analyses of cortical coherence abnormalities in migraine.

Participants

39

Channels

130 (10-05)

Size

26.8 GB

Version

v1.0.0

Updated

Oct 8, 2026

by Alireza Chamanzar et al.