Discover datasets

This dataset comprises electroencephalography (EEG) recordings from 23 healthy college students performing a three-armed bandit gambling task with dynamically oscillating reward probabilities. The task was designed to investigate neural correlates of reward processing and reward prediction error during adaptive decision-making and task set generation. Each stimulus condition (blue, red, and green) had oscillating reinforcement probabilities (ranging from 20% to 90%) that moved in different phases across trials. Supplementary physiological recordings including corrugator EMG and skin conductance were acquired on most participants; however, data quality for these supplementary recordings was limited and they were not extensively analyzed. Data were collected in 2014 at the University of New Mexico's Cognitive Rhythms and Computation Lab.

Participants

23

Channels

64 (10-10)

Size

4.72 GB

Version

vv1.0.0

Updated

Jul 10, 2026

This high-density EEG dataset comprises recordings from 20 healthy right-handed volunteers (10 females, 10 males, mean age 23 years) collected between 2014 and 2017 during four experimental conditions: resting state, visual naming, auditory naming, and working memory tasks. The dataset contains 256-channel EEG data acquired at 1000 Hz sampling frequency and is designed to investigate dynamic functional brain network reorganization across different cognitive states.

Participants

20

Channels

257 (egi-geodesic)

Size

76.8 GB

Version

vv1.0.0

Updated

Jul 10, 2026

This high-density EEG dataset comprises resting-state and task-based recordings from 23 healthy volunteers performing visual naming and spelling tasks. Collected between 2012-2013 at Rennes University Hospital using a 256-electrode EEG system, the dataset enables investigation of dynamic functional brain network reorganization during language production and cognitive processing. The study provides insights into spatiotemporal patterns of brain connectivity during object naming and orthographic tasks.

Participants

23

Channels

256 (egi-geodesic)

Size

90.4 GB

Version

vv1.0.0

Updated

Jul 10, 2026

This dataset comprises intracranial EEG recordings and single-unit neuronal activity from the human amygdala of nine epilepsy patients during exposure to dynamic visual stimuli with aversive (fearful faces) and neutral (landscape) content. The recordings enable investigation of amygdalar responses to emotional stimuli across multiple spatial scales, from macroscopic field potentials to microscopic neuronal firing patterns. Data are provided in BIDS format with extended neuronal spike data available in NIX standard.

Participants

9

Size

297 MB

Version

vv1.0.0

Updated

Jul 10, 2026

PROBE iEEG is a dataset of intracranial electroencephalography (iEEG) recordings from patients undergoing epilepsy surgery evaluation, accompanied by pre- and post-operative MRI scans. This dataset provides raw electrophysiological data and structural neuroimaging for investigating brain function and localization of epileptogenic zones using invasive recording techniques.

Participants

6

Size

684 MB

Version

vv1.0.0

Updated

Jul 10, 2026

This dataset comprises electroencephalography (EEG) recordings from participants performing an auditory oddball task conducted at the Meditation Research Institute in Rishikesh, India. Participants completed three 13-minute sessions during which they were presented with 750 auditory stimuli consisting of standard tones (70%), oddball tones (15%), and distractor noise bursts (15%), with instructions to respond to oddball stimuli via keypad. The study was approved by the Meditation Research Institute ethical committee in India and the University of California San Diego Institutional Review Board (IRB project #090731) and represents a standardized paradigm for investigating event-related potentials and attentional processing.

Participants

13

Channels

64 (10-10)

HED

v8.0.0

Size

2.30 GB

Version

vv1.0.0

Updated

Jul 10, 2026

A mobile EEG study examining gait-related artifacts during naturalistic walking behavior. Nineteen participants completed outdoor walking tasks along two different routes, with repeated trials including a self-paced button-pressing condition. This dataset provides empirical characterization of movement-related noise in mobile neuroimaging recordings during unconstrained locomotion. This dataset is sourced from OpenNeuro (ds003039.v1.0.2) and has been republished on NEMAR.

Participants

19

Channels

64 (10-05)

Size

6.55 GB

Version

vv1.0.0

Updated

Jul 10, 2026

A multicenter retrospective study of intracranial EEG (iEEG) data from 100 subjects across 5 epilepsy centers, with 4 centers' data publicly available. The dataset includes electrocorticography (ECoG) and stereotactic EEG (SEEG) recordings organized around seizure events, with clinical annotations of seizure onset zones and surgical resection sites. This resource supports research on neural fragility as an electrophysiological marker for identifying seizure onset zones in epilepsy patients.

Participants

35

Size

10.1 GB

Version

vv1.0.0

Updated

Jul 10, 2026

This high-density EEG dataset captures brain activity during guided emotional imagery across 15 distinct emotion states. Participants listened to voice-guided scenarios designed to evoke emotions with varying valence (positive and negative) while their neural activity was recorded with eyes closed. The dataset includes preprocessed EEG data with artifact correction and high-pass filtering, providing a resource for investigating neural correlates of emotion imagination and brain state dynamics during emotional experiences.

Participants

34

Channels

224 (biosemi)

Size

36.0 GB

Version

vv1.0.0

Updated

Jul 10, 2026

This dataset comprises scalp EEG recordings from 49 participants (19 younger adults aged 20-40 years and 30 older adults aged 49-73 years) performing an interleaved dual-oddball audio-visual attention task. The study investigates age-related differences in selective attention and sensory processing by examining event-related potentials during three task conditions: focus visual, focus auditory, and attention shift between modalities. Data were collected from 33 EEG channels plus EOG and mastoid reference channels at 250 Hz sampling rate.

Participants

49

Channels

33 (10-10)

HED

v8.0.0

Size

7.67 GB

Version

vv1.0.0

Updated

Jul 10, 2026