moabb.datasets.BNCI2015_009#

class moabb.datasets.BNCI2015_009(subjects=None, sessions=None)[source]#

BNCI 2015-009 AMUSE (Auditory Multi-class Spatial ERP) dataset.

Dataset summary

#Subj

21

#Chan

62

#Trials / class

10071 NT / 2014 T

Trials length

0.8 s

Freq

1000 Hz

#Sessions

2

Participants

  • Population: Healthy

  • Age: 30.3 (range: 22-55) years

  • Handedness: unknown

  • BCI experience: mixed

Equipment

  • Amplifier: Brain Products 128-channel amplifier

  • Electrodes: Ag/AgCl electrodes

  • Montage: 10-20

  • Reference: nose

Preprocessing

  • Data state: filtered

  • Bandpass filter: 0.1-250 Hz

  • Steps: bandpass filter, notch filter, downsampling, artifact rejection

  • Re-reference: nose

  • Notes: Raw data acquired at 1000 Hz. For visual inspection: low-pass filtered with order 8 Chebyshev II filter (30 Hz pass, 42 Hz stop, 50 dB damping) applied forward and backward to minimize phase shifts, then downsampled to 100 Hz. For classification: same filter applied causally (forward only) for online portability. Artifact rejection used simple threshold method: subtrials with deflection >70 µV over ocular channels compared to baseline were rejected.

Data Access

  • DOI: 10.1371/journal.pone.0009813

  • Repository: BNCI Horizon

Experimental Protocol

  • Paradigm: p300

  • Task type: oddball

  • Tasks: spatial_auditory_oddball

  • Feedback: none

  • Stimulus: auditory_spatial

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Dataset summary

Name

#Subj

#Chan

#Trials/class

Trials length

Sampling Rate

#Sessions

BNCI2015_009

21

62

Variable T/NT

0.8s

1000Hz

varies

Dataset from [1].

Dataset Description

This dataset contains EEG recordings from 21 subjects performing an auditory spatial attention task for brain-computer interface (BCI) control. The AMUSE (Auditory Multi-class Spatial ERP) paradigm uses auditory stimuli from different spatial locations to elicit P300-like event-related potentials.

Subjects were presented with auditory stimuli (75 ms bandpass filtered white noise, 150-8000 Hz) from 8 loudspeakers arranged at ear height in a circle around the subject, with 45 degree spacing at approximately 1 meter distance. By attending to stimuli from a specific spatial location, subjects could select one of multiple targets, enabling multi-class BCI control without relying on visual stimulation.

Participants

  • 21 healthy subjects

  • Location: Berlin Institute of Technology, Germany

Recording Details

  • Equipment: 128-channel Brain Products amplifier

  • Channels: 60 EEG + 2 EOG (62 total)

  • Electrode type: Ag/AgCl electrodes

  • Sampling rate: 1000 Hz (downsampled to 100 Hz for analysis in original paper)

  • Auditory stimuli: 75 ms bandpass filtered white noise (150-8000 Hz), 58 dB

  • Speaker setup: 8 speakers at ear height, 45 degree spacing, ~1 meter distance

Data Organization

Event Codes

  • Target (1): Attended stimulus

  • NonTarget (2): Unattended stimulus

References

[1]

Schreuder, M., Rost, T., & Tangermann, M. (2011). Listen, you are writing! Speeding up online spelling with a dynamic auditory BCI. Frontiers in neuroscience, 5, 112. https://doi.org/10.3389/fnins.2011.00112

Notes

Added in version 1.2.0.

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