Lateralized readiness potential (LRP) classification

Name: lrp
Category: brain-computer interfacing
Dataset: Kappenman2020Lrp (ErpCore2021_LRP)
Objective: Binary classification
Split: Leave-subjects-out

Usage

neuralbench eeg lrp
Show config.yaml
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the license found in the
# LICENSE file in the root directory of this source tree.

data:
  study:
    source:
      name: Kappenman2021ErpLrp
    split:
      name: SklearnSplit
      split_by: subject
      valid_split_ratio: 0.2
      test_split_ratio: 0.2
      valid_random_state: 33
      test_random_state: 33
  neuro.baseline: [0.0, 0.2]
  target:
    =replace=: true
    name: LabelEncoder
    event_types: Stimulus
    event_field: description
    return_one_hot: true
    aggregation: trigger
  trigger_event_type: Stimulus
  start: -0.2
  duration: 1.0
  summary_columns: [description]
compute_class_weights: true
brain_model_output_size: &brain_model_output_size 2
trainer_config.monitor: val/bal_acc
trainer_config.mode: max
trainer_config.patience: 10
loss:
  name: CrossEntropyLoss
  kwargs:
    label_smoothing: 0.1
metrics: !!python/object/apply:neuralbench.defaults.metrics.get_classification_metric_configs
  - *brain_model_output_size

Description

The lateralized readiness potential (LRP) classification task involves distinguishing left- vs. right-hand responses from EEG recordings. The LRP is an asymmetric motor preparation component that develops before a voluntary hand movement, reflecting the differential activation of contralateral motor cortex. We use the Kappenman2020Lrp dataset [Kappenman2020Lrp], part of the ERP CORE (Compendium of Open Resources and Experiments), which contains EEG data from 40 subjects performing a flanker task requiring left- or right-hand button presses.

References

[Kappenman2020Lrp]

Kappenman, E. S., et al. “ERP CORE: An open resource for human event-related potential research.” NeuroImage 225 (2021): 117465.