Evaluation of a Compact Hybrid Brain-Computer Interface System

Jaeyoung Shin, Klaus Robert Müller, Christoph H. Schmitz, Do Won Kim, Han Jeong Hwang

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


We realized a compact hybrid brain-computer interface (BCI) system by integrating a portable near-infrared spectroscopy (NIRS) device with an economical electroencephalography (EEG) system. The NIRS array was located on the subjects' forehead, covering the prefrontal area. The EEG electrodes were distributed over the frontal, motor/temporal, and parietal areas. The experimental paradigm involved a Stroop word-picture matching test in combination with mental arithmetic (MA) and baseline (BL) tasks, in which the subjects were asked to perform either MA or BL in response to congruent or incongruent conditions, respectively. We compared the classification accuracies of each of the modalities (NIRS or EEG) with that of the hybrid system. We showed that the hybrid system outperforms the unimodal EEG and NIRS systems by 6.2% and 2.5%, respectively. Since the proposed hybrid system is based on portable platforms, it is not confined to a laboratory environment and has the potential to be used in real-life situations, such as in neurorehabilitation.

Original languageEnglish
Article number6820482
JournalBioMed Research International
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)


Dive into the research topics of 'Evaluation of a Compact Hybrid Brain-Computer Interface System'. Together they form a unique fingerprint.

Cite this