Modality switching and performance in a thought and speech controlled computer game

Hayrettin Gürkök, Gido Hakvoort, Mannes Poel

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    13 Citations (Scopus)
    11 Downloads (Pure)


    Providing multiple modalities to users is known to improve the overall performance of an interface. Weakness of one modality can be overcome by the strength of another one. Moreover, with respect to their abilities, users can choose between the modalities to use the one that is the best for them. In this paper we explored whether this holds for direct control of a computer game which can be played using a brain-computer interface (BCI) and an automatic speech recogniser (ASR). Participants played the games in unimodal mode (i.e. ASR-only and BCI-only) and multimodal mode where they could switch between the two modalities. The majority of the participants switched modality during the multimodal game but for the most of the time they stayed in ASR control. Therefore multimodality did not provide a significant performance improvement over unimodal control in our particular setup. We also investigated the factors which influence modality switching. We found that performance and peformance-related factors were prominently effective in modality switching.
    Original languageUndefined
    Title of host publicationProceedings of the 13th International Conference on Multimodal Interfaces (ICMI 2011)
    EditorsHervé Bourlard, Thomas S. Huang, Enrique Vidal, Daniel Gatica-Perez, Louis-Philippe Morency, Nicu Sebe
    Place of PublicationNew York
    PublisherAssociation for Computing Machinery
    Number of pages8
    ISBN (Print)978-1-4503-0641-6
    Publication statusPublished - Nov 2011
    Event13th International Conference on Multimodal Interfaces, ICMI 2011 - Alicante, Spain
    Duration: 14 Nov 201118 Nov 2011
    Conference number: 13

    Publication series



    Conference13th International Conference on Multimodal Interfaces, ICMI 2011
    Abbreviated titleICMI


    • IR-78612
    • METIS-281572
    • EWI-20821
    • HMI-CI: Computational Intelligence
    • HMI-SLT: Speech and Language Technology

    Cite this