Anytime collaborative brain–computer interfaces for enhancing perceptual group decision-making

Saugat Bhattacharyya, Davide Valeriani, Caterina Cinel, Luca Citi, Riccardo Poli

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)
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In this paper we present, and test in two realistic environments, collaborative Brain-Computer Interfaces (cBCIs) that can significantly increase both the speed and the accuracy of perceptual group decision-making. The key distinguishing features of this work are: (1) our cBCIs combine behavioural, physiological and neural data in such a way as to be able to provide a group decision at any time after the quickest team member casts their vote, but the quality of a cBCI-assisted decision improves monotonically the longer the group decision can wait; (2) we apply our cBCIs to two realistic scenarios of military relevance (patrolling a dark corridor and manning an outpost at night where users need to identify any unidentified characters that appear) in which decisions are based on information conveyed through video feeds; and (3) our cBCIs exploit Event-Related Potentials (ERPs) elicited in brain activity by the appearance of potential threats but, uniquely, the appearance time is estimated automatically by the system (rather than being unrealistically provided to it). As a result of these elements, in the two test environments, groups assisted by our cBCIs make both more accurate and faster decisions than when individual decisions are integrated in more traditional manners.
Original languageEnglish
Article number17008
JournalScientific Reports
Early online date20 Aug 2021
Publication statusPublished online - 20 Aug 2021

Bibliographical note

Funding Information:
The authors acknowledge support of the UK Defence Science and Technology Laboratory (Dstl) and Engineering and Physical Research Council (EPSRC) under Grant No. EP/P009204/1. This study is part of a collaboration between US DoD, UK MOD and UK EPSRC under Multidisciplinary University Research Initiative (MURI) and Bilateral Academic Research Initiative (BARI).

Publisher Copyright:
© 2021, The Author(s).


  • Brain-Computer Interface
  • Group decision making
  • perceptual decision making


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