Research Repository

CES-530: Collaborative Brain-Computer Interface for Aiding Decision-making

Poli, R and Valeriani, D and Cinel, C (2014) CES-530: Collaborative Brain-Computer Interface for Aiding Decision-making. UNSPECIFIED. CES-530, University of Essex, Colchester.

[img]
Preview
Text
ces-530.pdf

Download (2MB) | Preview

Abstract

We look at the possibility of integrating the percepts from multiple non-communicating observers as a means of achieving better joint perception and better group decisions. Our approach involves the combination of a brain-computer interface with human behavioural responses. To test ideas in controlled conditions, we asked observers to perform a simple matching task involving the rapid sequential presentation of pairs of visual patterns and the subsequent decision as whether the two patterns in a pair were the same or different. We recorded the response times of observers as well as a neural feature which predicts incorrect decisions and, thus, indirectly indicates the confidence of the decisions made by the observers. We then built a composite neuro-behavioural feature which optimally combines the two measures. For group decisions, we uses a majority rule and three rules which weigh the decisions of each observer based on response times and our neural and neuro-behavioural features. Results indicate that the integration of behavioural responses and neural features can significantly improve accuracy when compared with the majority rule. An analysis of event-related potentials indicates that substantial differences are present in the proximity of the response for correct and incorrect trials, further corroborating the idea of using hybrids of brain-computer interfaces and traditional strategies for improving decision making.

Item Type: Monograph (UNSPECIFIED)
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Julie Poole
Date Deposited: 14 Aug 2014 09:04
Last Modified: 18 Dec 2017 15:15
URI: http://repository.essex.ac.uk/id/eprint/9754

Actions (login required)

View Item View Item