Print Email Facebook Twitter Effects of four types of non-obtrusive feedback on computer behaviour, task performance and comfort Title Effects of four types of non-obtrusive feedback on computer behaviour, task performance and comfort Author de Korte, E.M. Huysmans, M.A. de Jong, A.M. van de Ven, J.G.M. Ruijsendaal, M. Publication year 2012 Abstract This study investigated the effects of non-obtrusive feedback on continuous lifted hand/finger behaviour, task performance and comfort. In an experiment with 24 participants the effects of two visual and two tactile feedback signals were compared to a no-feedback condition in a computer task. Results from the objective measures showed that all types of feedback were equally effective to reduce lifted hand/finger behaviour (effectiveness) compared to absence of feedback, while task performance was not affected (efficiency). In contrast to objective measures, subjective user experience was significantly different for the four types of feedback signals. Continuous tactile feedback appeared to be the best signal; not only the effectiveness and efficiency were rated reasonable, it also scored best on perceived match between signal and required action. This study shows the importance of including user experiences when investigating usability of feedback signals. Non-obtrusive feedback embedded in products and environments may successfully be used to support office workers to adopt healthy, productive and comfortable working behaviour. © 2011 Elsevier Ltd and The Ergonomics Society. Subject OrganisationSP - Sustainable ProductivityBSS - Behavioural and Societal SciencesWorkplaceInformation SocietyBehaviourComfortFeedbackHuman computer interactionTask performanceUsabilityBehaviourComfortHuman-computerTask performanceUsabilityOffice buildingsHuman computer interactionadultarticlebehaviorcomputer systemcontrolled studyfemalehumanhuman computer interactioninformation processingmaleoffice workersignal processingtactile feedbacktask performancevisual feedbackwork capacity To reference this document use: http://resolver.tudelft.nl/uuid:3e1cad57-4131-495c-a9d2-79dfea90f499 TNO identifier 442917 ISSN 0003-6870 Source Applied Ergonomics, 43 (2), 344-353 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.