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The impact of positive, negative and neutral stimuli in a virtual reality cognitive-motor rehabilitation task: a pilot study with stroke patients

2016Journal article Open access
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dc.contributor.authorCameirão, Mónica S.
dc.contributor.authorFaria, Ana Lúcia
dc.contributor.authorPaulino, Teresa
dc.contributor.authorAlves, Júlio
dc.contributor.authorBermúdez i Badia, Sergi
dc.date.accessioned2019-12-09T16:17:06Z
dc.date.available2019-12-09T16:17:06Z
dc.date.issued2016
dc.description.abstractBackground: Virtual Reality (VR) based methods for stroke rehabilitation have mainly focused on motor rehabilitation, but there is increasing interest in integrating motor and cognitive training to increase similarity to real-world settings. Unfortunately, more research is needed for the definition of which type of content should be used in the design of these tools. One possibility is the use of emotional stimuli, which are known to enhance attentional processes. According to the Socioemotional Selectivity Theory, as people age, the emotional salience arises for positive and neutral, but not for negative stimuli. Methods: For this study we developed a cognitive-motor VR task involving attention and short-term memory, and we investigated the impact of using emotional images of varying valence. The task consisted of finding a target image, shown for only two seconds, among fourteen neutral distractors, and selecting it through arm movements. After performing the VR task, a recall task took place and the patients had to identify the target images among a valence-matched number of distractors. Ten stroke patients participated in a within-subjects experiment with three conditions based on the valence of the images: positive, negative and neutral. Eye movements were recorded during VR task performance with an eye tracking system. Results: Our results show decreased attention for negative stimuli in the VR task performance when compared to neutral stimuli. The recall task shows significantly more wrongly identified images (false memories) for negative stimuli than for neutral. Regression and correlation analyses with the Montreal Cognitive Assessment and the Geriatric Depression Scale revealed differential effects of cognitive function and depressive symptomatology in the encoding and recall of positive, negative and neutral images. Further, eye movement data shows reduced search patterns for wrongly selected stimuli containing emotional content. Conclusions: The results of this study suggest that it is feasible to use emotional content in a VR based cognitivemotor task for attention and memory training after stroke. Stroke survivors showed less attention towards negative information, exhibiting reduced visual search patterns and more false memories. We have also shown that the use of emotional stimuli in a VR task can provide additional information regarding patient’s mood and cognitive status.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCameirão, M. S., Faria, A. L., Paulino, T., Alves, J., & Bermúdez i Badia, S. (2016). The impact of positive, negative and neutral stimuli in a virtual reality cognitive-motor rehabilitation task: a pilot study with stroke patients. Journal of neuroengineering and rehabilitation, 13(1), 70.pt_PT
dc.identifier.doi10.1186/s12984-016-0175-0pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/2635
dc.language.isoengpt_PT
dc.publisherBMCpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectEmotional stimulipt_PT
dc.subjectStrokept_PT
dc.subjectVirtual realitypt_PT
dc.subjectCognitive and motor rehabilitationpt_PT
dc.subjectValencept_PT
dc.subjectEye trackingpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleThe impact of positive, negative and neutral stimuli in a virtual reality cognitive-motor rehabilitation task: a pilot study with stroke patientspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEEA%2F50009%2F2013/PT
oaire.citation.titleJournal of NeuroEngineering and Rehabilitationpt_PT
oaire.citation.volume13(1)pt_PT
oaire.fundingStream5876
person.familyNameCameirão
person.familyNamedos Santos Faria
person.familyNamePaulino
person.familyNameBermúdez i Badia
person.givenNameMónica
person.givenNameAna Lúcia
person.givenNameTeresa
person.givenNameSergi
person.identifierhttps://scholar.google.pt/citations?user=nkIo3MQAAAAJ&hl=en
person.identifier239789
person.identifier.ciencia-id0A12-4F21-0CC2
person.identifier.ciencia-idF617-BFEE-77E0
person.identifier.ciencia-id811B-FF50-B05A
person.identifier.ciencia-idCA17-5E88-2B37
person.identifier.orcid0000-0002-5352-0128
person.identifier.orcid0000-0001-5904-0304
person.identifier.orcid0000-0003-4292-8758
person.identifier.orcid0000-0003-4452-0414
person.identifier.ridC-8675-2018
person.identifier.ridC-8681-2018
person.identifier.scopus-author-id21740694600
person.identifier.scopus-author-id6506360007
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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