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dc.contributor.authorJennings, BJ
dc.contributor.authorSchmidtmann, G
dc.contributor.authorWehbé, F
dc.contributor.authorKingdom, FAA
dc.contributor.authorFarivar, R
dc.date.accessioned2019-06-17T18:38:34Z
dc.date.issued2019-08
dc.identifier.issn0042-6989
dc.identifier.issn1878-5646
dc.identifier.urihttp://hdl.handle.net/10026.1/14324
dc.description.abstract

Mild traumatic brain injuries (mTBI) frequently lead to the impairment of visual functions including blurred and/or distorted vision, due to the disruption of visual cortical mechanisms. Previous mTBI studies have focused on specific aspects of visual processing, e.g., stereopsis, using artificial, low-level, stimuli (e.g., Gaussian patches and gratings). In the current study we investigated high-level visual processing by employing images of real world natural scenes as our stimuli. Both an mTBI group and control group composed of healthy observers were tasked with detecting sinusoidal distortions added to the natural scene stimuli as a function of the distorting sinusoid's spatial frequency. It was found that the mTBI group were equally as sensitive to high frequency distortions as the control group. However, sensitivity decreased more rapidly with decreasing distortion frequency in the mTBI group relative to the controls. These data reflect a deficit in the mTBI group to spatially integrate over larger regions of the scene.

dc.format.extent12-17
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoen
dc.publisherElsevier
dc.subjectMild traumatic brain injury (mTBI)
dc.subjectNatural scenes
dc.subjectSpatial distortions
dc.titleDetection of distortions in images of natural scenes in mild traumatic brain injury patients
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/31129288
plymouth.volume161
plymouth.publication-statusPublished
plymouth.journalVision Research
dc.identifier.doi10.1016/j.visres.2019.05.004
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Health
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA03 Allied Health Professions, Dentistry, Nursing and Pharmacy
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Institute of Health and Community
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeEngland
dcterms.dateAccepted2019-05-12
dc.rights.embargodate2020-6-11
dc.identifier.eissn1878-5646
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1016/j.visres.2019.05.004
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2019-08
rioxxterms.typeJournal Article/Review


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