Show simple item record

dc.contributor.authorShepherd, Alex J
dc.contributor.authorBeaumont, Heidi M
dc.contributor.authorHine, Trevor J
dc.date.accessioned2017-05-03T13:07:24Z
dc.date.available2017-05-03T13:07:24Z
dc.date.issued2012
dc.date.modified2013-06-06T23:06:47Z
dc.identifier.issn0333-1024
dc.identifier.doi10.1177/0333102412445222
dc.identifier.urihttp://hdl.handle.net/10072/47508
dc.description.abstractBackground: There are conflicting reports concerning the ability of people with migraine to detect and discriminate visual motion. Previous studies used different displays and none adequately assessed other parameters that could affect performance, such as those that could indicate precortical dysfunction. Methods: Motion-direction detection, discrimination and relative motion thresholds were compared from participants with and without migraine. Potentially relevant visual covariates were included (contrast sensitivity; acuity; stereopsis; visual discomfort, stress, triggers; dyslexia). Results: For each task, migraine participants were less accurate than a control group and had impaired contrast sensitivity, greater visual discomfort, visual stress and visual triggers. Only contrast sensitivity correlated with performance on each motion task; it also mediated performance. Conclusions: Impaired performance on certain motion tasks can be attributed to impaired contrast sensitivity early in the visual system rather than a deficit in cortical motion processing per se. There were, however, additional differences for global and relative motion thresholds embedded in noise, suggesting changes in extrastriate cortex in migraine. Tasks to study the effects of noise on performance at different levels of the visual system and across modalities are recommended. A battery of standard visual tests should be included in any future work on the visual system and migraine.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherSage
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom554
dc.relation.ispartofpageto570
dc.relation.ispartofissue7
dc.relation.ispartofjournalCephalalgia
dc.relation.ispartofvolume32
dc.rights.retentionY
dc.subject.fieldofresearchClinical sciences
dc.subject.fieldofresearchNeurosciences
dc.subject.fieldofresearchSensory systems
dc.subject.fieldofresearchOther psychology not elsewhere classified
dc.subject.fieldofresearchcode3202
dc.subject.fieldofresearchcode3209
dc.subject.fieldofresearchcode320907
dc.subject.fieldofresearchcode529999
dc.titleMotion processing deficits in migraine are related to contrast sensitivity
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2012
gro.hasfulltextNo Full Text
gro.griffith.authorHine, Trevor J.
gro.griffith.authorBeaumont, Heidi M.


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record