Effect of visual stimuli with fearful emotional cue on population receptive field estimates

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buir.advisorBoyacı, Hüseyin
dc.contributor.authorYılmaz, Cemre
dc.date.accessioned2019-08-06T11:54:52Z
dc.date.available2019-08-06T11:54:52Z
dc.date.copyright2019-07
dc.date.issued2019-07
dc.date.submitted2019-07-26
dc.departmentGraduate Program in Neuroscienceen_US
dc.descriptionCataloged from PDF version of article.en_US
dc.descriptionThesis (M.S.): Bilkent University, Department of Neuroscience, İhsan Doğramacı Bilkent University, 2019.en_US
dc.descriptionIncludes bibliographical references (leaves 55-61).en_US
dc.description.abstractPrevious studies showed that the content of stimulus might affect the results of population receptive field (pRF) estimation method [1, 2, 3]. In addition, emotion might modulate visual processing in humans by increasing BOLD activity [4, 5]. Taken together, the stimulus with emotional cue might affect the pRF parameters. To investigate the effect of emotion on visual processing, we used the population receptive field (pRF) method [6], with simultaneous wedge and ring stimuli rendered with scrambled, neutral or emotional images. Results showed that the pRF estimations were affected by the stimulus content in visual areas hV4 and V3A, as well as lower retinotopic regions: V1, V2 and V3. Moreover, we showed the emotional content of stimulus might lead to the increased pRF sizes as well as a shift in pRF centers toward the eccentric side. We argue that the increased pRF size and the pRF shift might be a result of emotional modulation of visual processing.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityby Cemre Yılmazen_US
dc.format.extentxii, 91 leaves : illustrations (some color), charts (some color) ; 30 cm.en_US
dc.identifier.itemidB158845
dc.identifier.urihttp://hdl.handle.net/11693/52301
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectNeuroimagingen_US
dc.subjectEmotional studiesen_US
dc.subjectfMRIen_US
dc.subjectPopulation receptive eld estimationen_US
dc.subjectpRFen_US
dc.titleEffect of visual stimuli with fearful emotional cue on population receptive field estimatesen_US
dc.title.alternativeKorku duygusu içeren görsel uyaranların popülasyon alıcı alan tahminleri üzerindeki etkisien_US
dc.typeThesisen_US

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