{"id":6019,"date":"2026-10-19T09:48:22","date_gmt":"2026-10-19T09:48:22","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-salfraedi-manje-brinkhuis\/"},"modified":"2026-10-19T09:48:22","modified_gmt":"2026-10-19T09:48:22","slug":"doktorsvorn-i-salfraedi-manje-brinkhuis","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-salfraedi-manje-brinkhuis\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed S\u00e1lfr\u00e6\u00f0i – Manje Brinkhuis"},"content":{"rendered":"
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Fimmtudaginn 17. jan\u00faar ver Manje Brinkhuis doktorsritger\u00f0 s\u00edna \u00ed s\u00e1lfr\u00e6\u00f0i vi\u00f0 S\u00e1lfr\u00e6\u00f0ideild H\u00e1sk\u00f3la \u00cdslands. Ritger\u00f0in ber heiti\u00f0 Valbundin sj\u00f3nskynjun: Sj\u00f3nleit og skynjun tv\u00edr\u00e6\u00f0ra \u00e1reita byggja \u00e1 \u00f3l\u00edkum ferlum. <\/strong>Commonalitites and differences between attentional priming\u00a0 and bistable perception.<\/strong><\/p>\n

Andm\u00e6lendur eru dr. Alexander Pashtukov, pr\u00f3fessor vi\u00f0 Otto-Friedrich-h\u00e1sk\u00f3lann \u00ed Bamberg, og dr. Sveinn H\u00e1kon Har\u00f0arson, lektor vi\u00f0 L\u00edfe\u00f0lisfr\u00e6\u00f0istofnun H\u00e1sk\u00f3la \u00cdslands.<\/p>\n

Umsj\u00f3narkennari og lei\u00f0beinandi var dr. \u00c1rni Kristj\u00e1nsson, pr\u00f3fessor vi\u00f0 S\u00e1lfr\u00e6\u00f0ideild H\u00e1sk\u00f3la \u00cdslands. Auk hans sat \u00a0Jan W. Brascamp, d\u00f3sent vi\u00f0 Michigan State University \u00ed doktorsnefnd.<\/p>\n

Dan\u00edel \u00d3lason, pr\u00f3fessor og forseti \u00a0S\u00e1lfr\u00e6\u00f0ideildar, stj\u00f3rnar ath\u00f6fninni sem fer fram \u00ed H\u00e1t\u00ed\u00f0asal H\u00e1sk\u00f3la \u00cdslands og hefst kl. 13:00\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/p>\n

\u00c1grip af ranns\u00f3kn <\/strong><\/p>\n

Sv\u00e6\u00f0i \u00ed framheila og hvirfilbla\u00f0i heila hafa oft veri\u00f0 tengd athygli, til d\u00e6mis vali \u00e1reita \u00ed sj\u00f3nleit, sem og \u00feegar sj\u00f3nkerfi\u00f0 velur milli tveggja t\u00falkana \u00e1 tv\u00edr\u00e6\u00f0um \u00e1reitum. \u00de\u00f3tt athygli s\u00e9 talin gegna lykilhlutverki \u00ed sj\u00f3nleit og t\u00falkun \u00e1 \u00e1reitum \u00ed sj\u00f3nsvi\u00f0i, er engin heildarskilgreining \u00e1 athygli til innan sj\u00f3nskynjunarv\u00edsindanna. Margir v\u00edsindamenn hafa sett fram tilg\u00e1tur um a\u00f0 mi\u00f0l\u00e6g athyglikerfi b\u00fai a\u00f0 baki verkan athyglinnar \u00ed sj\u00f3nskynjun. \u00deannig g\u00e6ti, sem d\u00e6mi, virkni athyglinnar \u00ed sj\u00f3nleitarverkefnum og vi\u00f0 t\u00falkun tv\u00edr\u00e6\u00f0ra \u00e1reita veri\u00f0 s\u00fa sama. Til stu\u00f0nings \u00feessu er nefnt a\u00f0 athyglisvirkni \u00ed heila s\u00e9 tengd b\u00e6\u00f0i \u00fev\u00ed \u00feegar vi\u00f0 skiptum milli tveggja t\u00falkana \u00e1 tv\u00edr\u00e6\u00f0um \u00e1reitum og \u00feegar vi\u00f0 leitum a\u00f0 tilteknu \u00e1reiti \u00ed sj\u00f3nleitarverkefnum, og a\u00f0 \u00feessi virkni hafi bein \u00e1hrif \u00e1 sj\u00f3nleit og t\u00falkun \u00e1reita. \u00cd doktorsverkefninu var r\u00e1\u00f0ist til atl\u00f6gu vi\u00f0 \u00feessar spurningar til \u00feess a\u00f0 varpa betra lj\u00f3si \u00e1 verkan sj\u00f3nr\u00e6nnar athygli. Rannsaka\u00f0ir voru t\u00edmaferlar \u00fdfingar\u00e1hrifa \u00ed sj\u00f3nskynjun sem reyndust hafa beinar tengingar vi\u00f0 t\u00edmaferla athyglisvirkni \u00e1 \u00ed athygliskerfum heilans (m\u00e6lt me\u00f0 starfr\u00e6nni segul\u00f3mmyndun). \u00deetta eru sterk r\u00f6k fyrir \u00fev\u00ed a\u00f0 \u00feessi athygliskerfi sj\u00e1i um a\u00f0 velja \u00e1reiti \u00ed sj\u00f3nleitarverkefnum. T\u00edmaferlar sj\u00f3nleitar og skynjunar tv\u00edr\u00e6\u00f0ra \u00e1reita eru um margt svipa\u00f0ir. En \u00fe\u00f3 svo a\u00f0 ni\u00f0urst\u00f6\u00f0urnar h\u00e9r \u00far ranns\u00f3knum me\u00f0 starfr\u00e6nni segul\u00f3mmyndun s\u00fdni a\u00f0 \u00feessi athygliskerfi leiki mikilv\u00e6gt hlutverk \u00ed sj\u00f3nleit og einnig \u00ed skynjun tv\u00edr\u00e6\u00f0ra \u00e1reita, \u00fe\u00e1 fundust engin sterk r\u00f6k fyrir sameiginlegum kerfum fyrir \u00feessi tv\u00f6 ferli. \u00dev\u00ed voru tv\u00e6r ranns\u00f3knir framkv\u00e6mdar til vi\u00f0b\u00f3tar til \u00feess a\u00f0 reyna a\u00f0 finna tengsl milli \u00feessara ferla. N\u00e1nar tilteki\u00f0 voru \u00e1hrif \u00fdfingar \u00ed sj\u00f3nkynjun \u00e1 skynjun tv\u00edr\u00e6\u00f0ra \u00e1reita metin sem og \u00e1hrif \u00feess s\u00ed\u00f0arnefnda \u00e1 \u00fdfingar\u00e1hrif. Eftir a\u00f0 margar tilraunir h\u00f6f\u00f0u veri\u00f0 framkv\u00e6mdar fundust engin merki um gagnkv\u00e6m \u00e1hrif milli \u00feessara tveggja ferla. Ni\u00f0urst\u00f6\u00f0urnar s\u00fdndu hins vegar til \u00feess a\u00f0 ferlin tv\u00f6 hef\u00f0u a\u00f0skilin \u00e1hrif \u00e1 sj\u00f3nskynjun. Ni\u00f0urst\u00f6\u00f0urnar benda til \u00feess a\u00f0 heilinn hafi \u00fer\u00f3a\u00f0 tv\u00f6 ferli, sem vinna \u00e1 a\u00f0skilinn h\u00e1tt \u00fe\u00f3 svo a\u00f0 heilasv\u00e6\u00f0in sem tengjast virkni \u00feeirra s\u00e9u \u00feau s\u00f6mu.<\/p>\n

Abstract<\/strong><\/p>\n

Several authors have proposed that if different paradigms of visual perception all have implemented the concept of attention, there may be a central mechanism in the brain that controls it. For instance, the role of the frontoparietal network of the brain in visual search and during visual interpretation may be similar. However, while our fMRI results suggest that the frontoparietal network is important for visual search, and ample evidence exists that suggests the same for its role in perceptual interpretation of ambiguous visual input, those findings show no direct evidence of a general attention mechanism for both paradigms. To this end, another two studies were conducted to investigate a behavioral link between the two visual paradigms. Specifically, the effects of search priming onto bistable perception, and of perceptual bias onto visual search were studied. However, our findings suggest that the brain may have implemented mechanisms that are similar, and perhaps even rely on shared neuronal populations, but that are functionally independent.<\/p>\n

Um doktorsefni\u00f0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n

Manje Brinkhuis er f\u00e6ddur \u00ed Hollandi \u00e1ri\u00f0 1984, og lauk BS-pr\u00f3fi \u00ed s\u00e1lfr\u00e6\u00f0i fr\u00e1 Utrecht University \u00e1ri\u00f0 2010 og meistaragr\u00e1\u00f0u \u00ed l\u00edfv\u00edsindum fr\u00e1 sama sk\u00f3la \u00feremur \u00e1rum s\u00ed\u00f0ar. Manje innrita\u00f0ist \u00ed doktorsn\u00e1m vi\u00f0 S\u00e1lfr\u00e6\u00f0ideild H\u00e1sk\u00f3la \u00cdslands \u00e1ri\u00f0 2013.<\/p>\n<\/div><\/div>","protected":false},"featured_media":1269,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2019-01-17T13:00:00+00:00","_phd_date_end":"2019-01-17T16:00:00+00:00","_phd_location":"A\u00f0albygging H\u00e1t\u00ed\u00f0asalur H\u00e1sk\u00f3la \u00cdslands","_phd_admission":"A\u00f0gangur \u00f3keypis","_phd_thesis_title":"Valbundin sj\u00f3nskynjun: Sj\u00f3nleit og skynjun tv\u00edr\u00e6\u00f0ra \u00e1reita byggja \u00e1 \u00f3l\u00edkum ferlum. 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