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[{"key": "dc.contributor.advisor", "value": "Parviainen, Tiina", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Virtaintorppa, Teemu", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2024-05-13T14:59:11Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2024-05-13T14:59:11Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2023", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/94794", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Visual attention can be focused not only on external stimuli, but also on internal visual working memory (VWM) representations. This internal attention is needed to prioritize relevant over irrelevant memory items, as the capacity of VWM is strictly capacity limited. Previous research has indicated that directing internal attention to VWM representations, as measured by retro-cuing, enhances memory performance. However, the neural mechanisms of this retro-cue benefit are not clear, although the neural marker of hemispheric asymmetry in occipital alpha has been associated with it. Previous research has focused mainly on symbolic cues. In contrast, this thesis investigated the impact of using verbal cues in shifting internal attention to VWM representations on memory performance and alpha activity. Specifically, we aimed to determine whether verbal cues elicit hemispheric asymmetry in occipital alpha and improve memory performance. We also sought to eliminate a confounding variable in the retro-cue paradigm. 14 participants performed a retro-cue task while undergoing MEG. We hypothesized that hemispheric asymmetry in occipital alpha would manifest as decreased alpha activity contralateral to the relevant memory item. We assumed this to be accompanied by a retro-cue benefit. Interestingly, only the latter hypothesis was supported; a clear retro-cue benefit was found, but no statistically significant asymmetry in occipital alpha was evident. We did note a trend towards stronger alpha activity in the right occipital hemisphere. These findings might have been caused by the lateralized processing of the verbal cues. Alternatively, they may imply that the neural mechanisms underlying shifts in internal attention to VWM representations are domain dependent. More generally our findings indicate that hemispheric asymmetry in occipital alpha is not essential for the retro-cue benefit, pointing to other possible neural mechanisms or pathways. Our findings contribute to a broader understanding of the interplay between internal attention and VWM as well as their research.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Visuaalinen tarkkaavuus voidaan kohdentaa ulkoisten \u00e4rsykkeiden lis\u00e4ksi visuaalisen ty\u00f6muistin (VWM) representaatioihin. T\u00e4t\u00e4 sis\u00e4ist\u00e4 tarkkaavuutta tarvitaan, jotta muistin sis\u00e4lt\u00f6j\u00e4 voidaan priorisoida, sill\u00e4 visuaalisen ty\u00f6muistin kapasiteetti on rajoitettu. Takaumavihjeill\u00e4 on osoitettu, ett\u00e4 sis\u00e4isen tarkkaavuuden kohdistaminen visuaalisen ty\u00f6muistin representaatioihin johtaa parempaan muistisuoriutumiseen. Ei ole selv\u00e4\u00e4, mill\u00e4 hermostollisella mekanismilla takaumavihjeet parantavat muistisuoriutumista, mutta takaraivolohkojen v\u00e4lisen alfa-asymmetrian uskotaan liittyv\u00e4n t\u00e4h\u00e4n takaumavihjehy\u00f6tyyn. Aikaisemmat tutkimukset ovat keskittyneet l\u00e4hinn\u00e4 symbolisiin vihjeisiin. T\u00e4st\u00e4 poiketen tarkastelimme t\u00e4ss\u00e4 tutkielmassa sis\u00e4isen tarkkaavuuden suuntaamista visuaalisen ty\u00f6muistin representaatioihin kielellisin vihjein. Tahdoimme saada selville, saavatko kielelliset vihjeet aikaan takaraivolohkojen v\u00e4list\u00e4 alfan asymmetriaa ja parantavatko ne muistisuoriutumista. Toivoimme samalla hankkiutuvamme eroon er\u00e4\u00e4st\u00e4 sekoittavasta muuttujasta takaumavihjeparadigmassa. 14 osallistujaa suoritti takaumavihjeteht\u00e4v\u00e4n MEG:ss\u00e4. Oletimme, ett\u00e4 takaraivolohkojen v\u00e4linen alfan ep\u00e4symmetria n\u00e4kyisi v\u00e4hentyneen\u00e4 alfa-aktiivisuutena kontralateraalisesti relevantin muistiobjektin suhteen. Oletimme my\u00f6s, ett\u00e4 takaumavihjeet johtaisivat parempaan muistisuoriutumiseen. Kiinnostavaa kyll\u00e4, vain j\u00e4lkimm\u00e4inen n\u00e4ist\u00e4 hypoteeseista osoittautui paikkansapit\u00e4v\u00e4ksi; selke\u00e4 takaumavihjehy\u00f6ty havaittiin, mutta tilastollisesti merkitsev\u00e4\u00e4 ep\u00e4symmetriaa takaraivolohkojen v\u00e4lisess\u00e4 alfassa ei. Trendi kuitenkin havaittiin, jossa alfa-aktiivisuus oli korostuneempaa oikeassa takaraivolohkossa kuin vasemmassa. N\u00e4m\u00e4 l\u00f6yd\u00f6kset voisivat selitty\u00e4 kielellisten vihjeiden lateralisoidulla prosessoinnilla. Vaihtoehtoisesti tuloksemme voivat viitata siihen, ett\u00e4 hermostolliset mekanismit, jotka ohjaavat sis\u00e4ist\u00e4 tarkkaavuutta ty\u00f6muistirepresentaatioihin, ovat domain-riippuvaisia. Yleisemmin tuloksemme indikoivat, ett\u00e4 takaraivolohkojen v\u00e4linen alfan ep\u00e4symmetria ei ole takaumavihjehy\u00f6dyn edellytys, mik\u00e4 voisi vihjata muiden hermostollisten mekanismien osallistumiseen. L\u00f6yd\u00f6ksemme parantavat ymm\u00e4rryst\u00e4mme sis\u00e4isen tarkkaavuuden ja visuaalisen ty\u00f6muistin vuorovaikutuksesta sek\u00e4 t\u00e4m\u00e4n tutkimuksesta.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2024-05-13T14:59:11Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2024-05-13T14:59:11Z (GMT). No. of bitstreams: 0\n Previous issue date: 2023", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "44", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "internal attention", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "visual working memory", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "verbal cue", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "retro-cue", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "alpha oscillation", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "alpha asymmetry", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "occipital cortex", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Verbal direction of internal attention in visual working memory elicits a retro-cue benefit without hemispheric asymmetry in occipital alpha : a MEG study", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202405133562", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Education and Psychology", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Kasvatustieteiden ja psykologian tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Psychology", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Psykologian laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Psychology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Psykologia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "202", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "MEG", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tarkkaavaisuus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ty\u00f6muisti", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "n\u00e4k\u00f6muisti", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "MEG", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "attention", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "working memory", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "visual memory", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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