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[{"key": "dc.contributor.advisor", "value": "Parviainen, Tiina", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Perell\u00f3, Arttu", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2020-04-14T05:43:09Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2020-04-14T05:43:09Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2020", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/68505", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Ik\u00e4\u00e4ntymisen tiedet\u00e4\u00e4n heikent\u00e4v\u00e4n kognitiivista prosessointia, mutta s\u00e4\u00e4nn\u00f6llinen fyysinen ja kognitiivinen aktiivisuus toimivat suojatekij\u00f6in\u00e4 ik\u00e4\u00e4ntymisen aiheuttamia kognitiivisia muutoksia vastaan. T\u00e4m\u00e4n tutkimuksen tarkoituksena oli selvitt\u00e4\u00e4, kuinka 12 kuukauden mittainen kognitiivisen ja fyysisen harjoittelun ohjelma vaikuttaa tutkittavien okkipitaalilohkon alfaoskillaation (8-13 Hz) modulaatioon visuaalisen ty\u00f6muistiteht\u00e4v\u00e4n aikana. Tutkimuksen kontrolliryhm\u00e4 osallistui ainoastaan fyysisen harjoittelun interventioon. Tutkimus on toteutettu osana laajempaa PASSWORD- tutkimusaineistoa yhteisty\u00f6ss\u00e4 Jyv\u00e4skyl\u00e4n yliopiston Monitieteisen Aivotutkimuskeskuksen, Gerontologian tutkimuskeskuksen ja Psykologian laitoksen kanssa. Yhteens\u00e4 tutkimukseen osallistui 24 tutkittavaa, kahdeksan miest\u00e4 ja 16 naista. Tutkittavat olivat perusterveit\u00e4, ja syntyneet vuosina 1935-1946 (ka. 1942,5). Tutkittavat suorittivat visuaalisen ty\u00f6muistiteht\u00e4v\u00e4n, jonka \u00e4rsykkein\u00e4 k\u00e4ytettiin neutralisoituja Karolinska Directed Emotional Faces -kasvokuvia. Ty\u00f6muistiteht\u00e4v\u00e4n aikana tutkittaville esitettiin visuaalinen distraktori ensimm\u00e4isen \u00e4rsykkeen ja mieleenpalautuskuvan v\u00e4lisen\u00e4 ajanjaksona. Ensimm\u00e4isen 1500 ms ajan distraktorin ilmenemisen j\u00e4lkeen alfarytmin amplitudi vaihteli kahdessa sykliss\u00e4, joista ensimm\u00e4isen aikana alfarytmin voimakkuus laski ja toisen aikana alfarytmin voimakkuus nousi. T\u00e4ten jatkotarkastelut toteutettiin kahdessa eri aikaikkunassa. Koe- ja kontrolliryhm\u00e4n v\u00e4lisi\u00e4 eroja ei l\u00f6ytynyt kummassakaan aikaikkunassa. Kuitenkin, alfarytmin modulaatio vasteena vaikeisiin distraktoreihin oli voimakkaampaa kuin vasteena helppoihin distraktoreihin molemmissa aikaikkunoissa. Lis\u00e4ksi ensimm\u00e4isest\u00e4 aikaikkunasta (300-800 ms) oli l\u00f6ydett\u00e4viss\u00e4 alfarytmin desynkronisaatiota oikean okkipitaalilohkon alueilta, joissa visuaaliset kasvojentunnistusalueet yleens\u00e4 sijaitsevat. Sen sijaan toisessa aikaikkunassa (800-1500 ms) alfarytmin synkronisaatio oli voimakkainta vasemman okkipitaalilohkon alueilla. T\u00e4m\u00e4n lis\u00e4ksi alfarytmin voimakkuus vasemman okkipitaalilohkon alueilla laski alku- ja loppumittauksen v\u00e4lill\u00e4. Ilman ryhm\u00e4vaikutuksia toteutetut parittaisten t-testien vertailut vahvistivat havaittua suuntausta, jonka mukaan alfarytmin voimakkuuden lasku (desynkronisaatio) ensimm\u00e4isess\u00e4 aikaikkunassa on p\u00e4\u00e4osin oikean okkipitaalilohkon alueilla tapahtuvaa, ja toisen aikaikkunan alfarytmin voimakkuuden nousu (synkronisaatio) p\u00e4\u00e4osin vasemman okkipitaalilohkon alueilla tapahtuvaa. Tuloksien mukaan yhdistetty kognitiivisen ja fyysisen harjoittelun ryhm\u00e4 ja ainoastaan fyysiseen harjoitteluun osallistunut ryhm\u00e4 eiv\u00e4t eronneet toisistaan visuaalisen ty\u00f6muistiteht\u00e4v\u00e4n aikaisissa okkipitaalilohkon alfarytmin voimakkuuden muutoksissa. Lis\u00e4ksi tulokset viittaavat siihen, ett\u00e4 useamman visuaalisen \u00e4rsykkeen samanaikainen aktiivinen prosessointi ja inhibitio tapahtunee per\u00e4kk\u00e4in ja vuorovaikutuksessa molempien aivopuoliskojen kanssa. T\u00e4m\u00e4 tutkimus kuuluu Jyv\u00e4skyl\u00e4n yliopiston profilointialaan monitieteinen aivotutkimus, jota rahoittaa Suomen Akatemia.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Aging is known to degenerate cognitive functions, but regular physical and cognitive activity operate as protective factors against the impairment. The purpose of this MEG experiment was to find out how a 12-month long structured progressive physical and cognitive training program affects on occipital alpha-band (8-13 Hz) power during a visual working memory task. Control group participants took part only in physical training program. This study is carried out as a part of PASSWORD research project in co-operation with Jyv\u00e4skyl\u00e4 Centre for Interdisciplinary Brain Research, Department of Psychology and Gerontology Research Center of Faculty of Sport and Health Sciences, University of Jyv\u00e4skyl\u00e4. Altogether, 24 elderly completed the study, of which eight were male and sixteen were female. Healthy participants were born between the years 1935 and 1946 (mean year of birth 1942,5). Participants completed an in-house developed visual working memory task with modified Karolinska Directed Emotional Faces used as stimuli. The task contained a visual distractor between encoding and retrieval stimuli. During the first 1500 ms after distractor appearance alpha-band power seemed to vary in two phases, of which during the first alpha-band power decreased and during the second alpha-band power increased. Thus, inspection of the results was made in two time windows. No differences between the groups were found in either time window. However, the alpha power modulation in response to difficult distractors was found to be stronger than in response to easy distractors in both time windows. In addition, the first time window (300-800 ms) showed a decrease in alpha power (alpha desynchronization) especially in the right occipital hemisphere where the facial recognition areas are generally located. In the second time window (800-1500 ms) increase in alpha power (alpha synchronization) was discovered to be strongest in the left occipital hemisphere. Moreover, alpha-band power in left occipital areas decreased between the pre- and post- intervention measurement. Inspections of pre-planned contrasts without the group effects confirmed the observed trend that the alpha desynchronization effect in the first time window was mainly brought by right occipital hemisphere and the alpha synchronization effect in the second time window was mainly brought by left occipital hemisphere. The results suggest that a group participating in combined physical and cognitive training program did not differ from physical training group in occipital alphaband power changes during a visual working memory task. The results further suggest that simultaneous retaining and inhibiting of different visual stimuli might happen sequentially and in interaction with both hemispheres. This study is a multidisciplinary brain research project of the University of Jyv\u00e4skyl\u00e4 and it is funded by the Academy of Finland.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2020-04-14T05:43:09Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2020-04-14T05:43:09Z (GMT). No. of bitstreams: 0\n Previous issue date: 2020", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "41", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "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": "cognitive training", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "alpha rhythm", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "inhibition", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "visual distractor", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Effects of a 12-month progressive physical and cognitive training program on occipital alpha-band power during a visual working memory task", "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-202004142726", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Kasvatustieteiden ja psykologian tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Education and Psychology", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Psykologian laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Psychology", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Psykologia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Psychology", "language": "en", "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": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": 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{"key": "dc.subject.yso", "value": "ageing", "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": "physical training", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "senior citizens", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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